---
layout: default
title: Projects
---
{% for post in site.projects %}
{% if post.archive %}
{% elsif post.title != 'Projects' %}
{% if post.img %}
{% endif %}
{{post.title}}
{{post.description}}
{% endif %}
{% endfor %}
Projects sometimes cease to be active or become obsolete, others migrate institutions, and some sadly disappear. Below is an incomplete list of historical projects at Columbia University.
{% for post in site.projects %}
{% if post.archive %}
- {{post.title}}
{% endif %}
{% endfor %}


An application (id: {{.ClientID}}) requested consent to access resources on your behalf. The application wants access to:


Whole toolbar sticks, all the time
Whole toolbar sticks, all the time
First section sticks until second section collapses into it. Then it doesn't stick anymore and scrolls away.
Whole toolbar sticks and also collapses both sections into one.
TODO: does it have to be overlay?


Crystal Collector!
You will be given a random number at the start of the game.
There are four crystals below. By clicking on a crystal you will
add a specific amount of point to your total score.
You win the game by matching your total score to the random number,
you lose the game if your total score goes above the random number.
The value of each crystal is hidden from you until you click on it.
Each time the game starts, It will change the values of each crystal.
Your total score is:


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joint_trajectory_action_hr Module
Baxter RSDK Joint Trajectory Action Server
- Main changes from original Joint Trajectory Action Server:
- _goal_error , _error_threshold and _velocity_error are obtained from the trajectory action message
fixed check for _error_threshold (>0 and abs)
added check for _velocity_error
fixed double check of _goal_error at end of trajectory (sometimes trajectory would finish properly but the second check would make it fail)
uses last trajectory point for set_joint_position when stopping properly
(custom part) PID values are adjusted during trajectory execution: P=4 for 80% of trajectory (move fast), P=1 for remaining 20% (slow down to avoid oscillations), P=2 for the remaining time (big enough to reach goal)
-
class joint_trajectory_action_hr.JointTrajectoryActionServerHR(limb, rate=200.0)[source]
Bases: object


|
ECEP590 Final Project: Elma-Instant-Messenger
A simple instant messenger using Elma (C++). Elmaisaneventloopmanagerforembeddedsystems
|
EE590 Final Project - A simple instant messenger using Elma (C++)
State Machine diagram -
The IM communication can happen between two or more people. Only text based messeges. Connection will be established using TCP IP communication. RealTime Communication.


PHOTOS | Florida couple uses rescue puppies at wedding to raise awareness about adoption 12 Nov 2019, 10:22 A couple in Sarasota used rescue puppies in place of bouquets at their wedding and it was as cute as you expect. Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn Photo by: Wishing Well Barn


---
layout: layouts/post.njk
title: "The Female Engineers of Bustle on Getting the Job Done"
permalink: /bdg-engineers/
date: '2018-05-22'
comments: true
tags:
- Bustle
- women in tech
- teamwork
description: "A feature on Bustle, sponsored by Windows, on my some of my teammates and myself, where we discuss work, the team, and falling in love with coding."
link-out: https://www.bustle.com/p/the-female-engineers-of-bustle-on-work-team-falling-in-love-with-coding-9120066
---
If you are not redirected, please visit this think!


'Nigeria in need of transformational leadership’ - The Nation Newspaper
Austin Bello, Abuja
Nigeria is still in dire need of transformational and godly leadership and followership to reposition the country and holistically tackle corruption, Nigeria Fellowship of Evangelical Students (NIFS), has said.
It noted that for Nigeria to move forward, it must ensure that character, integrity and good work ethics are enshrined and enthroned into the fabrics of the nation.
NIFES National Director, Rex Onuh, said this during a media briefing ahead of the organisation’s 2019 National Missions Conference in Abuja.
He said: “Nigeria as a nation is still in dire need of transformational and godly leadership and followership to reposition the country and holistically tackle corruption.
“Again, we have to move forward as a nation. Character, integrity and work ethics must be enshrined and enthroned into the fabrics of our nation if we must be the envy of other nations in the world.
READ ALSO: Transformational leadership and ethics
“Our value system needs to change as a people and the rule of law has to reign in Nigeria. Citizens of this nation must be secured from all man-made catastrophes and disasters.
“The government needs to be more proactive with the security of lives and properties of its citizens. The educational sector where our supposed future leaders are being formed should receive proper attention both from government and private organisations.
He said that God’s expectation is that our work and involvement with the society in any form should impact lives positively and that such should be done with integrity and reference to God.
“It is lack of this understanding that has made us as a nation to nose-dive into corruption, injustice, insecurity, kidnapping and all forms of social vices that has bedeviled our nation.
“If we get it right with the youths, the future of our dear country would be secured and ultimately our society would be impacted positively.”


THE MATRIX
A Film Review by Brian Takeshita
Rating: *** out of ****
It's an interesting premise. Our reality is only real to us because it is what we perceive to be real. In truth, our entire existences are lived out in our minds as we are fed information through electronic inputs directly to our brains. What we see, what we do, everything around us is nothing more than a computer-generated construct interlinked with the minds of others through a vastly powerful artificial intelligence. Our bodies, severely atrophied, are kept alive for the sole purpose of generating heat and electrical energy for a dominating order of machines which control the planet.
The sci-fi realm has been waiting a little while for something new to come along. THE MATRIX isn't it - the idea of a war between man and a sentient computer network, a sham world, the ability to plug one's brain into a computer, has all been gleaned from such sources as THE TERMINATOR, DARK CITY, and a few Star Trek episodes (both classic and Next Generation). What is new is the ability to weave all of these various elements together and succeed in producing a film that is both entertaining as well as thought-provoking.
Keanu Reeves plays a computer whiz nicknamed Neo, who is plucked out of the artificial world (known as the matrix) by a group of renegade humans who are clandestinely fighting to expose the fallacy of the computer-generated existence and free humankind from the oppression of the machines. The group's leader, Morpheus (Laurence Fishburne), has chosen Neo because he believes Neo is "the one" who is destined to lead the attack against the artificial intelligence.
>From the beginning of the film, we are kept on our toes trying to figure things out. This, in a lesser movie would be annoying, but THE MATRIX presents itself in an intelligent manner which makes the puzzle rather interesting and even fun. What is reality? What is a sham? The film turns our very perception of life on its side. More than once, we are also presented with the question of whether we would rather know the harsh truth of reality, or live a life of relative bliss, oblivious to the true nature of our surroundings. As viewers, this is intriguing enough, so imagine what it would be like for Neo. And who to better play a bewildered person than Keanu Reeves?
Reeves, whom I've never really cared for as an actor, is competent in roles which require a lot of straightforwardness, and little subtlety. He was good in SPEED, for example, but laughably poor in A WALK IN THE CLOUDS. Neo is actually one of those roles which Reeves slips into rather nicely, so much of my expectation was happily for naught. In a couple of places, the script even capitalizes upon his wooden nature, and this is a heavy credit to writers/directors Andy and Larry Wachowski. I mean, since BILL AND TED'S EXCELLENT ADVENTURE, what movie could you say really "utilized" Keanu Reeves?
More interesting than Reeves is Fishburne, who's Morpheus nearly runs the gamut of emotions, and convincingly so. Very surprising for a sci-fi movie. Fishburne also maintains a certain demeanor about himself throughout, as if he always knows what to expect. This helps to further the aura of his character's proficiency and extensive knowledge.  Unfortunately, when Weaving speaks for more than a few sentences in a row, the nature of his character's speech pattern becomes a little more laughable than impressive. Carrie-Anne Moss plays Trinity, Morpheus's number one assistant who becomes somewhat of a love interest for Neo. Although her character is somewhat inconsistent, Moss nevertheless delivers an above par performance when Fishburne isn't in the picture.
There were few expenses spared when it comes to the special effects. Many methods of imagery are employed, from modeling to bluescreen to computer graphics. Of special note is the use of the "freeze and turn" effect where the entire scene is frozen, turned, then continued from a new angle. This is accomplished by using a large number of still cameras employed in a semi-circle, with motion picture cameras placed at the two ends. The motion cameras film the action, and at the appropriate moment all the still cameras fire at once. Place each still image in a film sequence and you get a nearly seamless transition from the first motion camera to the second. Pretty slick.
THE MATRIX drips with style. From the clothing to the music to the action, we're watching an exaggerated version of what we're used to. Much of it seems like the combination of two genres of the Hong Kong action film - there's a lot of Kung Fu, there's a lot of gunplay. When a character is letting go with an automatic weapon, much is made of the empty cartridges falling to the floor in slow motion. There's also the element of the Japanese action cartoon (called anime by aficionados), especially in the way the sequences are filmed in sweeping pans and emphasized actions through special effects. Combined, it's really like no live-action film I have ever seen.
The film is not without its faults. Some of the scenes and ideas are "borrowed" a little too liberally from other films, and one component of the ending is decidedly disappointing. Some of the lines are also pretty bad - in one instance, a supporting character incorrectly delivers a famous saying, and it wasn't meant to be a joke. However, these shortcomings detract little from what is an overall solid action sci-fi film that for once does more than merely entertain.
Review posted May 12, 1999
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


Simulation View¶
The Simulation View is a scatterplot, in which each point represents an ensemble member. The axes of the scatterplot are the canonical variables, aTX and bTY, which are labeled as Input Metavariable and Output Metavariable. The x and y coordinates of each point are weighted sums of that point’s input and output variable values, respectively. Because the values of the canonical variables differ for each canonical component, changing the selected component in the Correlation View changes the point coordinates, which are then re-rendered in the scatterplot. Comparing the scatterplots in Figure 23 and Figure 24, you can see how the point locations shift from a loose diagonal for CCA1, to a ball of points for CCA2. Given the low R2 and high p-value for CCA2, the scatterplot point placement visually reveals the poor quality of the result (all points would be on the diagonal in an ideal result).
Legend¶
To the right of the scatterplot is the Legend. The Legend is in its own view, which can be resized or closed altogether. The Legend displays information about the current color-coding variable, including its name, range of values, and the mapping between values and colors. The color palette is defined by the current theme (see Color Themes).
Color-Coding Points¶
The first time a model is rendered, the points are colored by their index number. There are three mechanisms for changing the variable that is used to do the color-coding: clicking on a variable in the Correlation View, clicking on the column header in the Variable Table, or selecting a variable from the Point Color dropdown list. Irrespective of the interface used, changing the variable selected for color mapping will lead to changes in all three views and the legend, including: highlighting the newly selected variable’s row in the bar chart, recoloring the scatterplot using the new variable’s values, coloring the cell backgrounds in its table column, returning the cell backgrounds of the previously selected variable’s column to its default color (green, lavender, or white depending on its type), and relabeling and redefining the value range in the Legend. Note that the table may include variables that are not present in the Correlation View, columns that are neither inputs nor outputs. These columns are drawn on the right end of the table against white backgrounds. These provide additional color-coding options (numeric variables only), however, the bar chart will not be highlighted because it only includes variables passed to CCA.
Selecting Points¶
Points in the scatterplot may be selected through several mechanisms. The simplest is to place the mouse cursor over a point and click the left mouse button. The selected point is redrawn in the plot with a larger radius, while simultaneously in the Variable Table, the row corresponding to the selected point is darkened and scrolled to be visible.
For groups of adjacent points that lie within a rectangular region, rubber banding can be used to draw a rectangle around the desired point set. Position the mouse at one corner of the region. Press the left mouse button down while simultaneously moving the mouse towards the opposite corner of the region. A yellow rectangle will be drawn between the location of the initial button-press and the mouse’s current position. Move the mouse until the rectangle encloses all the desired points, then release the mouse button to finish the selection.
Holding the control-key while selecting new points, either through clicking or rubber banding, will add these additional points to the previously selected set. Alternately, scatterplot points can be selected by picking rows in the Variable Table (see Simulation Selection).
Clicking in the background (not on any point) deselects all previously selected points.


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Test your memory and listening skills! Repeat the pattern you see and hear by pressing on the corresponding buttons.


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Participate in the design process of every feature you work on, from brainstorming to prototyping to reviews and fine tuning
Build small features independently and large ones collaboratively
Ensure a consistent user experience by standardizing UI components
Build both client side and server side scripting code in NodeJS, MongoDB and AngularJS
You are confortable working in small to medium size teams in a sprint based agile development environment
You have a strong grasp of Git and how to resolve problems that inevitably arise when collaborating
Its a huge bonus if you already know about the MEANJS stack and Ionic
Passionate about the little details that matter
Deeply technical with a strong background in computer science
Inquisitive with an intrinsic drive to learn and improve
We are growing rapidly at SmartWinnr. We release new features and improvements to our products regularly to improve how sales teams can best use our products to optimise their sales processes. The Product Marketing Specialist will manage these launches. You will be the lead in Marketing Operations.
Experience in a product marketing, or digital marketing role
You understand what channels to leverage to make a marketing launch successful
Deep understanding of marketing metrics
Ability to collaborate with key stakeholders to develop a marketing plan for a product launch
Comfortable editing content about technology, specifically product marketing content
B2B marketing experience
Experience in marketing SaaS based products
Passionate about working in emerging technologies
At SmartWinnr, we are building products that help to improve the effectiveness of enterprise sales teams. We work in the most happening of technologies. As a fresher you will work closely with our team of experts to build new features, architect and understand how customer's requiremets are translated into features.
You are a graduate in Computer Science or related fields
Passionate about learning new technologies
Prior experience working in Javascript frameworks
Its a huge bonus if you already know about the MEANJS stack and Ionic.


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Before Change
quasi_ids = map(map_fields, quasi_ids)
// Tell the API where to send a notification when the job is complete.
actions = [{"pub_sub": {"topic": "{}/topics/{}".format(parent, topic_id)}}]
// Configure risk analysis job
// Give the name of the numeric column to compute risk metrics for
After Change
dlp = google.cloud.dlp_v2.DlpServiceClient()
// Convert the project id into a full resource id.
topic = google.cloud.pubsub.PublisherClient.topic_path(project, topic_id)
parent = dlp.location_path(project, "global")
// Location info of the BigQuery table.
source_table = {


Comments
-
john
Created an attachment (id=45) Sample #1 of Synergy Advance (while "Not Responding")
-
john
Created an attachment (id=46) Sample #2 of Synergy Advance (prior to "Not Responding")
-
Greg Hurrell
Thanks for the report and the samples, John.
I am not sure how much can be done about this, given the size of the library. The parsing of the library occurs in a separate thread, but there is a part of the process which cannot be done in a background thread (the actual insertion of menu items into the menu) and must be done on the main thread. Your sample shows that the program is spending most of the time doing the insertions.
The next release has new code for inserting items into the menu; see this article:
http://wincent.com/a/about/wincent/weblog/archives/2005/08/big_menus_reall.php
I'm using a different API for inserting items into the menu. I don't know whether this will help, but once you've tested the new release let me know whether it makes a difference. I've done some testing and identified that there is lots of room for optimization in this API, and I've filed a bug report with Apple about it; basically: they call the API for the entire menu, even if it is thousands of items in size and only a small fraction of the menu will be visible on screen at any time. If they make a change to the API so that it only invokes the API for visible menu items then we'll see an absolutely massive speedup (and reduction in memory usage as well).
If it turns out that there's nothing that can be done to speed it up (probably because of the combination of it being a huge library AND it being AFP mounted) then you may have to simply turn off the offending menu items. I am working an a customization module that will allow you to remove/add/reorder items from the menu. You'll be able to get rid of whichever menu item is soaking up the CPU (probably the "Playlists" menu item).
-
john
Created an attachment (id=55) Sample of SA 0.4b2 while not responding to menu bar item
-
john
Added a sample of 0.4b2 while not responding to the initial use of the menu bar item. The good news is that after 60-90 seconds S.A. pulls out of not responding and goes back to a stable state with cpu usage within an acceptable range (3-10%), and subsequent uses of the menu bar item do not re-produce the extremely high cpu usage. Additionally I can now open the Artists submenu and flawlessly (no hiccups or nasty rendering glitches) scroll through 10,000+ artists.
-
Greg Hurrell
(From update of attachment 55) Correcting MIME type
-
Greg Hurrell
Thanks for attaching the new sample, John.
You can expect this to improve in the near future. CPU will always be high when churning through an extremely large library, but I should be able to remove the initial unresponsiveness while preparing the menu.
Bug #387 and bug #389 were the highest priorities, but now they are fixed and I'll get a new beta out within the next couple of days. Then I'll turn my attention to this bug. I was actually working on this before, then went on a nearly three month side trip re-writing the communications engine... hopefully it all means I'll have a rock-solid foundation upon which to layer new features.
-
Greg Hurrell
Changing assignment to reflect my new email address.
http://wincent.com/a/news/archives/2006/05/change_of_email.php
Add a comment
Comments are now closed for this issue.


As of version 1.3, RSS Bandit supports FeedDemon compatible Newspaper Views. This is a convenient method for reading multiple feed items at a time within the reading pane. It is especially suited for News feeds.
When clicking on a category or a feed in the Feed List, every unread item is displayed within the reading pane. Figure 1 below shows an example in which a category containing feeds from technology oriented news sites is selected. This example demonstrates the "Headlines" newspaper style.
Figure 1. Newspaper
view of a category using the Headlines style.
Figure 2 is an example of a single feed using the "Film" newspaper style.
Figure 2. Newspaper
view of a single feed using the Film style.
The style (aka formatter) used to display a feed can be configured globally, per category, and per feed.
Global Style Setting
The global
setting is in the Tools | Options dialog under the "Display"
tab (see figure 3).
Figure 3. Configuring
the global (default) style.
By checking "Use a custom formatter", you can select one of the available stylesheets. The style configured in this manner is used for any feed or categories in which a custom formatter is not specified.
Category Style Setting
Right
clicking on a category folder selecting "Properties..." brings
up the dialog as shown in figure 4. Click on the "Category"
tab to configure the Category style.
Figure 4. Configuring
the category style.
Feed Style Setting
Finally, by
right-clicking on a feed and bringing up the properties dialog, clicking
the "Display" tab will give you the dialog shown in figure 5.
This allows you to customize a formatter per site.
Figure 5. Configuring
a feed's style.
You'll notice there's an option to "Mark items as read on exiting category". Checking that can improve the Newspaper viewing experience as all items in the category are marked as read upon moving to the next category.
Our project is hosted at sourceforge.net provides RSS feeds to syndicate news related to RSS Bandit project. This is a great way to keep up with news and release downloads.


There are many ways you could choose to run Node-RED under Docker. This guide describe some of the ways you can do it.
It assumes you have some basic familiarity with Docker and the Docker Command Line.
We publish three tagged versions of the container to DockerHub:
latest
- uses official Node.JS v4 base image.slim
- uses Alpine Linux base image.rpi
- uses RPi-compatible base image.Using Alpine Linux reduces the built image size (~100MB vs ~700MB) but removes standard dependencies that are required for native module compilation. If you want to add modules with native dependencies, use the standard image or extend the slim image with the missing packages.
To run the latest
container:
docker run -it -p 1880:1880 --name mynodered nodered/node-red-docker
This command will download the nodered/node-red-docker
container from DockerHub
and run an instance of it with the name of mynodered
and with port 1880 exposed.
In the terminal window you will see Node-RED start. Once started you can then
browse to http://{host-ip}:1880
to access the editor.
Hit Ctrl-p
Ctrl-q
to detach from the container. This leaves it running in the
background.
To reattach to the container:
docker attach mynodered
To stop the container:
docker stop mynodered
To start the container:
docker start mynodered
Note: your flows will be stored in the file called flows.json
within the container. This can be customised by setting the FLOWS
environment parameter:
docker run -it -p 1880:1880 -e FLOWS=my_flows.json nodered/node-red-docker
Node.js runtime arguments can be passed to the container using an environment parameter (NODE_OPTIONS
). For example, to fix the heap size used by the Node.js garbage collector you would use the following command:
docker run -it -p 1880:1880 -e NODE_OPTIONS="--max_old_space_size=128" nodered/node-red-docker
The container uses the directory /data
as the user configuration directory. To
add additional nodes you can open shell into the container and run the appropriate
npm install
commands:
# Open a shell in the container
docker exec -it mynodered /bin/bash
# Once inside the container, npm install the nodes in /data
cd /data
npm install node-red-node-smooth
exit
# Restart the container to load the new nodes
docker stop mynodered
docker start mynodered
It is possible to mount the /data
path on an external volume:
docker run -it -p 1880:1880 -v ~/node-red-data:/data --name mynodered nodered/node-red-docker
This command mounts the host’s ~/node-red-data
directory as the user configuration directory inside the container.
Adding extra nodes to the container can then be accomplished by running npm install
on the host machine:
cd ~/node-red-data
npm install node-red-node-smooth
docker stop mynodered
docker start mynodered
Note: Modules with a native dependencies will be compiled on the host machine's architecture. These modules will not work inside the Node-RED container unless the architecture matches the container's base image. For native modules, it is recommended to install using a local shell or update the package.json and re-build.
The Dockerfiles for these containers are maintained here, each under its own branch.
To build your own version:
git clone https://github.com/node-red/node-red-docker.git
cd node-red-docker
# Build it with the desired tag
docker build -f <version>/Dockerfile -t mynodered:<tag> .
Creating a new Docker image, using the public Node-RED images as the base image, allows you to install extra nodes during the build process.
Create a file called Dockerfile
with the content:
FROM nodered/node-red-docker
RUN npm install node-red-node-wordpos
Run the following command to build the image:
docker build -t mynodered:<tag> .
That will create a Node-RED image that includes the wordpos
nodes.
Updating the base container image is as simple as
docker pull nodered/node-red-docker
docker stop mynodered
docker start mynodered
You can link containers “internally” within the Docker runtime by using the
--link
option.
For example, if you have a container that provides an MQTT broker container called mybroker
, you can run the Node-RED container with the link
parameter to join the
two:
docker run -it -p 1880:1880 --name mynodered --link mybroker:broker nodered/node-red-docker
This will make broker
a known hostname within the Node-RED container that can be
used to access the service within a flow, without having to expose it outside
of the Docker host.
[{"id":"190c0df7.e6f3f2","type":"mqtt-broker","broker":"broker","port":"1883","clientid":""},{"id":"37963300.c869cc","type":"mqtt in","name":"","topic":"test","broker":"190c0df7.e6f3f2","x":226,"y":244,"z":"f34f9922.0cb068","wires":[["802d92f9.7fd27"]]},{"id":"edad4162.1252c","type":"mqtt out","name":"","topic":"test","qos":"","retain":"","broker":"190c0df7.e6f3f2","x":453,"y":135,"z":"f34f9922.0cb068","wires":[]},{"id":"13d1cf31.ec2e31","type":"inject","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"x":226,"y":157,"z":"f34f9922.0cb068","wires":[["edad4162.1252c"]]},{"id":"802d92f9.7fd27","type":"debug","name":"","active":true,"console":"false","complete":"false","x":441,"y":261,"z":"f34f9922.0cb068","wires":[]}]


Joseph Cass
About Me
I’m an innovative and enthusiastic Computer Scientist who studied at the University of Durham from 2015-2019.
Born in Stockton-On-Tees, I moved to Durham to study in the field of computing, after discovering a genuine desire to better understand how technology works, and how it can be used for countless amazing things, from medical research to improving quality of life through efficiency and inter-connectivity.
Throughout my time studying, I’ve learned how the technology we use everyday functions, networked with some extremely talented individuals, and competed at levels of sport I never thought I’d be able to.
Referees
Mr David Raper
Position- Operations Director
Contact address- Wynyard Business Park Stockton-on-Tees, TS22 5FG
Mr Tim Selkirk
Position- A-level Maths and Further Maths teacher
Contact Address- Brinkburn Road, Hartlepool, TS25 5PF
Mrs Marie Russell
Position- Manager
Contact address- Middleton Grange shopping centre Hartlepool, TS24 7RR


Mini Project
2:- Calculator
In this project('Calculater'). We have displayed the ARITHMETIC OPERATORS
by using
1.HTML
2.CSS
3.JAVASCRIPT
This calculater projects shows the ARITHMETIC OPERATION WHICH ARE
1:-> '+'
2:-> '-'
3:-> '*'
4:-> '/'
CODE:-> HTML
JAVASCRIPT


About Me
Electrical & Computer Engineer
Hello,
My name is Irini Kanari. I have graduated from Democritus University of Thrace, Technical School from the Department of Electrical and Computer Engineering.
I have a Master of Engineering and my master's degree is 7.29. I have recommendations from the president of the Department and president of the Automatic Control Laboratory.
Computer Skills
If You Have Any Project In Your Mind ?
Contact me


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Flashcards
Instructions
Guess the preposition
Good luck!
Instructions
Guess the preposition
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Start


function ColorDifference(C1, C2: TColor32): TColor32;
Compute the absolute difference between C1 and C2. The resulting color components are clamped to the [0…255] range.
[See Also] ColorSub


A Walk on the Moon * * (out of * * * * )
Directed by Tony Goldwyn. Cast: Diane Lane, Viggo Mortensen, Anna Paquin, Liev Schreiber, Tovah Feldshuh, Lisa Jakub, Julie Kavner. 1999 - 106 minutes Rated R (for profanity, sex, and brief nudity). Reviewed April 25, 1999.
"A Walk on the Moon," actor Tony Goldwyn's directing debut, is similar in place and time to 1987's far superior "Dirty Dancing." Both are set in the nostalgic '60s, during the summer, in the Catskills, and feature a female protagonist finally able to come into her own. But while "Dirty Dancing" got me involved in the characters and the beautiful setting, "A Walk on the Moon" is a smaller, slighter, and less-involving drama.
Set during the crucial summer of '69 when man first walked on the moon and the infamous Woodstock took place (both of which are conveniently portrayed here), Pearl Kantrowitz (Diane Lane) is an unsatisfied 31-year-old woman who married her high school sweetheart, Marty (Liev Schreiber), when she was still a teenager and accidentally got pregnant. Despite having certain goals and dreams, Pearl and Marty both decided to take responsibility for their actions and be good parents. While on a summer-long vacation in the Catskills, Marty, a television repairman, is only able to come up on the weekends since there is a mad rush for t.v. sets due to the impending moon landing, leaving Pearl; her rebellious 14-year-old daughter, Alison (Anna Paquin), who is just discovering and getting involved in boys; her precocious 5-year-old son; and her children's grandmother (Tovah Feldshuh), to fend for themselves during the week. By chance, Pearl meets Walker Jerome (Viggo Mortensen), a travelling "blouse man" whom, to her utter surprise, she sees as a light at the end of a dark tunnel, and starts an affair with, therefore putting her marriage and children's trust into jeopardy.
"A Walk on the Moon" is an overall unsatisfying domestic drama that feels like it begins in mid-stream, without any proper introduction to the characters, and it took me the film's first hour to actually get into the story. Even then, with only 45 minutes to go, the characters themselves always seemed to be standing at a far distance from me, and it was difficult to understand the motives of the central character, Pearl. We are supposed to believe that she is taken aback by Walker, but he is never written as a fully developed character, but more of a symbol, and therefore the whole plotting comes off as a mere contrivance in order to give us a story of "self-discovery."
If anything, the performances certainly can't be faulted. Diane Lane, a wonderful actress who began a promising career in the early '80s with such films as "The Outsiders" and "Rumble Fish," before resorting to low-rent or underused roles, has finally been given her first substantially satisfying in recent years. Lane proves a sympathetic heroine, even when she is making some very numskull decisions that are difficult to understand. In what comes off as one of the few successes in an otherwise largely unrealized screenplay, by Pamela Gray, the character of Marty is portrayed as not simply the "husband," but a real person who is genuinely good, even when considering that he sacrificed his own life for his family, and Liev Schreiber is up to every challenge. Giving the film's most assured and poignant performance is Anna Paquin, already an Academy Award winner (for 1993's "The Piano"), and at 16, she has already become one of the best actresses of her respective generation. A subplot involving Paquin's character of Alison discovering romance for the first time is supposed to come off as a catalyst to Pearl's blossoming affair, but not nearly enough time is devoted to her. Paquin is given the best scenes, however, including a bravura one in which Alison confronts her mother concerning her affair, and another in which she has a loving, truthful conversation with her father. Viggo Mortensen is the one weak link in the central roles, but I suspect this is due to his underwritten role of the "blouse man." There is no room given for Mortensen to create a definite personality, and director Goldwyn unwisely chooses to add a bunch of pointless sex scenes to stand as character development. And the likely winner of best performance by an actress in an unseen role goes to Julie Kavner as the resort's P.A. announcer, who is constantly announcing things over the intercom, including even Alison's first period!
Regardless of the obvious low budget, the film verifiably recreates Woodstock in a breathtaking sequence in which, allegedly, 300 people were transformed into hundreds of thousands via computer digitization. It ends up being an anticlimax, though, and before we are given a chance to see it, the film hurriedly moves on to something else.
"A Walk on the Moon" unmistakably feels like a rough cut of a possibly good movie. There's a fulfilling one lurking around in there somewhere, but the film feels too rushed and, because of this, no emotional momentum is allowed to build up. I liked Pearl, and I liked Alison, and Marty, but I'd like them even more in a better overall film. Not only does the story in "A Walk on the Moon" feel like a plot device, but it is also tiresome and unoriginal. So many similar motion pictures have been made, and more successfully, that this one only pales in comparison. That's too bad, because, even though not alive during the decade, I do have a fondness for the '60s.
- Copyright 1999 by Dustin Putman Http://hometown.aol.com/FilmFan16/index.html
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I was on my way to drink at my friend Cs house with some friends. I took a walk through the botanical gardens, sipping on a bottle of red wine. It was a nice night, and my mind was wandering the astral airwaves, mostly dwelling on my at the time obsession with the arcane and the surreal. I'm fairly certain that was a major factor in my decision to pick a couple of blood red angels trumpets on my way. I had no plans to indulge at that point, but for whatever reason it seemed like a good idea.
At my friends, we drank queitly and watched skateboarding videos. I'm not particularly close to these people. In fact I wasn't particularly close to anyone at this point. Mostly, we just shared an interest in skateboarding.
After an hour or so, we decided to go to a party at another friends house, a few minutes walk away.
At some point, a friend S asked if I had any sweet drugs. As a joke, I presented him with my datura flowers. He responded with a firm 'Fuck that' and we discussed my hellish experiences with the drug, concluding that I shouldn't do it again. But after a moment of introspection, I said to S 'Hey S, last trip' and munched down the two flowers and washed them down with red wine. I didn't place very much emphasis on this decision, but in hindsight, my life was lacking anything to give it structure or meaning, and I felt free to roam the world of chaos. But my memory of the night faded to dreams and confusion at this point, but I believe I sat quietly in a chair. I imagine this to be around midnight.
My first coherent memory- Quite oblivious to the fact that I had lost my shoes and pants, I was trying to get into a flat I had lived at about a year ago, about half an hour away from the party. I had imagined my key in my hand, but it wasn't working at all. I soon noticed I had an older man in my company. 'That's Olives house' he told me. So I knocked loudly.  My response was something along the lines of 'sorry I thought I lived here...' and I wandered off. At this point, I had no idea I was under the influence, and it seemed like a reasonable mistake to make. The man looking for Olive disappearing wasn't particularly disconcerting either.
After remembering were I lived, I started heading in that direction. I experienced a frightening hallucination soon after-
I was walking past an island on the road. There was a small sign on it, about waist high. In my questionable judgement, this sign was a small one legged girl holding a sign. I thought it very sweet that someone had found a job for her, and started walking towards her. From the other side of the road, as if to mirror me, a dark and seemingly featureless man was walking towards her as well. He reached her before me and proceeded to viciously bind her with some kind of masking tape while she resisted and screamed a muffled cry. By the time I reached her, the attacker had vanished, and the girl had become a street sign. I was convinced he had turned this girl in to a street sign in a most inhumane manner.
My next memory is reaching Cs house. I have since been told that this was about seven AM. Cs flatmate D answered the door, waiting for a package. He then went and got C, 'I thought it was my package but it was just (me) in Fucking hot pants.'
In Cs room, he very seriously told me that when we left his place I still had my pants on, but I wasn't convinced. I was lapsing in and out of believing this was my room, and began leafing through his belongings. Apparently I was talking very quietly and slowly. He told me later that I asked to borrow his pants, and he said to ask D to borrow his.
To this I replied 'That would be opening a can of worms.' and walked off. I'm surprised that in all my Fucked upness I could manage an off hand remark like that. D later said that after I left, I stood for like a quarter hour on their door step. I remember looking in their window and seeing swirling etheric forms, morphing very seemlessly from daemon faces to small scenes. I then spent a while trying to get into my bedroom from Cs house.
The walk home was terrifying. I lived almost an hour away and had to deal with the constant realisation that I was Fucked up, pantless and totally delusional. I kept finding fingers in the pocket of my hoody and mistaking the folds in the end of my sleeves for various items. I hoped to god my underwear was real. I also kept imagining my skateboard in my hands and would go to get on it and stumble.
Horrifying hallucination 2-
I seemed to be in an industrial, eraserheadesque area that I did not recognize. I spotted out of the corner of my eye a chubby girl in a mcdonalds uniform dancing. She noticed me and stopped suddenly and started walking very slowly before
tripping over. She started to scream, so I walked towards her and she started regurgitating a fetus. It sounded very painful. Before I reached her, the familiar featureless bastard emerged from nowhere, stomped the fetus and gave me a most evil glare. I ran away. I've never been so terrified before or since.
For the majority of my walk home, I felt like I was extremely Fucked a minute ago, before interacting with one of my hallucinations. I kept imagining the company of various people in my life and I heard my name constantly. One of my friends tried to show me a dead body he'd found, but I didn't want to hear about it. He gave me a very hurt look as I walked away.
I had a five second memory and walked around in a lot of circles. Someone mentioned that my attire was 'creative'. I thought he was talking about my hoody and mentioned how the hood did its job better than most. All the way home, I felt like I was hearing peoples thoughts. There were usually a few trains of thought going through their heads at once. I could hear them notice me,then notice my lack of clothes, then decide to avoid my eyes. A few times peoples thoughts pointed out things about me that I hadn't noticed. Like that I was wearing one sock.
Eventually I made it to the botanical gardens and my trip took a turn for the better. I could hear the trees talking, and my hallucinatory friends stuck around long enough to have elaborate discussions. It still seemed to be normal for them to turn into trees, fenceposts etc when they finished talking to me. I was phasing in and out awareness of the fact that I was hallucinating, but I was always delusional. I thought I was saving face in front of the 'real' people who were going about their mornings by telling my hallucinations that I knew they weran't there. In reality I was angrily yelling 'Leave me alone I know you're not real' to no one.
It was raining by this point, and I noticed that the fallen leaves were set up to display intricate scenes, like a timeline of the universe. This was worth all the terror and confusion of the trip, and I spent a very long time sitting in a puddle learning about the universe. Apparently the dinosaurs had psychic battles and were all linked up in some kind of morphic field. This eventually killed them when they became competitive with each other within this field, destroying it from the inside. This was a most amazing hallucination that still inspires me with its intricacy. Even now that I realize there was not in fact a hippy sitting there and carefully arranging the leaves, the feeling of amazement that someone had that inhuman level of patience and attention to detail was so powerful that I still draw on it for artistic inspiration.
As I was leaving the gardens, me friend tried to say hi to me, but I explained to him that he wasn't real and kept walking. I turned to look at him several times, expecting to see him turn into a rock, but for an unexpectedly long time he just stared at me with puppy eyes. He did turn into a rock in the end.
I was happy to be on the home stretch, as I lived about ten minutes away. I was manifesting objects in my hand to an impressive standard of realism. I walked past a lady and heard her say something like 'Bit tired huh?' I begged her pardon and she said she didn't say anything. I said I must be tired and kept walking.
Making it home was a huge relief. I was free to enjoy the visuals in peace, as my flatmates at the time were well used to my antics. As I wandered around the house, it was as if everything I'd ever experienced there was happening at once. I'd walk into the kitchen and find myself in some random conversation I'd had in that part of the kitchen. There were dozens of versions of each of my flatmates, going about days they'd had in the past. Eventually I went to bed and had a Waking Life series of vivid and surreal conversations with people I had or had not encountered. I talked to my older brother who died about three years earlier, which was another thing that made the trip worthwhile.
I don't remember what we talked about, just being vaguely aware that he was dead and feeling very awkward about bringing it up. After an incredibly eventful sleep, I spent the next few days cleaning up the mess I made, finding new skate shoes, getting a new phone and cards. I'm afraid to ask the cops if anyone handed my jeans in as my phone was full of dodgy texts. Mostly I spent the next week or so living in a haze. I think I blacked out for about seven hours and tripped for well over 24 hours.
But I didn't feel normal for over a week. To those of you out there interested in exploring this world, I'd recommend doing something to stop yourself going wandering. I have no way of knowing what happened during my blackout, which makes me feel somewhere between disturbed and frustrated. Some of the more frightening visions stayed with me for months, so you'd do well to be fairly mentally stable. I guess.
It doesn't matter how experienced you are with hallucinogens. As far as I was concerned, the world was behaving strangely around me. For most of the trip, I had no idea I was Fucked up. And the moments of clarity were few and far between.
 But overall I think the time spent in terror wasn't any more prominent than the time spent in awe.
It was the best of times, it was the blurst of times.
Be careful.
Experience Reports are the writings and opinions of the individual authors who submit them.
Some of the activities described are dangerous and/or illegal and none are recommended by Erowid.


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Football: Palace must weather the Liverpool storm, says Townsend
LONDON: Crystal Palace must find a way to weather spells of sustained Liverpool pressure in the opening periods of each half if they are to get a result on Saturday (Nov 23), Palace winger Andros Townsend has said.
Liverpool are unbeaten in the league this season and hold an eight-point lead at the top after a 3-1 win over champions Manchester City in their last game. Eight of their 28 league goals have come in the first 15 minutes of each half.
"It's incredible, I think they make a conscious effort each half to go full throttle for the first 15 minutes," Townsend told the Premier League website.
"They suss you out for the first 15 minutes and they did that against Manchester City. Even though they were not playing well, they found themselves 2-0 up."
Townsend said hosts Palace, who sit 12th, would have to play on the counter-attack if they were to have any chance of causing an upset, much like they did in a 2-1 win at Manchester United and 2-2 draw at Arsenal.
"You know you're not going to get much possession," he added. "You know you will have to defend for 90 minutes, even as a winger. My main priority ... is that I need to be a defender first. If we get counter-attacks, I will attack.
"If you defend well and take your chances at the other side you can definitely pull off a shock, as we have proven many times before."


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Implementation
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width: 150,
),
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Language
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of
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Japanese is written with a combination of three scripts: hiragana, derived from the Chinese
cursive script, katakana, derived as a shorthand from Chinese characters, and kanji,
imported
from China.


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Recent standards and libre software allow anyone to create a font from their own handwriting. That's what I did with Pecita. The software in question was Ubuntu, xsane, Gimp, Inkscape and especially the wonder of wonders, FontForge. To all the creators, thank you!
The raw material of Pecita is a scan of my writing with its flaws and charms. The font is available as OpenType (.OTF) from pecita.eu. It is coded with full Unicode glyphs customary in Latin and pan European languages, the phonetic alphabet, katakana, and many symbols. It includes many ligatures.
Version 2.5 represents the achievement of key objectives: all the Latin characters used nowadays, katakana, all Unicode characters up to 0 × 02AF, ligatures enough for a realistic handwritten record.


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This HIT is an academic experiment on decision making conducted by the researchers from the University of Zürich.
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Angular Material
Presented By Nicholas Spaulding
What is Angular Material?
- Essentially, it is a library that combines Angular components with
material design styling to enhance, both the look, and the
functionality of any Angular project.

Project 4 Use
I used the Angular Material to:
- Make the Todo table
- Sort the Todo table
- Filter the Todo table
Conclusion
- If you're stuck, use Angular Material to meet project
requirements.


CAT ON A HOT TIN ROOF
Winter 1970 at the LLT Armory Building Playhouse
Director - Dana Seefeld
Assistants to Director - Edna Bilke, Mary Anne Duncan
Stage Manager - John Bisnette
Lights - John B. Tomlinson
Sound - Pat Farrell, Brian Wilson
Set Construction - Clayton Corley, Larry Dunne
Props - Barbara Gilliland, Betty Jean Stone
Publicity - Mrs. James D. Robertson, Mrs. Johnny Openshaw
Program Cover - Beth Dunne
THE CAST
Maggie - Page Harris
Brick - Don O'Brien
Mae - Patty Howard
Gooper - Alpheus McRae
Big Mama - Eleanor Seefeld
Big Daddy - Lowell Tew
Dr. Baugh - Tucker Buchanan
Rev. Tooker - Cary Smith
Children - Linda Howard, Cynthia Newton, Marguerite Tew,
Johnny Davis, Marian O'Brien


What possessed you to try and implicate your colleagues? It's a good thing I had Jing and Salvinu keeping tabs on you, or you might have blown the entire investigation.
You did a great job making me think you were a loyal employee, though. I must confess that I didn't see this coming. It just goes to show that you can't prevent a train from occasionally blowing up spectacularly.
Speaking of trains, I leave you with this wagon. Notice how it has no engine to pull it? That's you. No one likes a rat.
Sandra Silvern
Managing Consultant / Haka Manager


workshop by kriselda rabino
tweet me: @krissygoround
This slide deck is made with open source code thanks to the awesome folk at revealJS.
▼ (scroll down)
Hi! I'm Kriselda or Krissy or That Strange Lady Hovering Around the Food Table.
Let's hear a little about you!
▼ (scroll down)
Programming languages - like Ruby, Python or PHP - help humans and machines communicate with each other.
They can be used to write programs which solve problems, make cool things (e.g. websites or gadgets) or email everyone daily sloth GIFs.
Computers are not as smart as humans (yet!), so in order to communicate with them we need to keep things straight forward and obvious, like a recipe book or instruction manual.
It's sort of like when your parents, spouse or flatmate ask you to "help around the house" - what does that even mean?
 You. Take it outside!".
(Am I right or am I right?)
Ruby was created by a Japanese guy called Yukihiro Matsumoto. A guy so cool we all know him as "Matz". His aim is to provide a beautiful, readable language that makes programmers happy.
It looks like this:
# Some code that will help us say hello when we call it
def say_hello(name, creature)
if creature == :sloth
puts "Helloooo #{name}"
else
puts "Hello #{name}"
end
end
# Now we can print "Hello Craig"
say_hello("Craig", :human)
# Or we can print "Helloooo Craig" (like a sloth!)
say_hello("Craig", :sloth)
(Phew! Not so scary, right?)
| It's used on the back-end | Alongside a server and/or database, as opposed to "front-end" browser-based languages like HTML, CSS and JavaScript. |
| It's a high-level language | Humans can read it good. |
| It's object-oriented | Everything is an object. We'll go over this in a bit. |
| It's dynamic and strongly typed | This refers to how we create things and make different types of things talk to each other. We won't have time to go over this but if you're curious, google the difference between Static v Dynamic and Strong v Weak languages later on. |
| It's super flexible | Compared to other languages. Like marmite - people either love or hate this. |
This is a very common misconception when first exploring the Ruby world.
An important thing to note about programming is a lot of people face the same problems every day, so programs have been built to help each other achieve these common tasks.
Rails is a popular web framework made using the Ruby language. It provides the essential building blocks to create a modern web application.
Some popular sites built with Rails include Github, Airbnb and SoundCloud!
As above, a good programmer avoids reinventing the wheel.
Ruby devs can choose to share their programs with the open source community by packaging up their programs into little reusable libraries called "gems". These can be installed by anyone to use on their machines or in their own programs.
You can search for gems (including our friend, Rails) up on the gem hosting service RubyGems.
▼ (scroll down)
Good news! We won't need to fiddle around too much with setup for this workshop and we'll be using the handy website tryruby.org to play around. For reference, let's quickly go over what you'd usually need to start coding with Ruby.
There are different ways to install Ruby depending on your machine. If you're on a Mac, it comes with Ruby pre-installed, however, this is usually an older version and you're better off installing it fresh anyway. You can find out how to install Ruby via the official site.
Say hi to your new minimalistic home: The Command Line! Remember, anything new always feels alien but you'll soon be using this enough for it to feel totally natural. Mac users can access this via their Terminal app. Windows users via the Command Prompt.  (Free calculator? Score!)
# Any line starting with a # is a comment btw.
# This is for humans only, which means you can pretty
# much type anything you want. Like "SLOTH".
2 * 5
=> 10
30 / 3
=> 10
32.even?
=> true
32.odd?
=> false
>
# Some words?
>
"hi, Krissy"
=> "hi, krissy"
'Krissy' * 3
=> 'KrissyKrissyKrissy'
"Krissy".upcase
=> "KRISSY"
krissy
=> irb(main):001:0> krissy
NameError: undefined local variable or method `krissy' for main:Object
It can get a bit tedious sending one line of code each time in an IRB session. Once you have ruby installed, you can also save your code in any file with the .rb extension, navigate to its containing folder in your command prompt/terminal and type ruby {filename}
to run it. E.g. ruby sloth.rb
.
A nice chair, working stationery, a desk cactus - we all work better in the right environment with the essential tools around us.
Installing a good plain text editor is essential to kickstart your coding projects, ensuring no funny characters sneak into your files, helping you out by highlighting your code, auto-completion and much more.
 It's normal and it's totally OK.
If you were being adventurous, you probably saw something like this gobbledy gook come up in your interactive ruby session:
These messages are called "Exceptions". Exceptions are Ruby's way of letting you know something's not right and where the problem might lie.
Usually the exception will point to the line it doesn't quite get which is very helpful when your codebase starts to get large!
They may look intimidating, but the fact is: Exceptions are your new BFFs!
(Those brutally honest kinds of friends that tell you you've got food in your teeth, and point to the exact tooth.)
Welcome their advice. They're here to help you out.
▼ (scroll down)
Here's some code. Don't worry, it's as scared of you as you are of it! ;) Spend the next 10 minutes typing it up in your code editor (resist the urge to copy and paste) in a file called sloth.rb
, saved in a directory of your choice. No need to type the comments (they're for you!). If you have ruby set up, type ruby sloth.rb
on the command line to run it. If you don't have ruby installed yet, copy it to tryruby.org to run it.
# 1. Let's make some classes! Starting with the generic Animal class
class Animal
def animal?
true
end
def eat
"Time to eat!"
end
def run
"Time to run!"
end
end
# 2. Now let's make a Sloth class, which is a type of Animal
class Sloth < Animal
# Attribute accessors are a quick way to create methods that read or set a value
attr_accessor :name, :fur_colour
# Let's set our initial values
def initialize(name)
@name = name
@number_of_limbs = 4
@fur_colour = "grey"
end
# This will override the run method in our Animal class
def run
"I know I have #{@number_of_limbs} limbs, but I don't know how to do that!"
end
end
# 3. Cool! Now we have our classes, let's make a real sloth instance!
craig = Sloth.new("Craig Slothy McSlothFace")
# -- Now let's find out some things about Craig:
# -- Print "My sloth's name is Craig Slothy McSlothFace"
puts "My sloth's name is #{craig.name}"
# -- Print "Is he an animal? true"
puts "Is he an animal?: " + craig.animal?.to_s
# -- Print "Time to eat!"
puts craig.eat
# -- Print "I know I have 4 limbs, but I don't know how to do that!"
puts craig.run
# -- Print "Craig's fur colour is grey"
puts "Craig's fur colour is: #{craig.fur_colour}"
# 4. Now let's see what happens if we create a new Animal instance and call run
some_generic_animal = Animal.new
# -- Print "Time to run!"
puts some_generic_animal.run
(If you haven't heard of them, nanoblocks are like Lego but cooler... except for people with gigantic hands.)
In fact, he wasn't even Craig back then. He was just a generic set of instructions with a bunch of sloth-like specs.
So if we have objects, i.e. nouns, what are the things they do (i.e. their verbs)? The rubyverse calls these: Methods! You've been using these heaps already, e.g. reverse is a method available on the String "hello". Let's create our own now.
# Our method takes something called an "argument" in brackets, and uses
# that to get personal preferences from whoever/whatever called the method.
def greet_like_a_sloth(name)
puts "Hai #{name}, I'mmmm aaaaa slothhhhh"
end
# Now try call your method!
greet_like_a_sloth("Craig")
# You can chain methods that belong to the same class
# E.g. print "OLLEH"
puts "Hello".reverse.upcase
# A method performs actions within it and returns the last line
# or the line with a return statement
def be_a_sloth
name = "Craig"
speed = "slow"
"#{name} is #{speed}"
end
# Prints "Craig is slow"
puts be_a_sloth
def be_a_hyena
name = "Harriet"
return name
speed = "fast"
"#{name} is #{speed}"
end
# Prints "Harriet" and never runs the last 2 lines
puts be_a_hyena
It can get very repetitive having to write the same thing over and over again. Luckily, code is very good at making our lives a little easier and lazier. Variables are like little PAs you can rely on to remember all the details for you.
# Let's play around with a sentence
"Haiiii, I'mmmm aaaa slothhhh".reverse
"Haiiii, I'mmmm aaaa slothhhh".upcase
# OK, I'm feeling a bit sick of typing now. Ooh, variable time!
greeting = "Haiiii, I'mmmm aaaa slothhhh"
greeting.reverse
greeting.upcase
# (Ah, so much better. I might as well go for a nap now.)
# It's easy to change your mind, so it's great you can tell your
# variable to remember something new as many times as you want.
# And it won't roll its eyes at you!
greeting = "Hai!"
puts greeting
greeting = "Hai again!"
puts greeting
You can find out what class or type any object is by calling the method .class
on it.
Back in your IRB shell or tryruby.org, try enter the following and see what you get:
1.class
"Hello".class
"Hello".kind_of?(String)
1.kind_of?(Fixnum)
2.kind_of?(String)
▼ (scroll down)
So, you've already been playing with some of Ruby's built-in classes and handy tools. Here's a little overview of some common ones we'll use during this workshop.
Ruby can do handy stuff with numbers in the most obvious way. And knows some neat tricks too! Try some of these:
10.class # Fixnum (an integer)
10.5.class # Float (a decimal)
10 + 5 # Arithmetic
16 % 5 # Modulo / remainder
5**2 # To the power of
# You can use underscores to make long numbers easier to read.
# Ruby knows to ignore them. It's nice and intuitive like that.
1_000_000 + 10
(1..5).class # These are handy classes of their own called Ranges!
(1..5).include?(5)
(1..5).max
(1..5).min
10.5.to_i # Make a float an integer
10.odd? # Is this an odd number?
10.methods # Check out all the things we can call!
Strings are code-speak for any value that consists of text or characters. Ruby interprets anything in single or double quotes a string. Let's test this out!
# You can use single or double quotes for simple
# text phrases and no one will yell at you.
# (Just try your best to be consistent!)
"Hai, I'm Craig.".class
"42".class
puts "prints a string and a new line"
print "prints a string with no new line"
# A backslash "escapes" special characters, like this apostrophe
# so we don't get it mixed up with a closing quote
'Hai, I\'m Craig.'
# You have to use double quotes when Ruby needs to
# do something a bit clever
"Two plus one is #{2 + 1}"
# String arithmetic?
"2" + "1" # 21
"Connect" + "These" # ConnectThese
"Sloth" * 3 # SlothSlothSloth
"2" + 1 # Should raise a TypeError
"How long am I?".length
"Reverse me".reverse
"Make this all uppercase".upcase
"capitalize me".capitalize
Booleans are a way of checking if something is true or false. A simple but regularly needed check in the world of code.
true.class # TrueClass
false.class # FalseClass
# Common operators, all examples return true
5 == 5 # Equal to
5 != 10 # Not equal to
5 4 # Greater than
5 >= 5 # Greater than or equal to
4 < 5 # Less than
5 <= 5 # Less than or equal to
(1..10) === 5 # Does 5 fall in this range?
# Comparison (AND/OR), all examples return true
5 == 5 && 5 > 4 # AND, i.e. all are true
5 == 5 || 3 > 4 # OR, i.e. at least one is true
# Being negative, use an !
!(5 == 4) # True
# Methods ending in ? indicate a true/false answer
1.odd? # True
1.even? # False
Symbols are handy to use for text values that label or identify something and won't change. You can tell a difference between a String and a Symbol as it's prefixed with a colon.
:sloth.class
:sloth.capitalize
:sloth.to_s # convert it to a String
Sometimes it's not all about sloths (really?!) and you need to deal with a bunch of other things too. This is where Collections come in. One common type is an Array, which is an ordered list of things. Let's get listing!
> ["sloth", "bear", "octopus"].class
# Numbers
[1, 2, 3, 4, 5]
(1..5).to_a # Convert this range to an array
# Strings
["sloth", "bear", "octopus"]
%w(sloth bear octopus)
"I am a string".split
# Symbols
[:sloth, :bear, :octopus]
%i(sloth bear octopus)
# Reading stuff
[:sloth, :bear, :octopus] # Check the first thing in the array
[:sloth, :bear, :octopus].first
[:sloth, :bear, :octopus][1] # Check the second thing
[:sloth, :bear, :octopus][-1] # Check the last thing
# Adding stuff (push!)
[:sloth, :bear, :octopus].push(:penguin)
[:sloth, :bear, :octopus] << :penguin
# Removing stuff (pop!)
[:sloth, :bear, :octopus].pop(:octopus)
# Printing an array as a String, use join
puts ["I", "am", "a", "sloth"].join(" ") # I am a sloth
puts ["I", "am", "a", "sloth"].join("-") # I-am-a-sloth
# Other things
[].empty?
[:sloth, :bear, :octopus].length
[:sloth, :bear, :octopus].shuffle
▼ (scroll down)
Life is full of hard decisions, some harder than others like whether you feel like pizza or noodles tonight. In this respect, programming is exactly like life.
When we make decisions, our new Boolean friends steal the show. They're used in conjunction with things called if/else statements and other neat little decision-making tools.
# Let's update our greet method from earlier to be more decisive.
def greet_like_an_animal(name, animal)
if animal == :sloth
puts "Hai #{name}, I'mmmm aaaaa slothhhhh"
elsif animal == :octopus
puts "Hai #{name}, I'm (bubble) a (bubble) octopus!"
else
puts "Hai #{name}, I'm a #{animal.to_s}"
end
end
# Now try call your method!
greet_like_an_animal("Craig", :sloth)
greet_like_an_animal("Craig", :octopus)
greet_like_an_animal("Craig", :bear)
# Some other checks
# Unless
puts "Hello" unless 1 == 1 # This will return 'nil' which is ruby's version of nothingness
▼ (scroll down)
Back to loving the lazy life- code makes our days so much easier by doing all our repetitive tasks for us. Thanks to our little syntax servants, we can do a bazillion things in one or a couple of lines. Yay!
So imagine we were really obsessed with someone, or a specific kind of slow creature, and we wanted to let them know with a hundred declarations of love.
puts "1. I really, really like you. Be mine?"
puts "2. I really, really like you. Be mine?"
puts "3. I really, really like you. Be mine?"
# Ok, that's getting tiresome... how about a for loop?
for count in 1..100 do
puts count.to_s + ". I really, really like you. Be mine?"
end
# Smooth. We could also write these like so:
100.times do |count|
count = count + 1
puts count.to_s + ". I really, really like you. Be mine?"
end
# Or like:
1.upto(100){ |count| puts count.to_s + ". I really, really like you. Be mine?" }
# Or even:
count = 0
while count < 100
count += 1 # shortcut way of saying count = count + 1
puts count.to_s + ". I really, really like you. Be mine?"
end
As you can see, there are many ways to do the same thing. Rubyists tend to use some ways more than others. A popular looping method is calling each
or map
on a collection (some useful methods from a nifty class called Enumerable)
awesome_animals = ["sloth", "dugong", "koala"]
# Use the each method to do something with each element in the array
awesome_animals.each do |animal|
puts "#{animal}s rock!"
end
# Use the map method to change all elements in an array
loud_animals = awesome_animals.map do |animal|
animal.upcase
end
# Use the join method to turn the array back into a string separated with spaces
# Prints: "Some loud animals: SLOTH DUGONG KOALA"
puts "Some loud animals: " + loud_animals.join(" ")
Last but not least are some neat things called blocks; those things wrapped in "do"s and "end"s or curly braces you've just seen in the last few slides. Blocks are like little roleplays written out for whatever actor is coming through the stage curtains (also known as pipes ||).
# Do a rocket countdown!
5.downto(1) do |rocket_count|
puts rocket_count
puts "Lift off!"
How'd you go? Go back to the previous slide or ask a friendly helper if you've got brain burn. Once you've attempted it, hit the down arrow key to check your answer:
# My method
def speak(animal)
puts "#{animal.capitalize}: Oh hai world!"
end
# Print "Bear: Oh hai world!"
speak("bear")
Bear: Oh hai world Sloth: Oh hai world Fish: Oh hai world
if/else
) so it prints out "Ohhhh haiiii worldddd" if the animal is a slothMoar confusez? Again, go back to the previous slides on arrays, conditional statements and loops or ask a friendly helper for assistance. Once you've attempted it, hit the down arrow key to check your answer:
# My method
def speak(animals)
animals.each do |animal|
if (animal == "sloth")
puts "#{animal.capitalize}: Ohhhh haiiii worldddd!"
else
puts "#{animal.capitalize}: Oh hai world!"
end
end
end
# Print:
# Bear: Oh hai world!
# Sloth: Ohhhh haiiii worldddd!
# Fish: Oh hai world!
awesome_animals = ["bear", "sloth", "fish"]
speak(awesome_animals)
"Sloth: Rubyyyy issss neatttt"
(Hint: There are several things to think about here - break the problem down into single steps. Firstly, how would you split a sentence up into a group of words? Then how do you something to change each word? How do you extend the word? Use the slides, Google or a friendly fellow human to help you out if you're stuck!)
This one was quite tricky so congrats if you've made it this far! Once you've attempted it, hit the down arrow key to check your answer:
# My helper method
def make_slothy_sentence(sentence)
# Turn the sentence string into an array using split
# Use the map method to transform each array element
# Remember the last element can be accessed by the array[-1] method
# Use the * operator to multiply the last letter by 3
# Finally use array.join() to turn the sentence back into a string
sentence.split.map do |word|
last_letter = word[-1]
word + last_letter*3
end.join(" ")
end
# My main method
def speak(animals, sentence)
animals.each do |animal|
if animal == "sloth"
puts animal.capitalize + ": " + make_slothy_sentence(sentence)
else
puts animal.capitalize + ": " + sentence
end
end
end
# Print:
# Bear: You're a coding machine
# Sloth: You'reeee aaaa codingggg machineeee
# Fish: You're a coding machine
awesome_animals = ["bear", "sloth", "fish"]
speak(awesome_animals, "You're a coding machine")
▼ (scroll down)
We've covered a bunch of topics, and even if you're still scratching your head about a lot of it, the point of this session is to get a taster for coding and understand it's not rocket science (most of the time) but a lot more about solving puzzles, organizing yourself and making an infinite world of ideas come to life.
Most importantly, learning to code is no longer just for "programmers". Tech is so prominent in our world it's valuable for us all to understand our environment and feel enabled rather than paralysed by it. You've just unlocked a new life skill - well done!
The best thing about learning to code is the fast-growing amount of free resources and support you can find from tech communities both online and in your local area. People all learn differently, so explore your options (there are many!) and find what works for you.
If you have any questions about ruby/coding, working in tech, sloths or anything else, please throw them my way.
email me<EMAIL_ADDRESS>tweet me: @krissygoround


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Stylesheets in Internet Explorer
Demonstrating unexpected behaviour around stylesheets.
Learn more about KB262161 here
or here.
Note: These tests are only designed to run on IE8, 9 and 10.
The following are scenarios which cause issues which their root cause have yet to be identified.


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DU students protest against police action
by PRESS TRUST OF INDIADelhi University students on Wednesday protested against the alleged police lathi-charge on their JNU counterparts during a demonstration over hostel fee hike.
They also protested against the New Education Policy and said it is an “attempt” to privatise education.
The Left-backed All India Students’ Association (AISA), along with other students’ organisations, held a protest against the Draft New Education Policy and the “brutal repression of the protest by Delhi Police and the government“.
Students gathered in large numbers in dissent of the “draconian New Education Policy which acts as a stepping stone towards privatisation of public education”, the parties said in a statement.
They alleged that Delhi Police personnel were present in large numbers, barricading the boundaries of Arts Faculty to stop the students from marching in the campus. However, a senior police officer said police were only there to ensure that march goes off peacefully.


Find out if anyone in your area has the same interests as you. Be surprised by how many people in your area take part in so many different hobbies/activities.
Look around to see other peoples reviews on their recent adventure. If you see someone who happens to have the same interest as you take their opinion and see if there is any other interest might catch your eye.
Sit back and talk to others about your hobbies. Learn new things about your favorite activity. Even take part in purchasing other peoples work, equipment, and accessories.


I went to scala.io 2014 and had the chance to sit in the talk OptimusPrimeT by Lars Hupel. I really like his intuitive way to describe functional buildings.
The Functor and Monad buildings are very easy to come by since any Scala programmer faces them immediatly. As soon as one tries to understand behaviours of Option and List, it will read these words Functor and Monad. While Applicative Functors are less highlighted and I never met one in the standard library.
We will try to get an intuition about these functional buildings setting a particular focus on Applicative.
Functor
“Functors are about transforming data” - Lars Hupel
Functors do not allow creation nor deletion of data but just transformation. Also they are intended to keep their behaviour.
Here is a functor type class definition
trait Functor[F[_]] {
def map[A, B](fa: F[A], f: A => B): F[B]
}
We can infer from types that we need an A to compute a B, the reamining is functor’s responsibility. The function f does not take a F[A] nor it returns a F[B], meaning you have no way to influence the functor’s logic.
Considering scala List as our Functor and applying f on data of the List will result in another List of the exact same length in the exact same positions.
List(1, 2, 3).map(_ - 2)
: List[Int] = List(-1, 0, 1)
Use Simple transformation
Monad
“Monads are about transforming dependent pieces of data” - Lars Hupel
On the other hand Monads allow both creation and deletion of data as well as transformation. Furthermore the behaviour of the Monad can be switched to some less happy path.
Here is the Monad type class definition
trait Monad[F[_]] {
def flatMap(fa: F[A], f: A => F[B]): F[B]
}
Types tell that an A is required to compute a F[B], and the rest is left apart as for the Monad’s logic. The function f allows to switch between the many shapes of a Monad. We deduce here that the effect expressed by F[B] depends on A so Monads are really about chaining dependent pieces of data.
For instance a List will apply f to each of its elements, when f returns a List containing more than 1 element it results in adding elements to the List.
List(1, 2).flatMap(x => List(x * 10, x * 10 + 1))
: List[Int] = List(10, 11, 20, 21)
Conversely when f returns an empty List then this element is removed from the List.
List(1, 2).flatMap(x => List[Int]())
: List[Int] = List()
Use Short circuit error handling
, Parser combinators
, Value-oriented paralleslism
, …
Applicative
“Applicatives are about transforming independent pieces of data” - Lars Hupel
Applicatives are more confidential, less explicitly exposed but you certainly use them quite often under the cover.
Applicatives are like Monads in that they can create, modify and delete data but in a slightly different way. An Applicative Functor does not rely on a specific function of yours to create or delete data but only on the supplied F[_] arguments and its very own logic.
Here is the Applicative type class definition
trait Applicative[F[_]] {
def <*>[A, B, C](fa: F[A], ff: F[A => B]): F[B]
}
Applicatives are more confusing when compared to Monads, why would we ever need to have a F[A => B] ? As its name suggests Applicatives try to apply a function A => B with a label F (F[A => B]) to an A with the same kind of label F (F[A]).
Focusing on types, from an A we know how to compute a B. We don’t know how to compute F[B], once more it is Applicatives responsibility. Finally we can’t bring out any relationship between F[A] and F[B] but our A => B, this means Applicatives know how to generically manage things nicely. Chaining application through an Applicative makes very clear it deals with independent pieces of data.
Say we have some untrusted generic data structure and want some other trusted data structure, respectively JSON and case class. Surely we know how to extract data from a json tree for the first field of the class as well as we know for the second field and so on. Then we need some way to express these extracted pieces of data should overall fail when combined together if at least one of them can not be extracted.
For example we have a Person
case class Person(name: String, age: Int)
Of course, we know how to create a Person from the data needed for its fields.
Person.curried
: String => (Int => Person) = <function1>
Here for ff, A is String and B is Int => Person.
It is Applicatives responsiblity to decide what to do with zero, one or more failing pieces of data, should it be to accumulate failures, keep the first or the last one.
Going back to the untrusted data structure we can create a way of extracting each piece of data from the JSON tree and make these pieces available as Options. We can extract both the name to get an Option[String] and extract the age to get an Option[Int]
Now we mix everything together to see what can happen:
Option(Person.curried) <*> extract("name")[String] <*> extract("age")[Int]
: Option[Person]
This expression has the following type:
Option[String => Int => Person] <*> Option[String] <*> Option[Int]
: Option[Person]
In case data is missing somewhere in the application chain then it is logical to result in a None.
We understand the pieces of data are independent one from another and Applicative Functors allow to combine them in order to compute meaningful results.
Use Accumulative error handling