What exactly Linear advance means and how does it affects your 3D print’s quality and finish? Is there any way you can improve your print’s quality using this method? These are the questions which will be answered in this blog post. Lets get started
Before answering what exactly Linear advance is, let us take a look on what exactly happens inside the extruder and hot-end while it is printing. It is really important to know the background story first. It might not take that long. So just keep calm and keep reading
Over/Under Extrusion
In 3D printers with Bowden extruder, the fixed extruder feeds the filament to the moving hot-end by pushing the filament through a tube, which protects the filament from breaking. Extruder is relatively heavy when compared against the hot-end which in itself comprise of heater and the nozzle where the filament is actually melted and comes out from. A simple depiction is shown below in figure 1. Separating the extruder and hot-end makes the hot-end light which results in precise movements of hot-end while printing
Now as the filament moves across the tube enclosing the filament, it often tends to build pressure. In other words, when the extruder which is connected to a motor, pushes the filament in the tube, towards the hot-end, filament forms wave like structure. And the reason for this is simple. The size of nozzle opening is usually of the range 0.4 mm while a filament is 1.75 mm thick in girth. When the PLA melts, it oozes out of nozzle at a fixes pace. If the extruder pushes the filament more towards the hot-end, the filament would end up building some pressure in the tube and hence it will form some kind of wave inside the tube as shown in figure 2 below. Now, even if the extruder has stopped pushing the filament towards the hot-end, the pressure already built up inside the tube needs to be release and there is only one opening from where it can be released, the Nozzle. Therefore, the nozzle end up oozing out a little extra material, which it should NOT.
Due to this phenomenon, the layers we get are not uniform. If we take a closer look on each layer, it will have regions with under-extrusion which happen as the hot-end quickly starts moving at the beginning of layer, then comes good-extrusion which is region with even layer thickness and finally the layer end has region with over-extrusion which appears like a BLOB which forms as the nozzle keeps oozing out PLA even after the hot-end has stopped moving at the end of layer printing, as shown in figure 3.
This will cause 3D prints to have unwanted tiny blobs at the ends of each horizontal layer as shown in figure 4. The blobs are exaggerated slightly to make the blob effect conspicuous. However, this problem of extra material oozing out of nozzle, can be mitigated by enabling the Linear Advance.
Linear Advance
What is Linear Advance ?
Linear advance is basically an algorithm which predicts the existing pressure in the tube. It is now-a-days included in almost all of the modern firmware of every 3D printers. All you need to do is enable it as it is disabled by default.
It basically separates the extruder from the other stepper motors in terms of movements. For example, when some stepper motor is calibrated, it’ll move the distance, say 0 to 100 mm in exact same manner (covering exact same distance with same speed) every time. But with extruder, it is different. In case of extruder, it can be compared to the process of icing on a cake. The reason being, as mentioned above, we’ve a 1.75 mm thick filament which melts and is squeezed out from a 0.4 mm thick Nozzle. So, the pressure needs to be applied evenly, such that the liquid PLA oozing out of Nozzle doesn’t spread out too much.
How does it function ?
Linear Advance calculates the pressure build up in the extruder and causes the hot-end to stop printing slightly early before reaching the end of layer. So, the extra material still oozes out while extruder is still moving and printing the last region of each horizontal layer which creates smooth layers. This way, it mitigates the formation of blobs
It also adds a slight delay to the movement of hot-end at the beginning of each layer. So that, the hot-end’s movement aligns with the oozing of material which reduces under-extrusion at the beginning of each horizontal layer.
Advantages
- With Linear Advance enabled, you get sharp corner
- It speeds up the printing process slightly
- It decreases the blob formation.
- Setting it up is very easy, in case of MARLIN firmware which is used or can be flashed in most of the Chinese 3D printer companies like Creality, AnyCubic and FlashForge etc.
Disadvantages
- It may take some time to download the firmware, setting it up especially when you are a beginner.
Enabling Linear Advance
Before enabling Linear Advance, there are some pre-requisites that needs to be fulfilled.
Pre-requisites
- Setup bootloader and access to firmware
- Make sure to calculate E-Step from calibration.
- Make sure you have a consistent first layer.
Now, after making sure all the pre-requisites are met, Linear Advance can be enabled in Marlin using the following procedure
- Download Marlin by clicking on the Button shown below (just scroll down to find two buttons) and downloading the latest build available for your platform. Its a small ~14 MB zip file.
- After downloading the Marlin, extract it to a location you can easily find (e.g,on Desktop or perhaps in Downloads folder, whichever you like)
- COPY : Go to folder config -> examples -> Creality (or the company of your 3D printer, in case it is different from Creality) -> Ender-3 (or the model of your 3D printer) and then copy all the files.
- PASTE: Go to folder Marlin and paste all the copied files here. It will replace two files ( configuration.h and configuration_adv.h )
- Now simply open the file Marlin.ino with Arduino IDE which will open all the necessary files automatically in Arduino IDE in different tabs (if you don’t have it installed, press the button below to go to Arduino website, download the software and install it). Go to tab “Configuration_adv.h”.
- Press CTRL + F (on Windows) or / (on linux or if opening the file in vim) and search “LIN_ADVANCE”.
- Uncomment the line saying #define LIN_ADVANCE (basically delete the two forward slashes ‘//’ in the beginning of the line). In build 2.0.x, it is on line 1415. You can simply press CTRL + G and type 1415 to directly go to that line, but in future builds line number might change as well.
- Save the code. We will use this updated code to flash the Marlin firmware to 3D printer.
- Connect you 3D printer to the computer using USB cable. Your computer will assign a COM port to your 3D printer.
- At this point, chances are that your printer’s motherboard is not installed by default on your computer. So to do that, click on the button Printer boards below to open the website. You need to find which board your 3D printer uses. In case of Creality Ender-3, it uses Sanguino , the repository of which is maintained by Kristian Sloth Lauszus. Simply copy the path (or URL which is mentioned on the website, ending with .json)
- Next, go back to Arduino IDE -> File -> Preferences and paste the URL under Additional Boards Manager URLs as shown in figure 5 below. This only tells Arduino IDE the address from where to download, but it has not downloaded the profile yet. To do so, go Arduino IDE -> Tools -> Boards (currently selected board) -> Board Manager as shown in figure 6 below. Once it opens, search for board called “Sanguino” and install it by clicking on the Install button on the lower right corner.
- After installing the board, you also need to select it(pretty obvious, isn’t it, why would you install it otherwise ! Duh,.. :p). Simply go to Tools -> Boards -> Sanguino and select it.
- We are almost there, don’t worry. After this, you also need to select the right processor used by your 3D printer. In case of Creality Ender-3, it uses ATmega 1284P. Select the board by going to Tools -> Processors -> Atmega 1284P (16 Mhz). Done too much selection. Phew, i know….!!
- We need one last thing – U8glib.h library. To to do, click on button below for “U8glib” to open the link in a new tab, scroll down and go to “U8glib for Arduino” (or simply select this hyperlink), download the version which is not too recent (at the time of writing this blog, v1.17 seems a good choice as v1.18 is the latest one) as a zip file.
- Go to Sketch -> Include Library -> Add .Zip Library and select the downloaded file as shown in figure 7.
- Now, all configurations are done. Click the Compile button (shaped like a tick) in Arduino IDE to compile. It might take some time depending on the speed of your computer and available RAM but it should compile successfully without errors.
In case you still face issues, check out the video tutorial below by Thomas Sanladerer on how to upgrade Marlin Firmware.


#n #! /bin/sed -f # remove all trailing /s s/\/*$// # add ./ if there are no path, only filename /\// !s/^/.\// # save path+filename h # remove path s/.*\/// # do conversion only on filename y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ # swap, now line contains original path+file, hold space contains conv filename x # add converted file name to line, which now contains something like # path/file-name\nconverted-file-name G # check if converted file name is equal to original file name, if it is, do # not print nothing /^.*\/\(.*\)\n\1/ b # now, transform path/fromfile\ntofile, into mv path/fromfile path/tofile # and print it s/^\(.*\/\)\(.*\)\n\(.*\)$/mv \1\2 \1\3/p ### colorized by sedsed, a debugger and code formatter for sed scripts


--- layout: post title: 'CBSE Mathematics Question Papers (Class 12)' description: 'One stop storehouse for all CBSE Mathematics Question Papers of Class 12' date: 2020-08-28 icon: 'help-circle' ---
Question Paper: 2020 - Click here to download.
Question Paper: 2018 (Set A) - Click here to download.
Question Paper: 2018(Compartment-Set 1) - Click here to download.
Question Paper: 2018(Compartment-Set 2) - Click here to download.
Question Paper: 2018(Compartment-Set 3) - Click here to download.
Question Paper: 2017(All India-Set 1) - Click here to download.
Question Paper: 2017(All India-Set 2) - Click here to download.
Question Paper: 2017(All India-Set 3) - Click here to download.
Question Paper: 2016(All India-Set 1) - Click here to download.
Question Paper: 2016(All India-Set 2) - Click here to download.
Question Paper: 2016(All India-Set 3) - Click here to download.


See: Description
| Class | Description |
|---|---|
| AbstractJob<KeyIn,ValueIn> |
Base class for all map reduce job implementations
|
| AbstractJobTracker |
This is the base class for all
JobTracker implementations on node and client side.It combines a lot of the base functionality to handle remote operations. |
| CombinerResultList<E> | |
| HashMapAdapter<K,V> |
Simple HashMap adapter class to implement DataSerializable serialization semantics
to not loose hands on serialization while sending intermediate results.
|
| JobPartitionStateArraySerializerHook |
This class is the auto registered serializer hook for a
JobPartitionState array. |
| JobPartitionStateSerializerHook |
This class is the auto registered serializer hook for a
JobPartitionState . |
| ListKeyValueSource<V> |
This
KeyValueSource implementation is used in
KeyValueSource.fromList(com.hazelcast.core.IList) to generate a default
implementation based on a Hazelcast IList . |
| MapKeyValueSource<K,V> |
This
KeyValueSource implementation is used in
KeyValueSource.fromMap(com.hazelcast.core.IMap) to generate a default
implementation based on a Hazelcast IMap . |
| MapReduceDataSerializerHook |
This class contains all the ID hooks for IdentifiedDataSerializable classes used inside the MR framework.
|
| MapReducePortableHook |
This class registers all Portable serializers that are needed for communication between nodes and clients
|
| MapReduceService |
The MapReduceService class is the base point for the map reduce implementation.
|
| MapReduceUtil |
This utility class contains a few basic operations that are needed in multiple places
|
| MultiMapKeyValueSource<K,V> |
This
KeyValueSource implementation is used in
KeyValueSource.fromMultiMap(com.hazelcast.core.MultiMap) to generate a default
implementation based on a Hazelcast MultiMap . |
| SetKeyValueSource<V> |
This
KeyValueSource implementation is used in
KeyValueSource.fromSet(com.hazelcast.core.ISet) to generate a default
implementation based on a Hazelcast ISet . |
Copyright © 2016 Hazelcast, Inc.. All Rights Reserved.


Unit - 2
Windows:
A window is a separate viewing area on a computer display screen in a system that allows multiple viewing areas as part of a graphical user interface ( GUI ). Windows are managed by a windows manager as part of a windowing system . A window can usually be resized by the user.
features of windows —
desktop
The desktop is the main screen area that you see after you turn on your computer and log on to Windows. Like the top of an actual desk, it serves as a surface for your work. … The desktop is sometimes defined more broadly to include the taskbar and Windows Sidebar.
start menu
The Microsoft Windows Start menu is the primary location in Windows to locate your installed programs and find any files or folders. or by default program that are already install in the system.
control panel
The Control Panel is a component of Microsoft Windows that provides the ability to view and change system settings. It consists of a set of applets that include adding or removing hardware and software, controlling user accounts, changing accessibility options, and accessing networking settings. through control panel the user can make change in their computer according to their need.
my computer
My Computer gives us an overview about different types of drives present in the computer. The My Computer folder is a gateway to all the data stored on the computer, attached devices, and the network – as well as a shortcut to most of your system information. in my computer thier are derive that store the data or information of the user and their and retrive the data according to the need of user.
windows explorer
Windows Explorer is the file manager used by Windows . It allows users to manage files, folders and network connections, as well as search for files and related components. … The desktop and the taskbar also form part of Windows Explorer.
accessories.
Accessories are items of equipment that are not usually essential, but which can be used with or added to something else in order to make it more efficient, useful, or decorative. Accessories are articles such as belts and scarves which you wear or carry but which are not part of your main clothing.
Managing multiple windows
Managing multiple windows means that the user can use the computer application into many window the user can used so many appication in single window through managing multiple window , for seening how many the user have to press the ATL + TAB key on their keyboard to switch between the application and their so many way for that .
arranging icons on the desktop
To arrange icons by name, type, date, or size, right-click a blank area on the desktop, and then click Arrange Icons. Click the command that indicates how you want to arrange the icons (by Name, by Type, and so on). If you want the icons to be automatically arranged, click Auto Arrange.
creating and managing folders
For creating and manging folders there are following step :
- Click the +New button in the All Folders section title bar. The Create Folder dialog appears.
- Type a name for the folder in the Folder Name field.
- If you wish to nest the new folder inside another existing folder, select the parent folder.
- Click OK or press Enter.
managing files
File management in windows can be done through Windows explorer or My Computer. Windows Explorer displays the hierarchical list of files, folders, and storage drives (both fixed and removable) on your computer. It also lists any network drives that have been mapped to as a drive letters on your computer.
drives
A drive is a location (medium) that is capable of storing and reading information that is not easily removed, like a disk or disc. All drives store files and programs used by your computer. For example, when you write a letter in a word processor, the program is loaded from the hard drive.  The operating system is the last program to be closed as part of a computer’s shut down process. We recommend all computers be properly shut down to help prevent data corruption.
Entertainment –
CD Player
A CD player is an electronic device that plays audio compact discs, which are a digital optical disc data storage format. CDs typically contain recordings of audio material such as music or audiobooks.
DVD Player
A DVD player is a device that plays DVDs produced under both the DVD-Video and DVD-Audio technical standards, two different and incompatible standards. … DVD players are connected to a television to watch the DVD content, which could be a movie, a recorded TV show, or other content.
Media Player
Media player is a type of application software for playing multimedia computer files like audio and video files. Media players commonly display standard media control icons known from physical devices such as tape recorders and CD players
Sound Recorder,
Sound recorder is a type of appliction inw which the its can record the sound of the user or any type of recording,A voice recorder is essentially a digital device that records sound, saves it in file format, and transfers it to another device, such as a computer.
Volume Control.
Volume control is task icon in which the user can increase and decrease the volume of the media that is plays in their computer and increase and decrease the volume of computer.
WORD PROCESSING:
Introduction to Word processing
Word Processing refers to the act of using a computer to create, edit, save and print documents. In order to perform word processing, specialized software (known as a Word Processor) is needed.
Names of some commonly used word processing software.
- LibreOffice Writer.
- WPS Office
- FocusWriter.
- FreeOffice TextMaker
- Google Docs.
Introduction to MS-Word:
Microsoft Word or MS Word (often called Word) is a graphical word processing program that users can type with. It is made by the computer company Microsoft. Its purpose is to allow users to type and save documents. Similar to other word processors, it has helpful tools to make documents.
Feature
There are many feature of MS Word some of the feature are as follow :
- Convert a List to a Table.
- Convert a Bulleted List to SmartArt.
- Create a Custom Tab.
- Quick Selection Methods.
- Add Placeholder Text.
- Changing Case.
- Quick Parts.
- Touch/ Mouse Mode in Word 2013.
document creating
The word is used to create any type letter and program that users can type with. there are some step for creaating the word :
- Open Word. Or, if Word is already open, select File > New.
- In the Search for online templates box, enter a search word like letter, resume, or invoice. Or, select a category under the search box like Business, Personal, or Education.
- Click a template to see a preview. …
- Select Create.
formatting
Formatting text in Microsoft Word refers to controlling how text appears in your document. This includes the size, color, and font of the text. It also covers text alignment, spacing, and letter case. Microsoft Word styles make it easy to change and apply styles throughout a document.
standard toolbar
The Standard toolbar is located just below the menu bar. It contains buttons representing commands such as New, Open, Save, and Print. The Formatting toolbar is located by default next to the Standard toolbar.
drawing toolbar
Drawing objects include shapes, diagrams, flowcharts, curves, lines, and WordArt. These objects are part of your Word document. You can change and enhance these objects with colors, patterns, borders, and other effects. Note: It is no longer necessary to insert a drawing canvas to work with drawing objects in Word.
tables
A table is made up of rows and columns. The intersection of a row and column is called a cell.Tables are often used to organize and present information, but they have a variety of uses as well.you can use tables to align numbers and create interesting page layouts.
Mail-merge
Mail merge is a Microsoft Word feature often used to produce a number of similar documents, including elements from a separate data document . The list is combined with standard text, usually to produce a letter or invite to a series of different recipients.
pictures
Word allows you to insert pictures into your document such as logos of companies, photos and other pictures to give more interest or a more professional speed(look) to your document
clipboard
The Office Clipboard stores text and graphics that you copy or cut from anywhere, and it lets you paste the stored items into any other Office file.
graphs
Through the graph feature of the word we can present the numerical data and numerical nummber in graphs, pie chart and many more way to represent that.
print formatting
Formatting text in Microsoft Word involves tasks like bolding the text, italicising it, and changing the font and size. The commands to perform all of these formatting tasks are found on the Home tab in the Font group.
page numbering
Page numbering is the process of applying a sequence of numbers (or letters, or Roman numerals) to the pages of a book or other document. The number itself, which may appear in various places on the page,
printing documents
which prints a document using the current print configuration (defined using the Setup and Print command). The button on the button bar. On Linux platforms, this is a shortcut to the Print command. On Windows platforms, this is a shortcut to the Setup and Print command.
Spell Check
Spell check is the feature A software program or program feature designed to locate misspelled words and notify the user of the misspellings. … When running a spell check on a document with red underlines, Word gives suggestions for each misspelled word.
Thesaurus
The Thesaurus is a software tool that is used in the Microsoft Word document to look up (find) synonyms (words with the same meaning) and antonyms (words with the opposite meaning) for the selected word.
Find & Replace
The find and replace feature in which the user can find and replace any word in thier sentence and the user can Find and Replace helps you to find words or formats in a document and can let you replace all instances of a word or format. This is particularly handy in long documents. To use Find and Replace, use the shortcut Ctrl+H or navigate to Editing in the Home tab of the ribbon, then choose Replace.
Inserting Header and footer
Headers and Footers are used to insert additional information such as title, file name, date, page numbers, etc. The presence of both header and footer in the Word document makes your document more professional and easier to read as well as understand.
Introduction to MS - Power point
Microsoft PowerPoint is a computer application program written by Microsoft. It mainly used to Design for Presentation. the mainly function of powerpoint is to access toolbar, mini toolbar, themes, slide, placeholder, save presentation, change the background of themes, insert picture, edit picture, table format, insert chart, animation effect, and more.
Auto-wizard
PowerPoint has an AutoContent Wizard to help you create a presentation. The wizard provides several slides with different content guides. Presentation guides are available in several areas, including general, corporate, and sales and marketing.
creating a presentation using Auto content wizard
- In the task pane under New Presentation, choose From AutoContent Wizard.
-As you continue working in the wizard, think about what you presentation best fits your needs. If you’re not sure which choice to make, try General - Generic.Click Next after you have chosen a presentation type.
-
The next screen asks, What type of output will you use?
-
Because you will likely be doing an On-screen presentation, click inside the circle next to On-screen presentation. Or, if you are not, feel free to choose another presentation type.
-
Click Next.
-
On the next screen, you can type in your Presentation Title. Add a footer if necessary.
-
Click Next.
-
The last AutoContent Wizard dialog box appears.
-
Click Finish.
-
Your slides will appear, and you can go through each one and make changes to the content. Edit the slides in Outline View in the left pane, or type directly into the slides in the center pane.
Blank presentation,
A blank presentation has a white background and black text without any additional design elements. By default, the presentation only contains a title slide. You can click on the text boxes and type in your own text. To add a slide, click on the option for a New Slide and select the type of slide you want.
adding slide to a presentation
-
In the slide thumbnail pane on the left, click the slide that you want your new slide to follow.
-
On the Home tab, click New Slide.
-
In the New Slide dialog box, select the layout that you want for your new slide. Learn more about slide layouts.
-
Select Add Slide.
slide view
Slide View shows one slide at a time Slide view is optimized for editing. You can edit not only the text of a slide but also any graphics, sounds, and animations that might be included on the slide. This is usually the best view when you are working with an individual slide.
outline view
Outline View shows the contents of your presentation in outline format. This view is optimized for organizing and arranging the content of your presentation. Because the contents of all slides (that will fit on the page) are shown at once, you can easily view and change the order of topics and subtopics. This view is also probably the most efficient for entering the contents of your presentation.
slide sorter view
Slide Sorter View shows a thumbnail image of each slide in your presentation. This view is best when you want to rearrange the order of your slides or just want to see each slide in your presentation with the formats and colors you have chosen. In Slide Sorter View you can’t edit the contents of a slide, but you can quickly switch to Slide View were you can edit the contents.
notes view and slide show view
Notes Page View shows one slide at a time with speaker’s notes. This view is best when you are entering or reviewing the notes you made for slides.
Slide Show View shows your presentation as it will look to the audience when you run it. This view displays one slide at a time in full-screen mode
Changing text font and size
- Select the shape or text box you want to change.
- On the Format tab, click the More drop-down arrow in the Shape Styles group. Clicking the More drop-down arrow.
- A drop-down menu of styles will appear. Select the style you want to use. …
- The shape or text box will appear in the selected style.
selecting text style and colour
- Select the text that you want to change.
- On the Home tab, choose Font Color, and then select the color that you want to change the color of the text to.
to set header and footer
-
Open a powerpoint slide
-
Click INSERT > Header & Footer.
-
On the Slide tab, check Footer.
-
In the box below Footer, type the text that you want, such as the presentation title.
-
Check Date and time to add that to your slides.
Using bullets, clipart and word art gallery
clip art gallery Clip art refers to a graphic or a picture that you can insert in your document. It comes in different formats and styles. It is used to enhance the appearance of a document. The steps to insert a clip art are given below;
-
Place the cursor where you want to insert the clip art
-
Select the Insert tab
-
In Illustrations group click the Clip Art command;
-
A task pane appears on the right side of document
-
Enter the keyword in ‘Search for’ field and select the suitable option in ‘Search in’ and ‘Results should be’ fields
-
Click Go, clip art menu will appear
-
Select the desired clip art with a left click
Adding bullets
-
On the slide, select the lines of text in a text placeholder or table that you want to add bullets or numbering to.
-
On the HOME tab, in the Paragraph group, click Bullets or Numbering.
-
To change all lines of text, select the outline of the text object, and then apply the bullet or numbering.
Adding transitions and Animation effects
-
On the Slides tab, hold down the Ctrl key and then click the slides to which you want to apply the transition.
-
Choose the Animations tab.
-
Click the More button in the Transition to this Slide group. A menu of transitions appears.
-
Click the transition you want to apply. PowerPoint applies the transition.
setting timings for slide show preparing note pages
-
Select Slide Show > Rehearse Timings.
-
Select Next, click the mouse or press the Right Arrow key to go to the next slide.
-
The time for the current slide is shown to the right of the Pause icon. …
-
Select Pause to pause the recording. …
-
Select Yes to save the slide timings, or No to discard them.


| Assigned: | Monday, October 20 |
| Quiz: | Tuesday, October 28 |
| Due: | Friday, October 31 |
| Grace Period Ends: | in your first lab section following the due date |
Goals: By the end of this lab, you should...
Directions: Consider Java's built in LinkedList class, which is an implementation of a list abstraction similar to the one presented in lecture. Note that the value contained in each list item in a LinkedList is simply an Object reference, so when we get the data out using any of the accessors or an iterator, an Object reference is returned. Therefore, it is often necessary to cast to the appropriate type before calling a method on the object itself. (This can result in a ClassCastException when the actual object's type doesn't match the type of the cast.)
Primitives like int and double are not classes, so their values are not Objects. However, sometimes we want to be able to put a primitive value in a data structure where an Object is required. Therefore, as a convenience, Java provides classes that correspond to each of the primitive types. For example, the Integer class provides a constructor whose parameter is the int value that should be held inside the object, and provides an accessor intValue that returns the int value that was stored in the Integer object.
LinkedList foo(int n) { LinkedList result = new LinkedList(); while (n >= 0) { result.addFirst(new Integer(n)); n--; } return result; } double bar(LinkedList numbers) { // numbers is not null Iterator it = numbers.iterator(); double result = 0; while (it.hasNext()) result += Math.pow(((Integer) it.next()).intValue(), 0.5); return result; } LinkedList baz(LinkedList a, LinkedList b) { // a and b are not null Iterator ls1 = a.iterator(); Iterator ls2 = b.iterator(); LinkedList result = new LinkedList(); while (ls1.hasNext() && ls2.hasNext()) { String aString = (String) ls1.next(); String bString = (String) ls2.next(); result.addLast(aString + " " + bString); } return result; }
Note: In the text of the lab, and in the output you generate, we'll use the caret (^) symbol to denote exponentiation. However, you should keep in maind that this is not Java syntax. (In fact, you may recall that the symbol is used for the boolean operator xor in Java.)
Polynomial
that satisfies
the following specification.
Your Polynomial class will be
a "wrapper" that uses a LinkedList as its
internal representation.
Be sure to test thoroughly and provide your test cases when
you turn in the assignment.
toString
takes no parameters and
returns a String representation of the polynomial. For example,
you might return something like
"4 + -7x + 0x^2 + 11x^3" as the result.
(Note: If you want to be more clever about toString
, you can
watch the signs and omit terms with a zero coefficient, returning
something like "4 - 7x + 11x^3" instead. Still better, show the high-order
terms first, as in "11x^3 - 7x + 4".)
addTerm
takes a double as its parameter and creates
a new high-order term of the polynomial with that coefficient.
For convenience, let
your method return "this" so you can make subsequent calls on the same
line. For example,
Polynomial foo = new Polynomial(); foo.addTerm(4).addTerm(-7).addTerm(0).addTerm(11);could be used as a shorthand for
Polynomial foo = new Polynomial(); foo.addTerm(4); foo.addTerm(-7); foo.addTerm(0); foo.addTerm(11);to create the polynomial 4 + -7x + 0x^2 + 11x^3.
evaluate
takes a double value x as its
parameter, and returns the double value of the polynomial at point x.
For example, if the polynomial is
7 + 5x - 2x^2 + 5x^3, then evaluate(2.0)
would return 49.0.
Use a recursive implementation of
Horner's method
as the algorithm for evaluation.
For example,
(Hint: Pass an iterator as one parameter to a recursive helper procedure.)
derivative
takes no parameters and
returns a new Polynomial that is the first derivative of this
polynomial. For example, if this polynomial is 7 + 5x - 2x^2 + 5x^3,
you would return a Polynomial object
representing the polynomial 5 - 4x + 15x^2.
sum
takes another Polynomial as its parameter and returns
a new Polynomial that is the result of adding together the two
polynomials. It should return the correct result
even if the two polynomials are of different degree.
ListOfPoints
that
holds a list of Point objects according to
the following specification. Again, use a LinkedList for your
internal representation.
Be sure to test all methods thoroughly.
toString
takes no parameters returns a String
representation of the list of points. For example, you might return
something like "( (0,4) (25,0) (50,8) )" as your result.
isEmpty
returns true
if and only if the list contains no points.
append
takes a Point as its parameter
and inserts the point at the end of the list.
listIterator
returns an Iterator for
the list of points.
minX
returns the least value of x in the
list.
maxX
returns the greatest value of x in the
list.
minY
returns the least value of y in the
list.
maxY
returns the greatest value of y in the
list.
rescale
takes four doubles (x1,
y1, width, height)
.
The method should not modify the existing list, but instead
should create and return a new
ListOfPoints that results from rescaling all of the points in this
list so that they fit exactly within
the rectangle defined by the parameters to the method.
(If you do the extra-credit graphing option,
you will use this method to rescale the points to "fit" the size of
the canvas for graphing.) Create new rescaled points.
Don't modify the original points.
Hint: To find the x coordinates in the new list, first subtract minX from the x value in the old list, then multiply by the ratio (width / (maxX - minX)), and finally add x1. Treat each y coordinate similarly. For example, suppose the list is
rescale(0.0, 0.0, 50.0, 8.0)
would return the list
sample
that takes three double parameters
(xlow, xhigh, interval)
and returns a ListOfPoints that
results from evaluating the polynomial in the range between
xlow and xhigh with the given interval. For example, if the polynomial
is x^2 + 2x - 3, then sample(-4, 4, 2)
would return the list
( (-4,5) (-2,-3) (0,-3) (2,5) (4,21) ).
Test this thoroughly.
main
method to
create several different Polynomial objects with different coefficients.
For each polynomial,
Extra credit option: (2 points) The extra credit option for this assignment is to graph each of your polynomials on a CS101Canvas, as follows. Items 1-4 must be entirely implemented in order for any extra credit to be awarded. (If you are working with a lab partner, the "extra credit" option is required for full credit on the assignment.) To use the canvas, you can import it from one of your earlier projects.
Part II: Turn in a completed cover sheet with printouts of all of the code you have written and a printout of the output from your test cases.
Demo: Bring your lab packet to a TA and demonstrate what your program does. The TA may ask you to modify your test cases and to demonstrate that the results are correct. The TA will record a demo grade on your cover sheet and will keep the packet so the code can be graded. Complete your demo no later than your next lab section immediately following the due date. If you do the demo in lab section, you must turn in your lab packet within the first 15 minutes.


Choropleth¶
mapclassify
is intended to be used with visualizaiton packages to handle the actual rendering of the choropleth maps defined on its classifiers. In this notebook, we explore some examples of how this is done. The notebook also includes an example that combines mapclassify
with ipywidgets to allow for the interactive exploration of the choice of:
classification method
number of classes
colormap
[14]:
import libpysal
import geopandas as gpd
import mapclassify
[15]:
mapclassify.__version__
[15]:
'2.3.0'
The example in this notebook use data on southern US counties from a built-in dataset available through libpysal
. We use libpysal
to obtain the path to the shapefile and then use geopandas
to create a geodataframe from the shapefile:
[16]:
pth = libpysal.examples.get_path('south.shp')
gdf = gpd.read_file(pth)
Once created, the geodataframe has a plot
method that can be called to create our first choropleth map. We will specify the column to classify and plot as BLK90
which is the percentage of the county population that is black. The classification scheme is set to Quantiles
, and the number of classes set to k=10
(declies):
[19]:
gdf.plot(column='BLK90', scheme='Quantiles', k=10, figsize=(16, 9))
[19]:
<matplotlib.axes._subplots.AxesSubplot at 0x7f5f21541710>
We can peak under the hood a bit and recreate the classification object that was used in the previous choropleth:
[20]:
q10 = mapclassify.Quantiles(gdf.BLK90,k=10)
q10
[20]:
Quantiles
Interval Count
----------------------
[ 0.00, 0.28] | 142
( 0.28, 1.54] | 141
( 1.54, 3.31] | 141
( 3.31, 5.72] | 141
( 5.72, 10.01] | 141
(10.01, 15.51] | 141
(15.51, 22.89] | 141
(22.89, 31.57] | 141
(31.57, 42.38] | 141
(42.38, 86.24] | 142
For quick, exploratory work, the classifier object has its own plot
method that takes a geodataframe as an argument:
[24]:
_ = q10.plot(gdf)
Back to working directly with the dataframe, we can toggle on the legend
:
[25]:
import matplotlib.pyplot as plt
f, ax = plt.subplots(1, figsize=(16, 9))
gdf.assign(cl=q10.yb).plot(column='cl', categorical=True, \
k=10, cmap='OrRd', linewidth=0.1, ax=ax, \
edgecolor='white', legend=True)
ax.set_axis_off()
plt.show()
Here we see the 10 classes, but without more specific information on the legend, the user has to know that 0 is the first declile and 9 the 10th. We also do not know the values that define these classes.
We can rectify this as follows:
[27]:
q10.get_legend_classes()
[27]:
['[ 0.00, 0.28]',
'( 0.28, 1.54]',
'( 1.54, 3.31]',
'( 3.31, 5.72]',
'( 5.72, 10.01]',
'(10.01, 15.51]',
'(15.51, 22.89]',
'(22.89, 31.57]',
'(31.57, 42.38]',
'(42.38, 86.24]']
[28]:
mapping = dict([(i,s) for i,s in enumerate(q10.get_legend_classes())])
[29]:
mapping
[29]:
{0: '[ 0.00, 0.28]',
1: '( 0.28, 1.54]',
2: '( 1.54, 3.31]',
3: '( 3.31, 5.72]',
4: '( 5.72, 10.01]',
5: '(10.01, 15.51]',
6: '(15.51, 22.89]',
7: '(22.89, 31.57]',
8: '(31.57, 42.38]',
9: '(42.38, 86.24]'}
[30]:
def replace_legend_items(legend, mapping):
for txt in legend.texts:
for k,v in mapping.items():
if txt.get_text() == str(k):
txt.set_text(v)
import matplotlib.pyplot as plt
f, ax = plt.subplots(1, figsize=(16, 9))
gdf.assign(cl=q10.yb).plot(column='cl', categorical=True, \
k=10, cmap='OrRd', linewidth=0.1, ax=ax, \
edgecolor='white', legend=True,
legend_kwds={'loc': 'lower right'})
ax.set_axis_off()
replace_legend_items(ax.get_legend(), mapping)
plt.show()
Interactive Exploration of Choropleth Classification¶
Next, we develop a small application that relies on mapclassify
together with palettable and ipywidgets to explore the choice of:
classification method
number of classes
colormap
[33]:
from mapclassify import color
import mapclassify
from ipywidgets import interact, Dropdown, RadioButtons, IntSlider, VBox, HBox, FloatSlider, Button, Label
def replace_legend_items(legend, mapping):
for txt in legend.texts:
for k,v in mapping.items():
if txt.get_text() == str(k):
txt.set_text(v)
k_classifiers = {
'equal_interval': mapclassify.EqualInterval,
'fisher_jenks': mapclassify.FisherJenks,
'jenks_caspall': mapclassify.JenksCaspall,
'jenks_caspall_forced': mapclassify.JenksCaspallForced,
'maximum_breaks': mapclassify.MaximumBreaks,
'natural_breaks': mapclassify.NaturalBreaks,
'quantiles': mapclassify.Quantiles,
}
def k_values(ctype, cmap):
k = list(mapclassify.color.colorbrewer.COLOR_MAPS[ctype][cmap].keys())
return list(map(int, k))
def update_map(method='quantiles', k=5, cmap='Blues'):
classifier = k_classifiers[method](gdf.BLK90, k=k)
mapping = dict([(i,s) for i,s in enumerate(classifier.get_legend_classes())])
#print(classifier)
f, ax = plt.subplots(1, figsize=(16, 9))
gdf.assign(cl=classifier.yb).plot(column='cl', categorical=True, \
k=k, cmap=cmap, linewidth=0.1, ax=ax, \
edgecolor='grey', legend=True, \
legend_kwds={'loc': 'lower right'})
ax.set_axis_off()
ax.set_title("Pct Black 1990")
replace_legend_items(ax.get_legend(), mapping)
plt.show()
data_type = RadioButtons(options=['Sequential', 'Diverging', 'Qualitative'])
bindings = {'Sequential': range(3,9+1),
'Diverging': range(3,11+1),
'Qualitative': range(3,12+1)}
cmap_bindings = {'Sequential': list(color.sequential.keys()),
'Diverging': list(color.diverging.keys()),
'Qualitative': list(color.qualitative.keys())}
class_val = Dropdown(options=bindings[data_type.value])
cmap_val = Dropdown(options=cmap_bindings[data_type.value])
def type_change(change):
class_val.options = bindings[change['new']]
cmap_val.options = cmap_bindings[change['new']]
def cmap_change(change):
cmap=change['new']
ctype = data_type.value
k = k_values(ctype, cmap)
class_val.options = k
data_type.observe(type_change, names=['value'])
cmap_val.observe(cmap_change, names=['value'])
from ipywidgets import Output, Tab
out = Output()
t = Tab()
t.children = [out]
#t
# In this case, the interact function must be defined after the conditions stated above...
# therefore, the k now depends on the radio button
with out:
interact(update_map, method=list(k_classifiers.keys()), cmap=cmap_val, k = class_val)
display(VBox([data_type, out]))
Chainging the type of colormap (sequential, diverging, qualitative) will update the options for the available color maps (cmap
). Changining any of the values using the dropdowns will update the classification and the resulting choropleth map.
It is important to note that the example variable is best portrayed with the sequential colormaps. The other two types of colormaps are included for demonstration purposes only.


labeled
by None at 2023-04-27 16:32:46.In looking at the data I found that the batch was successfully synchronized. So it's no longer blocking work.
related to https://github.com/pulibrary/princeton_ansible/issues/2603?
labeled
by None at 2023-04-27 16:32:55.labeled
by None at 2023-04-27 16:33:28.renamed
by None at 2023-04-27 17:15:33.labeled
by Christina Chortaria at 2023-04-27 20:58:46.assigned
by Jane Sandberg at 2023-04-26 22:06:35.head_ref_force_pushed
by esmé cowles at 2023-04-27 17:40:52.ready_for_review
by esmé cowles at 2023-04-27 17:41:12.referenced
by esmé cowles at 2023-04-27 17:41:19.merged
by esmé cowles at 2023-04-27 17:41:19.closed
by esmé cowles at 2023-04-27 17:41:19.head_ref_deleted
by esmé cowles at 2023-04-27 17:41:22.referenced
by Max Kadel at 2023-04-27 16:48:01.merged
by Max Kadel at 2023-04-27 16:48:01.closed
by Max Kadel at 2023-04-27 16:48:01.head_ref_deleted
by Max Kadel at 2023-04-27 16:48:02.referenced
by Jane Sandberg at 2023-04-27 18:15:36.merged
by Jane Sandberg at 2023-04-27 18:15:37.closed
by Jane Sandberg at 2023-04-27 18:15:37.head_ref_deleted
by Jane Sandberg at 2023-04-27 18:15:38.referenced
by Christina Chortaria at 2023-04-27 18:35:38.merged
by Christina Chortaria at 2023-04-27 18:35:38.closed
by Christina Chortaria at 2023-04-27 18:35:38.head_ref_deleted
by Christina Chortaria at 2023-04-27 18:35:39.referenced
by Jane Sandberg at 2023-04-27 18:36:35.merged
by Jane Sandberg at 2023-04-27 18:36:35.closed
by Jane Sandberg at 2023-04-27 18:36:35.head_ref_deleted
by Jane Sandberg at 2023-04-27 18:36:36.referenced
by Jane Sandberg at 2023-04-27 18:46:20.merged
by Jane Sandberg at 2023-04-27 18:46:20.closed
by Jane Sandberg at 2023-04-27 18:46:21.head_ref_deleted
by Jane Sandberg at 2023-04-27 18:46:21.referenced
by Christina Chortaria at 2023-04-27 18:48:56.merged
by Christina Chortaria at 2023-04-27 18:48:56.closed
by Christina Chortaria at 2023-04-27 18:48:56.head_ref_deleted
by Christina Chortaria at 2023-04-27 18:48:57.assigned
by Jane Sandberg at 2023-04-27 18:55:26.assigned
by Christina Chortaria at 2023-04-27 18:55:26.head_ref_force_pushed
by None at 2023-04-27 18:01:57.review_dismissed
by None at 2023-04-27 18:03:04.referenced
by None at 2023-04-27 18:03:17.merged
by None at 2023-04-27 18:03:17.closed
by None at 2023-04-27 18:03:17.head_ref_deleted
by None at 2023-04-27 18:03:18.mentioned
by esmé cowles at 2023-04-27 19:58:24.subscribed
by esmé cowles at 2023-04-27 19:58:24.I don't know that this is workable, is it?
closed
by James R. Griffin III at 2023-04-27 14:03:05.labeled
by James R. Griffin III at 2023-04-27 17:41:40.assigned
by James R. Griffin III at 2023-04-27 17:41:40.See 5734-vite for a start. lux and local vue seem to work. Viewer does not.
assigned
by Shaun Ellis at 2023-04-27 17:08:48.referenced
by Shaun Ellis at 2023-04-27 18:02:26.Recent occurrence definitely retried -- I can see the 2nd try in the log.
closed
by None at 2023-04-27 17:46:13.oops issue not needed
labeled
by Trey Pendragon at 2023-04-27 17:50:17.labeled
by Trey Pendragon at 2023-04-27 17:50:17.closed
by None at 2023-04-27 17:52:58.labeled
by Trey Pendragon at 2023-04-27 20:08:43.labeled
by Trey Pendragon at 2023-04-27 20:08:43.renamed
by None at 2023-04-27 20:09:26.labeled
by Trey Pendragon at 2023-04-27 20:18:53.labeled
by Trey Pendragon at 2023-04-27 20:18:53.renamed
by None at 2023-04-27 20:19:07.mentioned
by Vagif Abilov at 2023-04-27 20:19:14.subscribed
by Vagif Abilov at 2023-04-27 20:19:14.mentioned
by Ivan Dyachkov at 2023-04-27 20:19:14.subscribed
by Ivan Dyachkov at 2023-04-27 20:19:14.renamed
by None at 2023-04-27 20:21:06.Work toward resolving this issue was done on the 5495-4up-page-numbering branch, which disables two-up numbering to test four-up numbering. Potential tests were scrapped for code clarity, and work still needs to be made toward converting the TwoUp field away from a boolean to take multiple values (e.g. 0, 1, 2) and updating the UI with the label "N-up" instead of "Two Up".
The following screenshot demonstrates the formatting of the four-up numbering:
unassigned
by Thanya Begum at 2023-04-27 20:17:08.closed
by Thanya Begum at 2023-04-27 20:30:55.To close out this ticket we need to confirm if our code ignores updates patrons who appear in the Person feed with empty or nil expiration dates.
renamed
by Kevin Reiss at 2023-04-27 13:06:39.The most recent version of these CSVs need to be public (so that the Library Web site can fetch it). We could add something to an existing process to move the CSVs that are no longer needed to the temporary directory, which is already being weeded on a regular schedule. Or change where we are saving it to.
Work in progress https://github.com/pulibrary/lib_jobs/tree/submit_collection_1
labeled
by Christina Chortaria at 2023-04-27 20:57:42.labeled
by Christina Chortaria at 2023-04-27 20:59:24.I have been able to reproduce this by unpublishing and trying to republish issue 17 in production. The issue is successfully unpublished but triggers a 500 error in the browser, and the issue can be republished successfully, but the articles are not visible in the issue.
Here is the error from Apache:
[Thu Apr 27 18:24:22.427032 2023] [php7:error] [pid 31124] [client <IP_ADDRESS>:39742] PHP Fatal error: Uncaught PDOException: SQLSTATE[42P10]: Invalid column reference: 7 ERROR: there is no unique or exclusion constraint matching the ON CONFLICT specification in /var/www/ojs-3.3.0-8/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php:115\n
Stack trace:\n
#0 /var/www/ojs-3.3.0-8/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php(115): PDOStatement->execute()\n
#1 /var/www/ojs-3.3.0-8/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(489): Doctrine\\DBAL\\Driver\\PDOStatement->execute()\n
#2 /var/www/ojs-3.3.0-8/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(664): Illuminate\\Database\\Connection->Illuminate\\Database\\{closure}()\n
#3 /var/www/ojs-3.3.0-8/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(631): Illuminate\\Database\\Connection->runQueryCallback()\n
#4 /var/www/ojs-3.3.0-8/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php(496): Illuminate\\Database\\Connection->run() in /var/www/ojs-3.3.0-8/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 671, referer: https://openpublishing.princeton.edu/index.php/pjpf/manageIssues
This appears to be the same or a similar issue - https://forum.pkp.sfu.ca/t/invalid-column-reference-7-error-there-is-no-unique-or-exclusion-constraint-matching-the-on-conflict-specification/70199
Applying this patch manually addressed the issue in production. I was able to successfully unpublish/publish Issue 17 and 16 (both of which would not publish before) and unpublish/republish issue 27 (which was functioning normally already).
It appears this code has been updated in OJS 3.3.0-14; we are currently running OJS 3.3.0-8 in staging and production. I will next attempt to recreate this issue in OJS 3.3.0-8 on staging and apply a fix to the playbook in princeton_ansible, then test on staging.
https://docs.google.com/document/d/1Uu_7JOljjPZ_g0LxYvvCwSpn9Z_EMt4Vbnh_qxFUA1M/edit started this document to track down the different request options and understand the flow better.
closing as we have actually removed this Gem already.
closed
by Kevin Reiss at 2023-04-27 15:44:50.labeled
by Kevin Reiss at 2023-04-27 15:46:47.labeled
by Kevin Reiss at 2023-04-27 15:59:32.labeled
by Kevin Reiss at 2023-04-27 15:59:32.labeled
by Kevin Reiss at 2023-04-27 16:00:16.unlabeled
by Kevin Reiss at 2023-04-27 16:00:20.assigned
by Max Kadel at 2023-04-27 17:40:06.To get a sense of the scale of the issue we are facing here asked for some fresh data on holdings with many items:
https://github.com/PrincetonUniversityLibrary/alma-config/issues/456
Update: Approximately 2,700 holdings have greater than 100 items. 68 greater than 1000, 202 greater than 500.
assigned
by Jane Sandberg at 2023-04-26 22:04:12.unassigned
by Jane Sandberg at 2023-04-26 22:06:18.renamed
by Kevin Reiss at 2023-04-27 13:08:27.labeled
by Kevin Reiss at 2023-04-27 13:08:38.Hello we discussed this at our weekly check-in for OL issues today. There is a prospect to bring bibliographic level data for the constituent records into the Aeon request.
So I think we could extract following fields reliably: ItemAuthor, ItemTitle, ItemSubTitle, ItemDate, ItemEdition, ItemISxN, ReferenceNumber.
I'm not sure how we'd extract the other data from a constituent record the values for ItemVolume, ItemIssue, ItemPages, ItemNumber since those are at the holding or item level data which only exist under a host record. I'm not exactly sure what ItemCitation is in this context.
Possible Implementation:
Constituent records like<PHONE_NUMBER>3506421 have a a data attribute attached to the html div with an id value of main-content:
data-host-id='["99125092613506421"]'
Currently we use this value as the mms ID to utilize when making an availability call to get the holding and item availability status of the host record from Alma. We could also use this to possible create a hash of constituent bibliographic level parameters taken from the solr document to pass over to the request form that can be used to override values from the host record that would otherwise be submitted to another system like Aeon.
Coverage: 95.299% (+0.02%) from 95.282% when pulling 7be948f32daf98a90c76f345a9b3c08e055e5fc3 on 3275-call-number-font into 1d1cc41068ad3d8681e560a94fe8dc2e00ed1c8b on main.
Coverage: 95.318% (+0.04%) from 95.282% when pulling 8042e157678e448821ec566b9873239d39e59ce5 on 3523purgebookmarks_solr into 1d1cc41068ad3d8681e560a94fe8dc2e00ed1c8b on main.
head_ref_force_pushed
by Max Kadel at 2023-04-27 16:31:34.review_requested
by Max Kadel at 2023-04-27 16:32:55.This was a DNS issue. I've made the dev loadbalancer use a fixed lease.
closed
by Francis Kayiwa at 2023-04-27 12:29:31.assigned
by None at 2023-04-27 12:38:05.referenced
by Bess Sadler at 2023-04-27 13:39:39.merged
by Bess Sadler at 2023-04-27 13:39:39.closed
by Bess Sadler at 2023-04-27 13:39:40.head_ref_deleted
by Bess Sadler at 2023-04-27 13:39:41.closed
by Bess Sadler at 2023-04-27 13:39:41.referenced
by Bess Sadler at 2023-04-27 13:39:41.Of possible use for reference:
assigned
by Bess Sadler at 2023-04-27 13:59:40.ready_for_review
by James R. Griffin III at 2023-04-27 14:02:13.head_ref_force_pushed
by James R. Griffin III at 2023-04-27 15:22:01.labeled
by None at 2023-04-27 15:32:19.ready_for_review
by None at 2023-04-27 18:11:46.renamed
by Bess Sadler at 2023-04-27 18:17:37.review_dismissed
by None at 2023-04-27 18:21:22.head_ref_force_pushed
by None at 2023-04-27 18:21:22.head_ref_force_pushed
by James R. Griffin III at 2023-04-27 14:04:36.head_ref_force_pushed
by James R. Griffin III at 2023-04-27 15:06:26.assigned
by James R. Griffin III at 2023-04-27 19:40:11.I suspect that this may be blocked by #1084
I apologize that I didn't see there were changes made, then we talked, then certain clarifications were not written to this ticket. Please see my changes to the ticket and reach out if you have questions.
referenced
by Kate Lynch at 2023-04-27 14:06:26.merged
by Kate Lynch at 2023-04-27 14:06:26.closed
by Kate Lynch at 2023-04-27 14:06:26.head_ref_deleted
by Kate Lynch at 2023-04-27 14:06:27.I'm terrible with names @carolyncole would appreciate a name for these
We would like to keep each Redis/Sidekiq independent, so we are going to not create an external worker box.
mentioned
by None at 2023-04-27 14:05:08.subscribed
by None at 2023-04-27 14:05:08.closed
by None at 2023-04-27 14:33:15.can we change this to /var/cache/nginx
ready_for_review
by None at 2023-04-27 18:12:56.assigned
by Kate Lynch at 2023-04-27 19:11:58.assigned
by Kate Lynch at 2023-04-27 13:46:17.referenced
by Bess Sadler at 2023-04-27 13:49:21.merged
by Bess Sadler at 2023-04-27 13:49:21.closed
by Bess Sadler at 2023-04-27 13:49:21.head_ref_deleted
by Bess Sadler at 2023-04-27 13:49:22.closed
by Bess Sadler at 2023-04-27 13:49:23.renamed
by Kate Lynch at 2023-04-27 13:43:17.closed
by Kate Lynch at 2023-04-27 14:04:09.


INV 1
NAME
Inv — Make an inverted index from output of mkey.
SYNOPSIS
inv [−danpv] [-hn] [-i [u] name] outfile]
DESCRIPTION
The inv program computes the hash codes and writes the inverted files. It reads the output of mkey and writes the set of files described earlier in this section. It expects one argument, which is used as the base name for the three (or four) files to be written. Assuming an argument of Index (the default) the entry file is named Index.ia, the posting file Index.ib, the tag file Index.ic, and the key file (if present) index.id.
The inv programm recognize the following options:
- -a: Append the new keys to a previous set of inverted files, making new files if there is no old set using the same base name.
- -d: Write the optional key file. This is needed when you can not check for false drops by looking for the keys in the original inputs, i.e. when the key derivation procedure is complicated and the output keys are not words from the input files.
- -hn: The hash table size is n (default 997); n should be prime. Making n bigger saves search time and spends disk space.
- -i [u] name: Take input from file name, instead of the standard input; if u is present name is unlinked when the sort is started. Using this option permits the sort scratch space to overlap the disk space used for input keys.
- -n: Make a completely new set of inverted files, ignoring previous files.
- -p: Pipe into the sort program, rather than writing a temporary input file. This saves disk space and spends processor time.
- -v: Verbose mode; print a summary of the number of keys which finished indexing.
About half the time used in inv is in the contained sort. Assuming the sort is roughly linear, however, a guess at the total timing for inv is 250 keys per second. The space used is usually of more importance: the entry file uses four bytes per possible hash (note the -h option), and the tag file around 15-20 bytes per item indexed. Roughly, the posting file contains one item for each key instance and one item for each possible hash code; the items are two bytes long if the tag file is less than 65336 bytes long, and the items are four bytes wide if the tag file is greater than 65536 bytes long. To minimize storage, the hash tables should be over-full; for most of the files indexed in this way, there is no other real choice, since the entry file must fit in memory.
FILES
@BINDIR@/inv Executable. Assuming an argument of Index (the default): Index.ia Entry file. Index.ib Posting file. Index.ic Tag file. Index.id Key file.
LICENSE
The text of this manual page comes from Some application of Inverted Indexes in the UNIX System by M. E. Lesk, which is distributed under the bsd4 license. The inv software is distributed under the cddl license.
SEE ALSO
refer(1), referformat(7), mkey(1), hunt(1), and Some application of Inverted Indexes in the UNIX System by M. E. Lesk.
AUTHORS
M. E. Lesk. Modified by Pierre-Jean Fichet


| File | Statements | Branches | Functions | Lines | |||||
|---|---|---|---|---|---|---|---|---|---|
| packages/ | 98.41% | 62/63 | 62.5% | 5/8 | 100% | 3/3 | 98.39% | 61/62 | |
| packages/crud-cascader/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-checkbox/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-date/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-input-number/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-input/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-radio/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-rate/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-select/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-silder/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-switch/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-time/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-ueditor/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud-upload/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/crud/src/ | 37.5% | 117/312 | 39.07% | 59/151 | 18.71% | 26/139 | 23.81% | 60/252 | |
| packages/data-box/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/data-box/src/ | 40% | 2/5 | 0% | 0/4 | 0% | 0/6 | 25% | 1/4 | |
| packages/data-card/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/data-card/src/ | 25% | 2/8 | 0% | 0/10 | 0% | 0/9 | 14.29% | 1/7 | |
| packages/data-display/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/data-display/src/ | 33.33% | 2/6 | 0% | 0/6 | 0% | 0/6 | 20% | 1/5 | |
| packages/data-icons/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/data-icons/src/ | 28.57% | 2/7 | 0% | 0/6 | 0% | 0/6 | 16.67% | 1/6 | |
| packages/data-tabs/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/data-tabs/src/ | 40% | 2/5 | 0% | 0/4 | 0% | 0/4 | 25% | 1/4 | |
| packages/form-detail/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/form-detail/src/ | 20% | 2/10 | 0% | 0/4 | 0% | 0/7 | 11.11% | 1/9 | |
| packages/form-steps/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/form-steps/src/ | 8.33% | 3/36 | 0% | 0/6 | 0% | 0/18 | 5.71% | 2/35 | |
| packages/form-tabs/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/form-tabs/src/ | 12.5% | 3/24 | 0% | 0/4 | 0% | 0/14 | 8.7% | 2/23 | |
| packages/form/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/form/src/ | 8.86% | 7/79 | 11.76% | 4/34 | 4.17% | 1/24 | 4.17% | 3/72 | |
| packages/mixins/ | 57.02% | 65/114 | 30% | 15/50 | 38.46% | 15/39 | 59.62% | 62/104 | |
| packages/table-tree/ | 87.5% | 7/8 | 75% | 3/4 | 50% | 1/2 | 85.71% | 6/7 | |
| packages/table-tree/src/ | 27.08% | 13/48 | 14.29% | 7/49 | 14.29% | 2/14 | 18.6% | 8/43 | |
| packages/utils/ | 30.3% | 40/132 | 20.14% | 28/139 | 45.45% | 5/11 | 29.37% | 37/126 |


From:Buckley Karen To:Gossett Jeffrey C. ; Hillis Kimberly Sent:2017-01-11T04:40:46.0000000Z Subject:Please read: Interview Schedule , May 30th
All,
Each of you have received your interview schedule and resumes for tomorrow's interviews, taking place at 3 Allen Center, 17th Floor from 2.00 - 4.30/5.00. You have been broken down into four teams (as per your schedule). Please note that the candidate will be stationed in the office and you will rotate from office to office (all of which are adjacent).
Please ensure that you arrive promptly for your first interview at 2.00 pm and keep to 30 min time limt per interview. Each team will be assigned a coordinator to assist you through the event.
Red Team: Interviewing 5 Candidates Karen Buckley
Green Team: Interviewing 5 Candidates Todd Peikert
Purple Team Interviewing 6 Candidates Courtnie Parker
Blue Team Interviewing 6 Candidates Adrianne Engler
We look forward to seeing you tomorrow.
Rgds,
Karen.
***********
EDRM Enron Email Data Set has been produced in EML, PST and NSF format by ZL Technologies, Inc. This Data Set is licensed under a Creative Commons Attribution 3.0 United States License <http://creativecommons.org/licenses/by/3.0/us/> . To provide attribution, please cite to "ZL Technologies, Inc. (http://www.zlti.com)."
***********
California


This is a mock-up for a simple policy admin system.
This will demonstrate a typical integration scenario between Duck Creek and Rapport by setting-up a new customer and sending them a welcome pack through their preferred channel.
Lists documents that have been sent out to the customers along with the transaction they are related to
This will call the Williams Lea HP Exstream Interactive system to create one-off communications to send down the batch print route.
Connects to the Williams Lea CCM HUB for managing self-serve changes and retrieving document MI


tire[…] -
miles int64 -
engine{…} -
Rotate tires for optimal wear
pos int32 -
size string - Default: 15
worn boolean -
wear decimal64 -
flat boolean -
change{…} - Replace with all new tire
pos int32 -
size string - Default: 15
worn boolean -
wear decimal64 -
flat boolean -
Replace with all new tire
specs{…} -
horsepower int32 -


- Occurrences of the word Data in the post
- Number of comments in the post
- Upvotes received by the post
- Percentage of upvotes received by the post
On April 1st, many Reddit users created a new post in the r/dataisbeautiful subreddit with just the word Data in it.
During the day many redditors — sometimes the same users who created the post iself — replied with comments mentioning just the word Data.
There are 567 posts in the dataset.
Colored Y-axis ticks signal that the post contained an image.
You can order the data by one of these criteria:


This website is dedicated to teaching you about Fast Healthcare Interoperability Resources (FHIR) from a basic description of what FHIR is to building your first FHIR web application. Use the menubar and tabs above to navigate through the basic and advanced lessons. Hopefully you will find the website useful and informative. Feedback is always appreciated.
This website is intended to give users a basic understanding of what FHIR is and how it works. With that foundation, users will then be able to experiment with building a FHIR query and a basic web based FHIR application, "Hello Patient!". Advanced lessons will dive deeper into web application development with FHIR, including SMART on FHIR security with OAuth2, and leave users with a boilerplate template to begin experimenting on their own.
FHIR® is the registered trademark of HL7.


|
lwIP
2.1.3
Lightweight IP stack
|
#include "lwip/opt.h"
#include "lwip/nd6.h"
#include "lwip/priv/nd6_priv.h"
#include "lwip/prot/nd6.h"
#include "lwip/prot/icmp6.h"
#include "lwip/pbuf.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/ip6.h"
#include "lwip/ip6_addr.h"
#include "lwip/inet_chksum.h"
#include "lwip/netif.h"
#include "lwip/icmp6.h"
#include "lwip/mld6.h"
#include "lwip/dhcp6.h"
#include "lwip/ip.h"
#include "lwip/stats.h"
#include "lwip/dns.h"
#include <string.h>
#include "path/to/my/lwip_hooks.h"
Functions | |
| void | nd6_input (struct pbuf *p, struct netif *inp) |
| void | nd6_tmr (void) |
| void | nd6_clear_destination_cache (void) |
| struct netif * | nd6_find_route (const ip6_addr_t *ip6addr) |
| err_t | nd6_get_next_hop_addr_or_queue (struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr, const u8_t **hwaddrp) |
| u16_t | nd6_get_destination_mtu (const ip6_addr_t *ip6addr, struct netif *netif) |
| void | nd6_reachability_hint (const ip6_addr_t *ip6addr) |
| void | nd6_cleanup_netif (struct netif *netif) |
| void | nd6_adjust_mld_membership (struct netif *netif, s8_t addr_idx, u8_t new_state) |
| void | nd6_restart_netif (struct netif *netif) |
Neighbor discovery and stateless address autoconfiguration for IPv6. Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 (Address autoconfiguration).
| void nd6_adjust_mld_membership | ( | struct netif * | netif, |
| s8_t | addr_idx, | ||
| u8_t | new_state | ||
| ) |
The state of a local IPv6 address entry is about to change. If needed, join or leave the solicited-node multicast group for the address.
| netif | The netif that owns the address. |
| addr_idx | The index of the address. |
| new_state | The new (IP6_ADDR_) state for the address. |
| void nd6_cleanup_netif | ( | struct netif * | netif | ) |
Remove all prefix, neighbor_cache and router entries of the specified netif.
| netif | points to a network interface |
| void nd6_clear_destination_cache | ( | void | ) |
Clear the destination cache.
This operation may be necessary for consistency in the light of changing local addresses and/or use of the gateway hook.
| struct netif* nd6_find_route | ( | const ip6_addr_t * | ip6addr | ) |
Find a router-announced route to the given destination. This route may be based on an on-link prefix or a default router.
If a suitable route is found, the returned netif is guaranteed to be in a suitable state (up, link up) to be used for packet transmission.
| ip6addr | the destination IPv6 address |
| u16_t nd6_get_destination_mtu | ( | const ip6_addr_t * | ip6addr, |
| struct netif * | netif | ||
| ) |
Get the Path MTU for a destination.
| ip6addr | the destination address |
| netif | the netif on which the packet will be sent |
| err_t nd6_get_next_hop_addr_or_queue | ( | struct netif * | netif, |
| struct pbuf * | q, | ||
| const ip6_addr_t * | ip6addr, | ||
| const u8_t ** | hwaddrp | ||
| ) |
A packet is to be transmitted to a specific IPv6 destination on a specific interface. Check if we can find the hardware address of the next hop to use for the packet. If so, give the hardware address to the caller, which should use it to send the packet right away. Otherwise, enqueue the packet for later transmission while looking up the hardware address, if possible.
As such, this function returns one of three different possible results:
| netif | The lwIP network interface on which the IP packet will be sent. |
| q | The pbuf(s) containing the IP packet to be sent. |
| ip6addr | The destination IPv6 address of the packet. |
| hwaddrp | On success, filled with a pointer to a HW address or NULL (meaning the packet has been queued). |
Process an incoming neighbor discovery message
| p | the nd packet, p->payload pointing to the icmpv6 header |
| inp | the netif on which this packet was received |
| void nd6_reachability_hint | ( | const ip6_addr_t * | ip6addr | ) |
Provide the Neighbor discovery process with a hint that a destination is reachable. Called by tcp_receive when ACKs are received or sent (as per RFC). This is useful to avoid sending NS messages every 30 seconds.
| ip6addr | the destination address which is know to be reachable by an upper layer protocol (TCP) |
| void nd6_restart_netif | ( | struct netif * | netif | ) |
Netif was added, set up, or reconnected (link up)
| void nd6_tmr | ( | void | ) |
Periodic timer for Neighbor discovery functions:


---
title: Italy and Croatia, Summer 2016
start_date: 2016-06-01
end_date: 2016-06-16
cities:
- Rome
- Dubrovnik
- Split
- Venice
hero_image: travel/italy/rome-colosseum-close.jpg
featured_image: travel/italy/rome-colosseum-close-cover.jpg
image_roots:
- italy
- croatia
redirect_from:
- /italy/
- /croatia/
---
After I graduated from College, I set out on the longest trip of my life to date. Two months, visiting twenty-four cities in eight countries. It wasn't my first time in Europe, but it was my first time visiting each city in my trip.
In travelling for so long, my trip really felt like four smaller trips, each two weeks. The first, I spent with friends in Italy and Croatia, the second by myself in France and Spain, the third with a friend in the UK, and the last with my mom in Iceland.
My original plan was to start in Barcelona, and make my way north and east, but after finding an amazingly priced ticket from Boston to Rome, I flipped everything around.
Rome
Tourist Central
Rome was by far the most overwhelming city I visited, and it was appropriate to be my first stop. I was only there for a three days, but I managed to to pack in a crazy amount of sightseeing, shopping, and tasting in that time.
I spent my entire first day in Rome at the Vatican Museum and St. Peter's Basilica. Even so, there was plenty I didn't get to see. What I did see, though, was completely stunning.
{% include resimg.html src="travel/italy/rome-vatican-hallway.jpg" class="with-viewer" %}
The Vatican Museum was completely packed with tourists from all over.
The Vatican Museum is one big loop. If you go quickly, you could probably get through the whole thing in four or five hours, but if you take your time, it can easily take more than a day. For the most part, it was packed. However, there was an occasional side room or two that would be more calm.
The path leads through many different time periods and collections: sculpture, tapestry, cartography, and more. It's a stunning reminder of how powerful the Roman Empire was.
{% include resimg.html src="travel/italy/rome-vatican-table.jpg" class="with-viewer" %}
This table was just one of many stunning pieces of art along the path to the Sistine Chapel.
{% include resimg.html src="travel/italy/rome-vatican-globe.jpg" class="with-viewer" %}
A 1500s globe, covered in beautiful illustrations.
{% include resimg.html src="travel/italy/rome-vatican-goose.jpg" class="with-viewer" %}
These three sculptures are a great example of how well the curator positioned and grouped pieces to tell a story. The center sculpture is aptly named "Boy with Goose."
{% include resimg.html src="travel/italy/rome-vatican-sphere.jpg" class="with-viewer" %}
{% include resimg.html src="travel/italy/rome-peters-basilica.jpg" class="with-viewer" %}
Left: This amazing metal globe sits in the center of the Vatican Museum courtyard.
Right: The facade of St. Peter's Basilica, next to the Vatican.
I spent the majority of my time in Rome visiting all the touristy hot spots. With only a few days, that was all I had time for. (That and lots of pasta, mind you.) The Colosseum was really stunning, and is still is the centerpiece of Rome. Wandering around, I always ended up bumping back into it.
Although it's beautiful enough from the outside, I also got an opportunity to tour the inside in a nighttime tour. While it was probably overpriced, it was neat to get to go into the basement of the building and see where they kept the animals, food, and sets. I didn't know this before touring, but apparently the Romans had a knack for exotic sets for their battles and had even designed a contraption to raise combatants up through a trap door in the arena into battle. An ancient elevator!
{% include resimg.html src="travel/italy/rome-colosseum-dusk.jpg" class="with-viewer" %}
A view of the Colosseum at dusk.
{% include resimg.html src="travel/italy/rome-colosseum-close.jpg" class="with-viewer" %}
{% include resimg.html src="travel/italy/rome-colosseum-night.jpg" class="with-viewer" %}
Left: The Colosseum from up close.
Right: An interior view of the Colosseum during a nighttime tour.
When it comes to amazing architecture, the Colosseum isn't all Rome has. The Altar of the Fatherland and the Pantheon were both extremely impressive works of art.
{% include resimg.html src="travel/italy/rome-altar.jpg" class="with-viewer" %}
The Altar of the Fatherland sits in the center of Rome.
{% include resimg.html src="travel/italy/rome-pantheon.jpg" class="with-viewer" %}
A frontal view of the Pantheon, a temple with one massive circular room.
Dubrovnik
A Fortress on the Water
After visiting Rome, we headed across the Adriatic Sea to Croatia, where we visited Dubrovnik and Split. After Croatia I would actually fly back to Italy to see Venice, but it was actually more affordable to fly out of Italy and back in.
Dubrovnik was probably the biggest surprise of my entire trip. I didn't have very high expectations for Croatia. I hadn't heard much about it, but a few strong recommendations from friends put in on my list. That said, it was definitely a highlight of my trip: beautiful cliffsides, beaches, and towns, inexpensive food and amenities, and friendly people.
We spent most of our time in Dubrovnik, which is centered around the "Old Town," a pedestrian-only commercial district. The city sits right on the ocean, with tall stone walls built on top of the rocks.
{% include resimg.html src="travel/croatia/dubrovnik-airbnb.jpg" class="with-viewer" %}
The view of Dubrovnik from our Airbnb.
{% include resimg.html src="travel/croatia/dubrovnik-city.jpg" class="with-viewer" %}
A view of the Dubrovnik Old Town from the city walls.
{% include resimg.html src="travel/croatia/dubrovnik-walking.jpg" class="with-viewer" %}
{% include resimg.html src="travel/croatia/dubrovnik-friends.jpg" class="with-viewer" %}
Left: The Dubrovnik Old Town is pedestrian-only.
Right: The five of us on the Old Town walls.
The food in Dubrovnik was also amazing. After touring the Old Town walls, we ate an amazing meal of fresh fish down by the docks.
{% include resimg.html src="travel/croatia/dubrovnik-port.jpg" class="with-viewer" %}
We had dinner under the umbrellas by the Dubrovnik docks.
{% include resimg.html src="travel/croatia/dubrovnik-fish.jpg" class="with-viewer" %}
{% include resimg.html src="travel/croatia/dubrovnik-rice.jpg" class="with-viewer" %}
Left: The fresh fish in Dubrovnik was amazing.
Right: Dubrovnik's famous Black Risotto is super salty, but delicious!
A few days into our stay, we rented a private speedboat tour of the nearby islands. It sounds excessive, but the entire day (five hours plus time for lunch on Island restaurant) only ran us €50 each. Our guide picked us up at a nearby beach, and took us to several islands, where we got a chance to swim in caves, hike trails, and relax.
{% include resimg.html src="travel/croatia/dubrovnik-beach.jpg" class="with-viewer" %}
A View of the beach across the street from our Airbnb.
{% include resimg.html src="travel/croatia/dubrovnik-boat.jpg" class="with-viewer" %}
{% include resimg.html src="travel/croatia/dubrovnik-tower.jpg" class="with-viewer" %}
{% include resimg.html src="travel/croatia/dubrovnik-island.jpg" class="with-viewer" %}
Left: A view of the coast from the boat.

I would highly recommend visiting Dubrovnik to anyone interested. It wasn't as historic or magnificent as Rome or Venice, but it was beautiful and relaxing. After the intensity of my first stop it was exactly what I wanted.
{% include resimg.html src="travel/croatia/dubrovnik-walls.jpg" class="with-viewer" %}
On my last day, I walked up to the guard tower to get a full view of the city walls.
Split
A Beautiful City Three Hours North
After a few days in Dubrovnik, we rented a car and drove three hours up the coast to Split, a larger coastal city with another pedestrian-only Old Town. The drive was amazing. You can get to Split from Dubrovnik by highway in about 2.5 hours if you wanted, but it's worth every minute to take the D8, a parallel route that winds along the coast.
{% include resimg.html src="travel/croatia/split-drive.jpg" class="with-viewer" %}
A view of the Croatian beach from the D8 (the coastal highway).
{% include resimg.html src="travel/croatia/split-arch.jpg" class="with-viewer" %}
{% include resimg.html src="travel/croatia/split-tower.jpg" class="with-viewer" %}
Left: Four of us at the entrance to the Split Old Town.
Right: The tower in the Split town center.
{% include resimg.html src="travel/croatia/split-city.jpg" class="with-viewer" %}
{% include resimg.html src="travel/croatia/split-view.jpg" class="with-viewer" %}
Left: The Split Old Town on a cloudy day.
Right: Daniela and I shared a drink at a hilltop bar in Split.
Venice
Just Feet Away From Becoming Atlantis
Visiting Venice was amazing. It was certainly more touristy than Dubrovnik, but it lived up to the hype. It's small enough and dense enough that a good majority of my time there was spent wandering around the city, counting bridges, canals, and gelato shops.
We visited the tourist attractions: St. Mark's Square, Basilica, and Tower, but most of the time was spent exploring and wandering into smaller shops.
{% include resimg.html src="travel/italy/venice-canal.jpg" class="with-viewer" %}
A Venice canal. While many were even larger than this, most were quite narrow, barely two boats wide.
{% include resimg.html src="travel/italy/venice-view.jpg" class="with-viewer" %}
{% include resimg.html src="travel/italy/venice-port.jpg" class="with-viewer" %}
{% include resimg.html src="travel/italy/venice-rooftops.jpg" class="with-viewer" %}
Shots of Venice from the Campanile di San Marco. From this height, Venice's canals disappear.
{% include resimg.html src="travel/italy/venice-gondola.jpg" class="with-viewer" %}
A quintessential gondola-in-canal shot.
{% include resimg.html src="travel/italy/venice-canal-building.jpg" class="with-viewer" %}
So many of Venice's buildings are designed with prominent canal-side entrances
{% include resimg.html src="travel/italy/venice-acqua-alta.jpg" class="with-viewer" %}
{% include resimg.html src="travel/italy/venice-acqua-alta-books.jpg" class="with-viewer" %}
Left: Me at Acqua Alta Bookshop. When the canal floods, they just let the books get wet and dry themselves out.
Right: Daniela tries out their staircase made of wrecked books!
To get the full Venice experience, Daniela and I took a gondola ride. Even for just a half hour, it was completely worth it. Watching the gondolier duck under bridges and kick off walls was awesome.
{% include resimg.html src="travel/italy/venice-gondola-bridge.jpg" class="with-viewer" %}
{% include resimg.html src="travel/italy/venice-gondola-traffic.jpg" class="with-viewer" %}
Left: Our gondola barely fit under the bridges.
Right: Venice's version of rush-hour.
{% include resimg.html src="travel/italy/venice-motorboat.jpg" class="with-viewer" %}
Not everyone on the canals were gondolas. It remains a primary transit system for Venice.
{% include resimg.html src="travel/italy/venice-pasta.jpg" class="with-viewer" %}
{% include resimg.html src="travel/italy/venice-tea.jpg" class="with-viewer" %}
Left: Amazing pasta made while you wait at Del Moro's.
Right: We had tea and pastries standing at the counter in South Venice.
{% include resimg.html src="travel/italy/venice-old-bridge.jpg" class="with-viewer" %}
Me sitting on the oldest standing bridge in Venice.


| 程序包 | 说明 |
|---|---|
| com.relayrides.pushy.apns.util |
Contains classes for working with APNs tokens and payloads.
|
| 限定符和类型 | 方法和说明 |
|---|---|
ApnsPayloadBuilder |
ApnsPayloadBuilder.addCustomProperty(String key,
Object value)
Adds a custom property to the payload.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setAlertBody(String alertBody)
Sets the literal text of the alert message to be shown for the push notification.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setAlertTitle(String alertTitle)
Sets a short description of the notification purpose.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setBadgeNumber(Integer badgeNumber)
Sets the number to display as the badge of the icon of the application that receives the push notification.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setCategoryName(String categoryName)
Sets the name of the action category name for interactive remote notifications.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setContentAvailable(boolean contentAvailable)
Sets whether the payload under construction should contain a flag that indicates that new content is available
to be downloaded in the background by the receiving app.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setLaunchImageFileName(String launchImageFilename)
Sets the image to be shown when the receiving app launches in response to this push notification.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setLocalizedActionButtonKey(String localizedActionButtonKey)
Sets the key of a string in the receiving app's localized string list to be used as the label of the
"action" button if the push notification is displayed as an alert.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setLocalizedAlertMessage(String localizedAlertKey,
String[] alertArguments)
Sets the key of a message in the receiving app's localized string list to be shown for the push notification.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setLocalizedAlertTitle(String localizedAlertTitleKey,
String[] alertTitleArguments)
Sets the key of the title string in the receiving app's localized string list to be shown for the push
notification.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setShowActionButton(boolean showActionButton)
Sets whether an "action" button should be shown if the push notification is displayed as an alert.
|
ApnsPayloadBuilder |
ApnsPayloadBuilder.setSoundFileName(String soundFileName)
Sets the name of the sound file to play when the push notification is received.
|
Copyright © 2013–2018 RelayRides. All rights reserved.


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For the function \(f(x,y)=\cos (x+y)\,\exp (x-y)\) calculate \(\partial f/\partial x\), \(\partial f/\partial y\), \(\partial ^2f/ \partial x^2\), \(\partial ^2f/ \partial y^2\), \(\partial ^2f/ \partial x \partial y\), \(\partial ^2f/ \partial y \partial x\). Use your results to show that \({\partial ^2f/ \partial x^2}=-{\partial ^2f/ \partial y^2}\) and \({\partial ^2f/ \partial x \partial y}={\partial ^2f/ \partial y \partial x}\).
Let \(F(t)\) be the value of the function \(f(x,y,z)=\cos (xy)\,z\) restricted to the helix \(x=\cos (t)\), \(y=\sin (t)\) , \(z=t\) which is parametrised by \(t\) and \(-\infty <t<\infty\). Calculate \(dF/ dt\) as a function of \(t\) (i) directly by substituting the equations of the helix into \(f(x,y,z)\) to calculate \(F(t)\) as a function of \(t\) and then differentiating, and (ii) using the chain rule. Note how similar these approaches are.
If \({\bf a}= \sin 2t\,{\bf e_1}+ e^t\, {\bf e_2}-(t^3-5t)\, {\bf e_3}\), find
(a) \(d{\bf a}/dt\), (b) \(||d{\bf a}/dt||\), (c) \(d^2 {\bf a}/dt^2\), (d) \(||d^2 {\bf a}/dt^2||\), all at \(t=0\).
Find a unit vector tangent to the space curve \(x=t^3, y=t, z=t^2\) at \(t=2\).
Use the chain rule to calculate \(df/dt\) when \(f({\bf x}\,)=\exp (-||{\bf x}\,||^2)\) is restricted to the curves:
\(\qquad {\bf x}\,={\bf e_1}\log t+{\bf e_2}t \log t +{\bf e_3}t\),
\(\qquad (x,y,z)=( \cosh t , \sinh t, 0)\).
Show that the curve \(C\), given as points \(\underline{x}(s) = \left(\sin(s/\sqrt{2}),\cos(s/\sqrt{2}),s/\sqrt{2}\right),\) is the arc-length parameterisation of a helix, that is that \(\left|\frac{d\underline{x}}{ds}\right|=1 \quad \forall s\).
Describe the curve \(\gamma: \underline{x}(t) = (2t+1, t-3, 6 -2t)\). Find the arc-length parameterisation of \(\gamma\), that is, re-parameterise the curve in terms of a parameter \(s\), such that \(\left|\frac{d\underline{x}(s)}{ds}\right| = 1 \ \forall s\).
Harder: Let t denote the unit tangent vector to a space curve \({\bf a}={\bf a}(s)\) in \(\mathbb{R}^3\), where \({\bf a}(s)\) is assumed differentiable, and where \(s\) measures the arclength from some fixed point on the curve. Define the unit vector \({\bf n}= \frac{1}{\kappa} \frac{d {\bf t}}{ds}\), where \(\kappa\) is a scalar. Also define \({\bf b}= {\bf t} \times {\bf n}\) as the unit binormal vector to the space curve.
By considering the derivative of the product \({\bf t}.{\bf t}\), show that the the 3 vectors \({\bf t},{\bf n},{\bf b}\) form an orthonormal basis of \(\mathbb{R}^3\).
Hence, prove that \[\frac{d {\bf b}}{ds}=-\tau {\bf n},~~~{\rm and}~~~ \frac{d {\bf n}}{ds}=\tau {\bf b}- \kappa {\bf t},\] where \(\tau\) is some real constant.
These formulae are of fundamental importance in differential geometry. They involve the curvature \(\kappa\) and the torsion \(\tau\). The reciprocals of these are the radius of curvature (\(\rho=\frac{1}{\kappa}\)) and the radius of torsion (\(\sigma =\frac{1}{\tau}\)).
If \(f(x,y)=F(r,\theta)\) with \(x=r\cos\theta\) and \(y=r\sin\theta\), use the chain rule to compute \({\partial ^2f/ \partial x^2}+{\partial ^2f/ \partial y^2}\) in terms of partial \(r\)- and \(\theta\)- derivatives of \(F\), and hence find the general rotationally-symmetric solution to \({\partial ^2f/ \partial
x^2}+{\partial ^2f/ \partial y^2}=0\) in two dimensions which is non-singular away from the origin.
Suggestion: Begin by writing \(\partial r/\partial x\), \(\partial
r/\partial y\), \(\partial \theta/\partial x\) and \(\partial
\theta/\partial y\) as functions of \(r\) and \(\theta\).


Fyle Accounting Integrations
{% csrf_token %}
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[gecode-users] Problems on source tree generated by "make dist"
Guido Tack
tack at gecode.org
Thu Oct 4 01:20:49 CEST 2012
Yes, the dist target is obsolete (I think it hasn't been working for quite a while). I removed the target from the svn trunk.
Cheers,
Guido
On 03/10/2012, at 11:52 PM, Christian Schulte <cschulte at kth.se> wrote:
> I think the dist target is obsolete (Guido: Is it really?). It is safe to
> just use the stuff from the svn directly (with svn export). That's how we
> build the source packages we distribute.
>
> Cheers
> Christian
>
> --
> Christian Schulte, www.ict.kth.se/~cschulte/
>
>
> -----Original Message-----
> From: users-bounces at gecode.org [mailto:users-bounces at gecode.org] On Behalf
> Of Andrea Pretto
> Sent: Wednesday, October 03, 2012 3:46 PM
> To: users at gecode.org list
> Subject: [gecode-users] Problems on source tree generated by "make dist"
>
> Hi,
>
> I'm trying to create the .tar.gz dist file using "make dist" (from
> release-2.7.3 downloaded from svn)
> I guess there are missing files in the generated .tar.gz, cause I get this:
>
> config.status: creating Makefile
> config.status: error: cannot find input file: `tools/flatzinc/mzn-gecode.in'
>
> Maybe something is missing from the autotools config stuff.
>
> Cheers.
>
> _______________________________________________
> Gecode users mailing list
> users at gecode.org
> https://www.gecode.org/mailman/listinfo/gecode-users
>
>
> _______________________________________________
> Gecode users mailing list
> users at gecode.org
> https://www.gecode.org/mailman/listinfo/gecode-users
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- Week 1 A recap of the main takeaways from my first week at DBC
- Week 3 CSS: Classes vs IDs
- Week 4 Hashes vs Arrays
- Week 5 Enumerable Methods: #map
- Week 6 Ruby Classes
- Week 7 Ruby vs JavaScript: Looping
- Week 8A High-Level Description of How the Internet Works


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Put on a Happy face
The pain itself is important, but the pain is enhanced by the adipiscing process, but I give it some time to cut it down so that I do some great pain and sorrow. In order for the least to come, what of ours to exercise any school of employment except to achieve the objectives from that comma.


- Somebody from NYUAD
"It is about everything and about nothing at the same time. Beatiful stuff. Watch it with your loved ones, because this film can get you even more closer"- Totally Reliable Critic
MINNIE MOUSE
"Nouf", Slow Motion film
CARTON DUDE
"Oyungerel", Funny Music
DR SEUSS
"Prince", Visual Effects
CLASSIC GUIDE
"Cheena", The Editor
There is no footage from the shooting, but we present to you the uncut version of the film! Without slow motion, funny music, visual effects and editing!
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The Final Frontier
When I was young, I was very interested in space movies and TV series like Star Trek. So much so that my dream job was to become an astronaut and explore space! I had a great interest for learning more about it, and was always excited to watch videos and study it in Physics classes. I think the infinite possibilities is what excites me the most when I think about space exploration. Expanding and exploring the vast unknown. Although I doubt it will entirely solved in my lifetime, I do hope and believe that one day we will be able to travel across our solar system, just like taking a flight across the world.


Youtube Playlist Randomizer
Shuffles together public YouTube playlists (and not just the first 200 videos).
Playlists to shuffle (one per line):
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{% extends 'Home/index.html' %} {% load static %} {% block content %}
This website was developed as an initiative to explore the functions of Django. Being someone who is interested in ML and AI, I thought why not combine the both to provide users an immersive experience.
Tech enthusiast
Just a student from India, who's into programming, specifically interested in Machine Learning and Artificial Intelligence.


This command declares the given symbol to be an attribute which can take on multiple values. The optional n is an integer (>1) indicating an upper limit on the number of expected values that will appear for an attribute. If n is not specified, the value 10 is used for each declared multi-attribute. More informed values will tend to result in greater efficiency.
This command is used only to provide hints to the production condition reorderer so it can produce better condition orderings. Better orderings enable the Rete network to run faster. This command has no effect on the actual contents of working memory and most users needn't use this at all.
Note that multi-attributes declarations must be made before


Whelan ready for ‘last big night’ with Republic
The midfielder thought his international career was over.
Glenn Whelan is treating the Republic of Ireland’s Euro 2020 shoot-out with Denmark is if it is his last big game.
The 35-year-old Hearts midfielder thought his international career had drawn to a close during the latter part of Martin O’Neill’s reign as manager, but he has returned under Mick McCarthy to establish himself in the team once again.
However, with his 36th birthday fast approaching in January, he knows he has to savour every last minute he has left wearing the green shirt of Ireland and Monday night’s quest for qualification could be as big as it gets.
Whelan said: “This is what we want, this is why we’re here. This is why we rock up for friendlies when you could be on the beach having four or five days off. This is why you play for your country, to play in these games.
“There are kids out there who are dreaming of playing for Ireland. It could be the last big night for me and I’m going to cherish it and enjoy it as much as I can, even though it’s a big game.
“For me to get a second bite at the cherry as it is – it was taken away from me, I was never going to play for my country again and now I’ll, please God, get picked tomorrow to play in possibly one of the biggest games that Ireland have played in.
“For me I’m going to cherish it, take it on board. Although it’s nerve-wracking and it’ll be tight, I’m going to enjoy it as much as I can.”
It will be a big night too for central defender Shane Duffy, who will captain the Republic in the absence of the suspended Seamus Coleman.
Duffy said: “It’s a huge honour. To even play for your country is a massive milestone in your career and to lead the boys out, hopefully I’ll take it in my stride and won’t let it affect me.
“I’m excited for it, my family will be proud and I’ll be proud as well. But the main objective is to go out there and just play the game and try and get the win.”
That is something Ireland have not managed in their five previous encounters with the Danes over a two-year period, although four draws have been overshadowed by the 5-1 thumping in Dublin which cost Duffy and his team-mates a trip to the 2018 World Cup finals.
The Brighton defender said: “Obviously you don’t forget about a night like that. It’s a low point in our careers for most of us who played on the night, but football moves on quickly and we have another chance.
“It’s a different team, a different manager and we are all excited for it and positive that we can get the result.”


--- layout: post title: 'Google Analytics Tip: Use Advanced Segments' date: 2010-09-24 20:26:11.000000000 +01:00 type: post published: true status: publish categories: - analytics tags: - analytics - google analytics meta: _topsy_cache_timestamp: '1299668621' _topsy_long_url: /2010/09/24/google-analytics-tip-use-advanced-segments/ topsy_short_url: http://bit.ly/bjlbCA tmac_last_id: '618797389646659584' author: David Simpson excerpt_separator: ---
I've said it before, but I'll say it again — I like to #measure. Google Analytics has a great feature called Advanced Segments. Using this feature, you can easily show a subset of data.
One of the ways I use advanced segments is to categorise traffic into user types. It works really well and the great thing is that any advanced segment you create, you can also share with other Google Analytics users.
The links below are examples of some advanced segments I created for the University of Nottingham. If they seem helpful to you, feel free to use them as part of your Google Analytics reporting activity. To use them, simply login to Google Analytics and then click on the links below.
Here's a nice tutorial video from GoogleBusiness on how to create and use your own custom advanced segments:


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~/Library/LaunchAgents
/System/Library/LaunchAgents/
/System/Library/LaunchDaemons/
/Library/LaunchAgents/
/Library/LaunchDaemons/
__Running `launchctl list` show you what launch scripts are currently loaded.__
defaults write com.apple.finder CreateDesktop -bool false
killall Finder
defaults write com.apple.dock single-app -bool TRUE
killall Dock
defaults delete com.apple.dock single-app
killall Dock
killall -HUP mDNSResponder # 10.8+
dscacheutil -flushcache # 10.7 below
mdutil -a -i off # disable indexing for all volumes
mdutil -i off MOUNT_POINT # disable for specific volume
touch FOLDER/.metadata_never_index # disable for FOLDER
sudo networksetup -setsocksfirewallproxystate Wi-Fi off
sudo networksetup -setsocksfirewallproxystate Ethernet off
sudo networksetup -setsocksfirewallproxy Wi-Fi <IP_ADDRESS> 9999
sudo networksetup -setsocksfirewallproxy Ethernet <IP_ADDRESS> 9999
sudo networksetup -setsocksfirewallproxystate Wi-Fi on
sudo networksetup -setsocksfirewallproxystate Ethernet on
networksetup
- Configure network (ip, dns, proxy, etc)tmutil
- Configure Time Machine (enable/disable, exclude path, delete snapshots, etc)mdutil
- Manage Spotlight (enable/disable, exclude, etc)diskutil
- Control disk (format, eject, unmount, etc)launchctl
- Control running “agents”open
- open files and directories (man)textutil
- manipulate text files of various formats (man)pbcopy
/ pbpaste
- provide copying and pasting to the pasteboard (man)sips
- scriptable image processing system (man)mdfind
- finds files matching a given query (man)screencapture
- capture images from the screen (man)defaults
- access the Mac OS X user defaults system (man)/usr/libexec/airportd
scutil
INFO: brew
(link) is highly recommended utility


EventTimer()
Syntax
Timer = EventTimer()Description
After an event of type #PB_Event_Timer (returned by WindowEvent() or WaitWindowEvent()), use this function to determine which timer caused the event.
Parameters
None.
Return value
The same value that was used in AddWindowTimer() to create the timer.
See Also
AddWindowTimer()
Supported OS
All


{% extends 'base.html' %} {% block container %}
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