Intro to Android: Feelings
Goal
We are going to create an app that takes your name as an input, and uses a spinner (which is
like a dropdown menu) to print out your mood and an image associated with your mood!
Create the Project
- Open Android Studio
- Create a new project
- Application name: Feelings
- Company name: your name
- Change your project location to where you want it to be located
- NEXT
- Make sure Phone and Tablet is checked
- Minimum SDK: API 16: Android 4.1 (Jelly Bean)
- Click on Empty Activity. Blank Activity actually has extra stuff in it that we don't
need.
- NEXT
- Leave MainActivity as it is. MainActivity.java is the main java file we will be working
with.
- Make sure Generate Layout File is checked
- FINISH
Buttons, TextViews, and EditViews
- Open the activity_main.xml file
- The Design tab is the main design editor
- The Text tab is the XML, the code behind the design
- In the Text tab, move the textView to the center horizontally by adding
android:layout_centerHorizontal = “true”
- Change the font size android:textSize = “24sp” (sp stands for scale-independent and is
good for scaling to other phone sizes)
- Change the text android:text = “How are you feeling?”
- If you go into the Design tab, you will be able to see the new text centered
- Go to the Design tab
- Drag and drop a button and another Plain TextView under the button
- They each get default text. We can change the text in the Strings.xml file.
- Navigate to the strings.xml file and add the following line to change the button text to
‘Mood’
-
<string name=”mood_button”>Mood</string>
- Then add the following line to create an empty text that will be filled with text after
the button is pressed.
-
<string name=”feeling”></string>
- Now go back to activity_main.xml
- In the Text tab, change the button text to
-
android:text=”@string/mood_button"
- Then add the following line so that when the button is pressed, the function findMood is
called
-
android:onClick=”findMood”
- And the new textView text to
-
android:text=”@string/feeling"
- Then change the same textView’s ID to feelingText
-
android:id=”@+id/feelingText”
- Now go to MainActivity.java. We are going to create a function that fills in the text
when we click the button.
-
public void findMood(View view) {
TextView feeling = (TextView) findViewById(R.id.feelingText); //finds the textview
by ID
feeling.setText("I'm in the mood to create Android apps!"); //sets the text
}
- If you get some red errors, hover over one of the red words and it is most likely
because your
Android Studio isn't set up to automatically add libraries. You can manually add
libraries by doing the command the
error message shows, or go into your preferences and under Editor -> General -> Auto
Import and check
optimize imports on the fly.
- Now go to Activity_main.xml and add a spinner. We will store the values for the spinner
in an array in Strings.xml
- Go to strings.xml and add the following string array:
-
<string-array name= “moods”>
<item>Happy</item>
<item>Sad</item>
<item>Curious</item>
<item>Angry</item>
</string-array>
- Go back to activity_main.xml and in the spinner add the following line to access the
entries
- android:entries="@array/moods"
- Run your app and make sure you can see the values of your spinner
- Now go to MainActivity.java and update your findMood() function to include the spinner’s
selected item in the text.
- Spinner moodSpinner = (Spinner) findViewById(R.id.spinner);
- String moodValue = String.valueOf(moodSpinner.getSelectedItem());
- Change your feeling.setText to:
- feeling.setText("I'm in a " + moodValue + " mood");
- Run the app
Buttons, TextViews, and EditViews
- EditText
- Navigate to activity_main.xml
- In the Design tab, add a horizontal linear layout above the spinner so items can be next
to each other
- Inside of the linear layout, add a TextView
- Then under the section, Text Fields, and a Person Name EditText right next to the
TextView you just added
- In strings.xml add:
<string name=”name_textview”>Name</string>
- In activity_main.xml update the TextView and EditText with the following:
- <TextView
android:layout_width=”wrap_content”
android:layout_heigh=”wrap_content”
android:text=”@string/name_textview” />
<EditText
android:layout_width=”wrap_content”
android:layout_heigh=”wrap_content”
android:id=”@+id/name_editText”
android:layout_weight=”1” />
- Now let’s update MainActivity.java so our message is personalized with our name.
- Update findMood()
- EditText name = (EditText) findViewById(R.id.name_editText);
- String nameValue = name.getText().toString();
- feeling.setText(nameValue + " is in a " + moodValue + " mood");
- Run the app. You should be able to input your name!


Section 3s definition, repealed and recodified in 1947 as part of the Rules of Construction Act, 1 U. S. C. §3, has remained virtually unchanged from 1873 to the present. 4 Even now, §3 continues to supply the default definition of vessel throughout the U. S. Code, unless the context indicates otherwise. 1 U. S. C. §1. The context surrounding the LHWCAs enactment indicates that §3 defines the term vessel for purposes of the LHWCA.
Section 3 merely codified the meaning that the term vessel had acquired in general maritime law. See 1 S. Friedell, Benedict on Admiralty §165 (rev. 7th ed. 2004). In the decades following its enactment, §3 was regularly used to define the term vessel in maritime jurisprudence. Taking only the issue presented herewhether a dredge is a vesselprior to passage of the Jones Act and the LHWCA, courts often used §3s definition to conclude that dredges were vessels. 5
From the very beginning, these courts understood the differences between dredges and more traditional seagoing vessels. Though smaller, the dredges at issue in the earliest cases were essentially the same as the Super Scoop here. For instance, the court could have been speaking equally of the Super Scoop as of The Alabama when it declared:
The dredge and scows have no means of propulsion of their own except that the dredge, by use of anchors, windlass, and rope, is moved for short distances, as required in carrying on the business of dredging. Both the dredge and the scows are moved from place to place where they may be employed by being towed, and some of the tows have been for long distances and upon the high seas. The dredge and scows are not made for or adapted to the carriage of freight or passengers, and the evidence does not show that, in point of fact, this dredge and scows had ever been so used and employed. The Alabama , 19 F. 544, 545 (SD Ala. 1884).
See also Huismann v. The Pioneer , 30 F. 206 (EDNY 1886). None of this prevented the court from recognizing that dredges are vessels because they are watercraft with the capacity to be navigated in and upon the waters. The Alabama , supra , at 546; see also The Pioneer , supra , at 207; The International , 89 F. 484, 485 (CA3 1898).
This Court also treated dredges as vessels prior to the passage of the Jones Act and the LHWCA. It did so in a pair of cases, first implicitly in The Virginia Ehrman and the Agnese, 97 U. S. 309 (1878) , and then explicitly in Ellis v. United States, 206 U. S. 246 (1907) . In Ellis , this Court considered, inter alia , whether workers aboard various dredges and scows were covered by a federal labor law. Just as in the present case, one of the Ellis appellants argued that the dredges at issue were vessels within the meaning of Rev. Stat. §3, now 1 U. S. C. §3. 206 U. S., at 249. The United States responded that dredges were only vessels, if at all, when in actual navigation as they were towed from port to port. Id. , at 253. Citing §3, Justice Holmes rejected the Governments argument, stating that [t]he scows and floating dredges were vessels that were within the admiralty jurisdiction of the United States. Id. , at 259.
These early cases show that at the time Congress enacted the Jones Act and the LHWCA in the 1920s, it was settled that §3 defined the term vessel for purposes of those statutes. It was also settled that a structures status as a vessel under §3 depended on whether the structure was a means of maritime transportation. See R. Hughes, Handbook of Admiralty Law §5, p. 14 (2d ed. 1920). For then, as now, dredges served a waterborne transportation function, since in performing their work they carried machinery, equipment, and crew over water. See, e.g., Butler v. Ellis , 45 F. 2d 951, 955 (CA4 1930) (finding the vessel status of dredges sustained by the overwhelming weight of authority); The Hurricane , 2 F. 2d 70, 72 (ED Pa. 1924) (expressing no doubt that dredges are vessels), affd, 9 F. 2d 396 (CA3 1925).
This Courts cases have continued to treat §3 as defining the term vessel in the LHWCA, and they have continued to construe §3s definition in light of the terms established meaning in general maritime law. For instance, in Norton v. Warner Co., 321 U. S. 565 (1944) , the Court considered whether a worker on a harbor barge was a master or member of a crew of any vessel under the LHWCA, 33 U. S. C. §902(3)(G). In finding that the barge [was] a vessel within the meaning of the Act, the Court not only quoted §3s definition of the term vessel, but it also cited in support of its holding several earlier cases that had held dredges to be vessels based on the general maritime law. 321 U. S., at 571, and n. 4. This Court therefore confirmed in Norton that §3 defines the term vessel in the LHWCA and that §3 should be construed consistently with the general maritime law. Since Norton , this Court has often said that dredges and comparable watercraft qualify as vessels under the Jones Act and the LHWCA. 6
B
Despite this Courts reliance on §3 in cases like Ellis and Norton , Dutra argues that the Court has implicitly narrowed §3s definition. Section 3 says that a vessel must be used, or capable of being used, as a means of transportation on water. 18 Stat., pt. 1, p. 1. In a pair of cases, the Court held that a drydock, Cope v. Vallette Dry Dock Co., 119 U. S. 625, 630 (1887) , and a wharfboat attached to the mainland, Evansville & Bowling Green Packet Co. v. Chero Cola Bottling Co., 271 U. S. 19, 22 (1926) , were not vessels under §3, because they were not practically capable of being used to transport people, freight, or cargo from place to place. According to Dutra, Cope and Evansville adopted a definition of vessel narrower than §3s text.
Dutra misreads Cope and Evansville . In Cope , the plaintiff sought a salvage award for having prevented a drydock from sinking after a steamship collided with it. 119 U. S., at 625626. At the time of the accident, the drydock, a floating dock used for repairing vessels, was moored and lying at [the] usual place it had occupied for the past 20 years. Id. , at 626. In those circumstances, the drydock was a fixed structure that had been permanently moored, rather than a vessel that had been temporarily anchored. Id. , at 627. Evansville involved a wharfboat secured by cables to the mainland. Local water, electricity, and telephone lines all ran from shore to the wharfboat, evincing a permanent location. 271 U. S., at 22. And the wharfboat, like the drydock in Cope , was neither taken from place to place nor used to carry freight from one place to another. 271 U. S., at 22. As in Cope , the Court concluded that the wharfboat was not practically capable of being used as a means of transportation. 271 U. S., at 22.
Cope and Evansville did no more than construe §3 in light of the distinction drawn by the general maritime law between watercraft temporarily stationed in a particular location and those permanently affixed to shore or resting on the ocean floor. See, e.g., The Alabama , 19 F., at 546 (noting that vessels possess mobility and [the] capacity to navigate, as distinct from fixed structures like wharves, drydocks, and bridges). Simply put, a watercraft is not capable of being used for maritime transport in any meaningful sense if it has been permanently moored or otherwise rendered practically incapable of transportation or movement.
This distinction is sensible: A ship and its crew do not move in and out of Jones Act coverage depending on whether the ship is at anchor, docked for loading or unloading, or berthed for minor repairs, in the same way that ships taken permanently out of the water as a practical matter do not remain vessels merely because of the remote possibility that they may one day sail again. See Pavone v. Mississippi Riverboat Amusement Corp. , 52 F. 3d 560, 570 (CA5 1995) (floating casino was no longer a vessel where it was moored to the shore in a semi-permanent or indefinite manner); Kathriner v. Unisea, Inc. , 975 F. 2d 657, 660 (CA9 1992) (floating processing plant was no longer a vessel where a large opening [had been] cut into her hull, rendering her incapable of moving over the water). Even if the general maritime law had not informed the meaning of §3, its definition would not sweep within its reach an array of fixed structures not commonly thought of as capable of being used for water transport. See, e.g., Leocal v. Ashcroft, 543 U. S. ___, ___ (2004) (slip op., at 7) (When interpreting a statute, we must give words their ordinary or natural meaning (quoting Smith v. United States, 508 U. S. 223, 228 (1993) )).
Applying §3 brings within the purview of the Jones Act the sorts of watercraft considered vessels at the time Congress passed the Act. By including special-purpose vessels like dredges, §3 sweeps broadly, but the other prerequisites to qualifying for seaman status under the Jones Act provide some limits, notwithstanding §3s breadth. A maritime worker seeking Jones Act seaman status must also prove that his duties contributed to the vessels function or mission, and that his connection to the vessel was substantial both in nature and duration. Chandris , 515 U. S., at 376. Thus, even though the Super Scoop is a vessel, workers injured aboard the Super Scoop are eligible for seaman status only if they are master[s] or member[s] of its crew.
C
The Court of Appeals, relying on its previous en banc decision in DiGiovanni v. Traylor Brothers, Inc. , 959 F. 2d 1119 (CA1 1992), held that the Super Scoop is not a vessel, because its primary purpose is not navigation or commerce and because it was not in actual transit at the time of Stewarts injury. 230 F. 3d, at 468469. Neither prong of the Court of Appeals test is consistent with the text of §3 or the established meaning of the term vessel in general maritime law.
Section 3 requires only that a watercraft be used, or capable of being used, as a means of transportation on water to qualify as a vessel. It does not require that a watercraft be used primarily for that purpose. See The Alabama , supra , at 546; The International , 89 F., at 485. As the Court of Appeals recognized, the Super Scoop s function was to move through Boston Harbor, … digging the ocean bottom as it moved. 343 F. 3d, at 12. In other words, the Super Scoop was not only capable of being used to transport equipment and workers over waterit was used to transport those things. Indeed, it could not have dug the Ted Williams Tunnel had it been unable to traverse the Boston Harbor, carrying with it workers like Stewart.
Also, a watercraft need not be in motion to qualify as a vessel under §3. Looking to whether a watercraft is motionless or moving is the sort of snapshot test that we rejected in Chandris . Just as a worker does not oscillate back and forth between Jones Act coverage and other remedies depending on the activity in which the worker was engaged while injured, Chandris , 515 U. S., at 363, neither does a watercraft pass in and out of Jones Act coverage depending on whether it was moving at the time of the accident.
Granted, the Court has sometimes spoken of the requirement that a vessel be in navigation, id. , at 373374, but never to indicate that a structures locomotion at any given moment mattered. Rather, the point was that structures may lose their character as vessels if they have been withdrawn from the water for extended periods of time. Ibid.; Roper v. United States, 368 U. S. 20, 21, 23 (1961) ; West v. United States, 361 U. S. 118, 122 (1959) . The Court did not mean that the in navigation requirement stood apart from §3, such that a vessel for purposes of §3 might nevertheless not be a vessel in navigation for purposes of the Jones Act or the LHWCA. See, e.g. , United States v. Templeton , 378 F. 3d 845, 851 (CA8 2004) ([T]he definition of vessel in navigation under the Jones Act is not as expansive as the general definition of vessel (citations omitted)).
Instead, the in navigation requirement is an element of the vessel status of a watercraft. It is relevant to whether the craft is used, or capable of being used for maritime transportation. A ship long lodged in a drydock or shipyard can again be put to sea, no less than one permanently moored to shore or the ocean floor can be cut loose and made to sail. The question remains in all cases whether the watercrafts use as a means of transportation on water is a practical possibility or merely a theoretical one. Supra , at 1112. In some cases that inquiry may involve factual issues for the jury, Chandris , supra , at 373, but here no relevant facts were in dispute. Dutra conceded that the Super Scoop was only temporarily stationary while Stewart and others were repairing the scow; the Super Scoop had not been taken out of service, permanently anchored, or otherwise rendered practically incapable of maritime transport.
Finally, although Dutra argues that the Super Scoop is not a vessel under §902(3)(G), which is the LHWCA provision that excludes seamen from the Acts coverage, Dutra conceded below that the Super Scoop is a vessel under §905(b), which is the LHWCA provision that imposes liability on vessel owners for negligence to longshoremen. The concession was necessary because the Court of Appeals had previously held that §905(b)s use of the term vessel is significantly more inclusive than that used for evaluating seaman status under the Jones Act. 343 F. 3d, at 13 (quoting Morehead v. Atkinson-Kiewit , 97 F. 3d, at 607). The Court of Appeals approach is no longer tenable. The LHWCA does not meaningfully define the term vessel as it appears in either §902(3)(G) or §905(b), see n. 2, supra , and 1 U. S. C. §3 defines the term vessel throughout the LHWCA.
III
At the time that Congress enacted the LHWCA and since, Rev. Stat. §3, now 1 U. S. C. §3, has defined the term vessel in the LHWCA. Under §3, a vessel is any watercraft practically capable of maritime transportation, regardless of its primary purpose or state of transit at a particular moment. Because the Super Scoop was engaged in maritime transportation at the time of Stewarts injury, it was a vessel within the meaning of 1 U. S. C. §3. Despite the seeming incongruity of grouping dredges alongside more traditional seafaring vessels under the maritime statutes, Congress and the courts have long done precisely that:
[I]t seems a stretch of the imagination to class the deck hands of a mud dredge in the quiet waters of a Potomac creek with the bold and skillful mariners who breast the angry waves of the Atlantic; but such and so far-reaching are the principles which underlie the jurisdiction of the courts of admiralty that they adapt themselves to all the new kinds of property and new sets of operatives and new conditions which are brought into existence in the progress of the world. Saylor v. Taylor , 77 F. 476, 479 (CA4 1896).
The judgment of the Court of Appeals is reversed, and the case is remanded for further proceedings consistent with this opinion.
It is so ordered.
The Chief Justice took no part in the decision of this case.
1 The Shipping Act of 1916 defines the term vessel for purposes of the Jones Act. See 46 U. S. C. App. §801. However, the provision of the Jones Act at issue here, §688(a), speaks not of vessels, but of seamen. In any event, because we have identified a Jones Act seaman with reference to the LHWCAs exclusion, see 33 U. S. C. §902(3)(G) (a master or member of a crew of any vessel), it is the LHWCAs use of the term vessel that matters. And, as we explain, the context surrounding Congress enactment of the LHWCA suggests that Rev. Stat. §3, now 1 U. S. C. §3, provides the controlling definition of the term vessel in the LHWCA.
2 As part of its 1972 Amendments to the LHWCA, Congress amended the Act with what appears at first blush to be a definition of the term vessel: Unless the context requires otherwise, the term vessel means any vessel upon which or in connection with which any person entitled to benefits under this chapter suffers injury or death arising out of or in the course of his employment, and said vessels owner, owner pro hac vice, agent, operator, charter or bare boat charterer, master, officer, or crew member. 33 U. S. C. §902(21). However, Congress enacted this definition in conjunction with the third-party vessel owner provision of §905(b). Rather than specifying the characteristics of a vessel, §902(21) instead lists the parties liable for the negligent operation of a vessel. See McCarthy v. The Bark Peking, 716 F. 2d 130, 133 (CA2 1983) (§902(21) is circular and does not provide precise guidance as to what is included within the term vessel ).
3 Congress had used substantially the same definition before, first in an 1866 antismuggling statute, see §1, 14Stat. 178, and then in an 1870 statute provid[ing] for the Relief of sick and disabled Seamen, §7, 16Stat. 170.
4 During the 1947 codification, the hyphen was removed from the word watercraft. §3, 61Stat. 633.
5 See, e.g., The Alabama, 19 F. 544, 546 (SD Ala. 1884) (dredge was a vessel and subject to maritime liens); Huismann v. The Pioneer, 30 F. 206, 207 (EDNY 1886) (dredge was a vessel under §3); Saylor v. Taylor, 77 F. 476, 477 (CA4 1896) (dredge was a vessel under §3, and its workers were seamen); The International, 89 F. 484, 484485 (CA3 1898) (dredge was a vessel under §3); Eastern S. S. Corp. v. Great Lakes Dredge & Dock Co., 256 F. 497, 500501 (CA1 1919) (type of dredge called a drillboat was a vessel under §3); Los Angeles v. United Dredging Co., 14 F. 2d 364, 365366 (CA9 1926) (dredge was a vessel under §3 and its engineers were seamen).
6 See, e.g., Jerome B. Grubart, Inc. v. Great Lakes Dredge & Dock Co., 513 U. S. 527, and n. 1 (1995) (indicating that a stationary crane barge was a vessel under the Extension of Admiralty Jurisdiction Act); Southwest Marine, Inc. v. Gizoni, 502 U. S. 81, 92 (1991) (holding that a jury could reasonably find that floating platforms were vessels in navigation under the Jones Act); Jones & Laughlin Steel Corp. v. Pfeifer, 462 U. S. 523, 528530 (1983) (treating coal barge as a vessel under the LHWCA, 33 U. S. C. §905(b)); cf. Senko v. LaCrosse Dredging Corp., 352 U. S. 370, 372 (1957) (assuming that a dredge was a Jones Act vessel); id., at 375, n. 1 (Harlan, J., dissenting) (same).


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Fairmont is a small, urban, unicorporated neighborhood
located between Lockport and Joliet in Will County, Illinois. The region where
Fairmont was initially settled can be dated back far to the 1870's, with the population
during that time consisting of Eastern European and Irish immigrants who moved to
Illinois to work on the Illinois & Michigan Canal, the Rock Island Railroad, and the
Illinois Ship and Sanitary Canal. By the 1950's, Fairmont grew into a stable neighborhood,
mainly due to the large influx of African Americans moving to northern states after WW2.
Currently, Fairmont facing a change to its population, with a growing number of Hispanic residents
moving into the neighborhood. A neighborhood plan called the Chicago Metropolitan Agency for Planning
(CMAP) is currently in effect to help the future of Fairmont grow into a stronger tomorrow. Detailed below
is the history of how this strong neighborhood grew into a great community.
As far as we know, the earliest resident of Fairmont was a man
by the name of Isaac Nobes, an English immigrant who owned the Oak Hill Quarry in Joliet in
1873 and built his home on what is now named Nobes Avenue and Illinois Route 171. The Nobes
Mansion was a beautifully crafted building that reflected the architectual influence of the
original immigrants who lived there. However, over time this great monument was torn down after
it became too much work to keep up, and because it was too large or expensive for another family
to purchase, it was demolished. This is one of the few glimpses we have into Fairmonts past as there
is no documented history on the early years of Fairmont prior to 1940.
What drew many people to this location than anywhere else was the availability of work.
Major industrial opportunities were available for immigrants to take up, ranging from canal construction,
cemetary construction, and also railroad construction.
In the second wave of migration, Fairmont saw an increase of African American migrants moving from the south for the booming industry and wide range of available jobs found in Joliet at the time. Many residents described Fairmont as country living in the city, and chose to live in an unicorporated neighborhood for its rural charm, and cheap land prices. Residents of different ethnic backgrounds lived on the same block harmoniously, although there was some racial division at the thime, such as Oak Street, which historically has been a dividing line between White and African American homeowners.
"The Hill" is a cultural reference to a section of Fairmont and Forest Park where the majority of the African American residents lived. To outsiders "The Hill" may have just been known as Riley's Hill, a street with an incline that passes through the southern end of Fairmont. "The Hill" bares great significane and was indicative of the outside reception of Fairmont. While residents spoke of the neighborhood being racially integrated in the 1960's, interviews revealed that White residents lived North of Oak Street, and African American residents to the South. Currently "The Hill" is still a stigma that has been placed on Fairmont and Joliet. Anyone not from "The Hill" would consider it to be a dangerous area with a high concentration of poverty. While elements of this may be true, the crime does not appear to be coming from Fairmont itself, but from outside. The problems this neighborhood is facing are similar to that of any predominately low income neighborhoods in the country right now. A look into the actual neighborhood will reveal a number of hard working families with a strong commitment to a neighborhood that once thrived, and due to economic disinvestment is currently struggling.
The Fairmont neighborhood in the 1950's and 1960's was comprised of African American and Eastern European immigrants. In the 1970's the White population declined substantially, but not due to "white flight". Interviews with previous residents of Eastern European descent revealed positive memories of Fairmont as a place where people of different ethnicities lived harmoniously side by side. The out-migration of white residents can be attributed to the aging population needing different types of housing that Fairmont did not off at the time, including larger homes to raise a family or senior housing. Fairmont did not lose all of its White Eastern European population. North of Oak Street has many larger homes where long term residents have remained. Fairmont, South of Oak Street, does not have a varied housing stock. The majority of homes are what today's standards would consider 'starter homes' built inn the 1960's. The combination small square footage and size, the homes were likely not suitable for the second generation of Fairmont residents: people whose families immigrated there, were born in the neighborhood and raised there. Many of them reside in nearby areas, but have since left Fairmont with a fond memory of it.
The majority of Fairmont homes were on private wells until 1996 when a joint project was taken on between the Will County Department of Health and Lockport
Township. This project identified about 150 cross connected wells in the neighborhood. This meant private wells were still being used in conjunction with the Lockport Township
wells, which posed a risk of cross contamination if the private wells were to get contaminated. This was a particular threat because Fairmont has a lot of vacant lots and dumping
became a problem. This dumping could potentially contaminate the abandoned wells, thus contaminating the entire water system. Representatives went door to door to attempt to
convince residents to close their private wells. Since a private well is essentially free water, many were not interested in participating and only 1/3 of the wells were closed.
Additionally the Lockport Township Water Department does not have the authority to close the wells without consent, therefore, many were left open.
This became a serious problem when the Lockport Township Water Department had two community wells that were contaminated, presumably due to cross contamination. There was a concern
that abandoned wells on vacant properties were being used as sewers. Currently the cross contamination of wells in Fairmont is still a concern, as it is very expensive
to decontaminate the water system.
The Fairmont Community has been undergoing an increase of community activism, and a few projects are underway due to a partnership between the Will County
Land Use Department and the Fairmont Community Partnership. In 2008 a planning process began with the Chicago Metropolitan Agency for Planning (CMAP) in which the Land Use
Department applied for a Local Technical Assistance Grant. This grant allowed the Land Use Department to get the assistance of a planner from CMAP to put together a neighborhood
plan for Fairmont that plans for the future growth of the community. The plan was put together with the help of Fairmont residents and community leaders through a series of workshops
to identify the wants and needs of the residents.
To date, some projects have been completed. CMAP has completed the visioning process which resulted in the neighborhood plan, as well as using Fairmont as a study area showing how
infrastructure improvements can have a positive effect on the community for the Future Leaders in Planning Program (FLIP). A “safe routes to school” grant has been secured to
allow for the construction of a segment of sidewalk leading to the Fairmont School, and a community garden has been started next to the Fairmont Community Center.


Aaron Parecki / @aaronpk
Android's limit is 100 regions, iPhone is 20.
If your data set has more places than the limit,
you'll need to proactively register and un-register regions as the user moves around.
https://www.raywenderlich.com/95014/geofencing-ios-swift
What do you do if you have more than 20 regions you want to monitor?


|
My Project
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A container for parsed XML documents. More...
#include <xml.hh>
Public Member Functions | |
| ~DocumentStorage (void) | |
| Destructor. | |
| Document * | parseDocument (istream &s) |
| Parse an XML document from the given stream. More... | |
| Document * | openDocument (const string &filename) |
| Open and parse an XML file. More... | |
| void | registerTag (const Element *el) |
| Register the given XML Element object under its tag name. More... | |
| const Element * | getTag (const string &nm) const |
| Retrieve a registered XML Element by name. More... | |
A container for parsed XML documents.
This holds multiple XML documents that have already been parsed. Documents can be put in this container, either by handing it a stream via parseDocument() or a filename via openDocument(). If they are explicitly registered, specific XML Elements can be looked up by name via getTag().
| const Element* DocumentStorage::getTag | ( | const string & | nm | ) | const |
| Document* DocumentStorage::openDocument | ( | const string & | filename | ) |
Open and parse an XML file.
The given filename is opened on the local filesystem and an attempt is made to parse its contents into an in-memory DOM tree. An XmlException is thrown for any parsing error.
| filename | is the name of the XML document file |
| Document* DocumentStorage::parseDocument | ( | istream & | s | ) |
Parse an XML document from the given stream.
Parsing starts immediately on the stream, attempting to make an in-memory DOM tree. An XmlException is thrown for any parsing error.
| s | is the given stream to parse |
| void DocumentStorage::registerTag | ( | const Element * | el | ) |


+++
title = "Selenium"
linkTitle = "Selenium"
+++
{{< blocks/cover title="Selenium automates browsers. That's it!" subtitle="What you do with that power is entirely up to you." image_anchor="top" height="auto" color="selenium-green" >}}
Primarily it is for automating web applications for testing purposes, but is certainly not limited to just that.
Boring web-based administration tasks can (and should) also be automated as well.
{{< /blocks/cover >}}
{{< dismissible-banner color="green" title="Selenium Conference Chicago 2023" >}}
The next SeleniumConf will be an in-person event in Chicago, March 28-30, 2023. The CFP is now open!
Learn More
{{< /dismissible-banner >}}
{{< dismissible-banner title="Welcome!" alert="note" color="blue" background="selenium-cyan-20" >}}
Only [documentation](/documentation) gets translated into other languages. The rest of the website will remain in English.
Is there another translation you'd like to see? We're only supporting translations for which we have a dedicated translator.
If you'd like to volunteer to be a translator, read how [you can help](https://www.selenium.dev/getinvolved/#translating_site).
{{< /dismissible-banner >}}
{{< getting-started color="100" height="auto" title="Getting Started" >}}
{{% getting-started-item icon="icons/webdriver.svg" title="Selenium WebDriver" color="selenium-webdriver" url="/documentation/webdriver/" url_text="Read more" %}}
If you want to create robust, browser-based regression automation suites and tests, scale and
distribute scripts across many environments, then you want to use Selenium WebDriver, a
collection of language specific bindings to drive a browser - the way it is meant to be driven.
{{% /getting-started-item %}}
{{% getting-started-item icon="icons/ide.svg" title="Selenium IDE" color="selenium-ide" url="https://selenium.dev/selenium-ide/" url_text="Read more" %}}
If you want to create quick bug reproduction scripts, create scripts to aid in automation-aided
exploratory testing, then you want to use Selenium IDE; a Chrome, Firefox and Edge add-on that
will do simple record-and-playback of interactions with the browser.
{{% /getting-started-item %}}
{{% getting-started-item icon="icons/grid.svg" title="Selenium Grid" color="selenium-grid" url="/documentation/grid/" url_text="Read more" %}}
If you want to scale by distributing and running tests on several machines and manage multiple
environments from a central point, making it easy to run the tests against a vast combination of
browsers/OS, then you want to use Selenium Grid.
{{% /getting-started-item %}}
{{< /getting-started >}}


Write code or pick an example from the menu.
Code is automatically wrapped in an asynchronous function, so variables are not global (unless explicitly attached to the window
object) and await
can be used. The resolved value of the promise returned by the function is displayed — or rendered if it is an HTML/SVG element or fragment.
The playground has a global require
function (from d3-require) for loading UMD modules. require
uses jsDelivr by default, so a module can be loaded using e.g.
fecha = 'fecha@4' \require await
Alternatively, load ES modules from Skypack:
fecha = 'https://cdn.skypack.dev/fecha@4' load await
Then use the module:
fecha ~parse 'February 3rd, 2014' 'MMMM Do, YYYY'
print
operator prints to the JavaScript console, not the playground's result panel.| Shift + Enter | Run |
| Ctrl + Enter | Run |
| Ctrl + Space | Autocomplete |
| Alt + W | Increase editor width |
| Alt + Q | Decrease editor width |
| Alt + A | Reset editor width |
The playground uses the Ace editor with the default keyboard shortcuts.


James B. Gregory
Hello there! I'm a sophomore at Washington University in St. Louis studying Computer Science, Business, and Philosophy.
Here's some of what I've been working on:
– Twitter's 2020 #TakeFlight Hackathon
– Java Content Creator for Minecraft Realms
– Webmaster for WashU's DSP Chapter


Back to the Beach * * * (out of * * * * )
Directed by Lyndall Hobbs. Cast: Frankie Avalon, Annette Funicello, Lori Loughlin, Demian Slade, Tommy Hinckley, Connie Stevens, David Bowie, Don Adams, Bob Denver, Pee Wee Herman, Barbara Billingsley, Tony Dow, Jerry Mathers, Alan Hale, Edd Byrnes, Dick Dale and the Del-Tones. 1987 - 92 minutes. Rated PG (for mild profanity). Reviewed October 14, 1998.
If you've heard of Frankie Avalon, Annette Funicello, and their old "beach party" movies from the 1960's, such as 65's "Beach Blanket Bingo," then you know the definition of the word corny. Those beach films may have been kinda fun and harmless, but they were also undeniably dumb. Then in 1987, Frankie Avalon and Annette Funicello returned to their "beach party" movies, and made the best film they could have possibly done.
"Back to the Beach" stars Avalon and Funicello, playing their screen images, as a married couple living in Ohio. Avalon seems to have lost his spontaneity and is now an uptight car dealer, while Funicello is a spunky housewife who has an obsession with peanut butter. Together, they have two kids, a daughter, Cindi (Lori Loughlin) in her early twenties living in Malibu, and a teenage son named Bobby (Demian Slade) who dresses like a punk. At the start of the film, they realize that they desperately need a vacation, so while on their way to Hawaii, they stop over in Malibu to see Cindi, not knowing that her fiance (Tommy Hinckley) is living with her on a pier at the beach. After they get there, Annette and Frankie get in a fight when he meets up with an old pal from the beach, Connie Stevens, and appears to be having more fun with her. Figuring into the story are various musical numbers, a surfing contest, and, yes, beach parties.
By hearing the premise, "Back to the Beach" may sound exactly like Funicello's and Avalon's old movies, but it is not at all. "Back to the Beach," in fact, is one of the most entertaining comedy musicals I have ever seen, and is one of those movies that can be watched over and over (and I've seen it many times, to be sure).
One of the biggest surprises of the film is that the movie is a little bit more edgy than expected. Funicello and Avalon are good sports, and actually satirize their images to humorous effect.  Stealing the opening scenes of the film is Demian Slade, who is hilarious as their punk son. Remarking about his parent's dim-witted conversations, he observes, "It's like a conversation at the Kissinger's."
The music in "Back to the Beach" is perhaps the main star of the picture, and every song is memorable and fun to listen to. The musical numbers are also well choreographed and they give off a lot of spark and joy.
"Back to the Beach" is, by no means, a deep and thought-provoking motion picture. It knows that it is only a "beach" movie, and it makes the most of it by adding a winning, lightweight screenplay, charming performances by the whole cast, a delightful array of cameos (ranging from Barbara Billingsley to David Bowie to Pee Wee Herman), and some great music. And when you're dealing with Frankie and Annette, what more could you ask for?
- Copyright 1998 by Dustin Putman < Dustin Putman's Film Reviews >
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


Use Perl as a simple and powerful framework for your web site; this article will demonstrate how easy it is to get going and then customise a Plack application for your own needs.
Most Perl frameworks work with (or are migrating to) Plack.
Plack is Perl superglue for web frameworks and web servers. Plack sits between your code (whether you use a web framework or not) and the web server (Apache, Starman, etc). This means that you (and your framework) do not need to worry about specifics of a web server, and vice-versa.
You should already have followed the installing Perl instructions.
cpanm Plack # Please also run this as we will us it in the demonstration later cpanm Plack::App::TemplateToolkit
The next step is to create a .psgi configuration file which will allow us to return a web page.
# Tell Perl where our lib is (ALWAYS use this) use lib "$ENV{HOME}/perl5/lib/perl5"; # ensure we declare everything correctly (ALWAYS use this) use strict; # Give us diagnostic warnings where possible (ALWAYS use this) use warnings; # Allow us to build our application use Plack::Builder; # A basic app my $default_app = sub { my $env = shift; return [ 200, # HTTP Status code [ 'Content-Type' => 'text/html' ], # HTTP Headers, ["All is good"] # Content ]; }; # Return the builder return builder { $default_app; }
Save this to a file, called 1.psgi, then use the plackup command to start your web server from the command line as follows:
plackup 1.psgi
You will see:
HTTP::Server::PSGI: Accepting connections at http://SERVER_IP:5000/
Using your web browser, go to http://SERVER_IP:5000/, if you are developing on your desktop computer then http://localhost:5000/ will work. You should now see a page with 'All is good'. In fact if you go to any page this is what you will see, e.g. http://localhost:5000/any_page.html because we are always returning this, irrespective of the request.
You will notice that on the command line you can see the access logs for the web server, this is because Plack defaults to development mode and turns on a few extra middleware layers for you, specifically AccessLog, StackTrace and Lint.
To see StackTrace in operation comment out line 27 of 1.psgi by adding a hash (#) in front of it:
# ["All is good"] # ContentRestart your plackup command (type Ctrl+C to stop the process, then run
plackup 1.psgi
to start it).
Now in your web browser go to http://localhost:5000/ again and you will see
a StackTrace of the error. Note the main error message at the top of the page "response needs to be 3 element array, or 2 element in streaming". You can then follow each step of the trace, click on the 'Show function arguments' and 'Show lexical variables' links under any section of the trace to help debug the issue.
Remove the # and restart, so we have a working .psgi file again.
There are several command line arguments to the plackup command, running perldoc plackup
command will
show you the documentation. The most used is '-r' or '--reload' this tells plackup to monitor you .psgi file
(if you have a 'lib' directory along side your .psgi file it will also be monitored).
plackup -r 1.psgi
Plack already has many useful applications which you may want to integrate with your web portal, here for example we are using Plack::App::Directory to get a directory listing and to serve it's content as static files. We will use Plack::App::URLMap to choose which URL we want to 'mount' this application on.
use lib "$ENV{HOME}/perl5/lib/perl5"; use strict; use warnings; use Plack::Builder; # 'mount' applications on specific URLs use Plack::App::URLMap; # Get directory listings and serve files use Plack::App::Directory; my $default_app = sub { my $env = shift; return [ 200, [ 'Content-Type' => 'text/html' ], ["All is good"] ]; }; # Get the Directory app, configured with a root directory my $dir_app = Plack::App::Directory->new( { root => "/tmp/" } )->to_app; # Create a mapper object my $mapper = Plack::App::URLMap->new(); # mount our apps on urls $mapper->mount('/' => $default_app); $mapper->mount('/tmp' => $dir_app); # extract the new overall app from the mapper my $app = $mapper->to_app(); # Return the builder return builder { $app; }If you visit http://localhost/tmp/ in your browser you will now see a directory listing of '/tmp/' - also not http://localhost/anything_else.html still hits the default_app which we built.
There are many Plack::Apps and Plack::Middleware modules available to help with common tasks. We are going to look at Plack::App::TemplateToolkit, which parses files through the templating engine Template-Toolkit (TT). Images and other static content should not go through TT, so we are going to configure Plack::Middleware::Static to directly serve files with specific extensions. On top of this we want to have a nice looking page when there is a 404 (file not found), for this we will use Plack::Middleware::ErrorDocument. All the code we need to add is as follows:
# A link to your htdocs root folder my $root = '/path/to/htdocs/'; # Create a new template toolkit application (which we will default to) my $default_app = Plack::App::TemplateToolkit->new( root => $root, # Required )->to_app(); return builder { # Page to show when requested file is missing # this will not be processes with TT enable "Plack::Middleware::ErrorDocument", 404 => "$root/page_not_found.html"; # These files can be served directly enable "Plack::Middleware::Static", path => qr{[gif|png|jpg|swf|ico|mov|mp3|pdf|js|css]$}, root => $root; # Our application $default_app; }At this stage it is probably worth investigating one of the many web frameworks which offer PSGI support, so can be run with Plack. These frameworks offer far structure and support for doing more complex tasks. Have a look at Catalyst, Mojolicious or Dancer. The Perl.org web frameworks white paper discusses just a few of the advantages of using a framework.
Perl has a vast number of modules available for use on CPAN. The only real problem being to work out which are best to use. A good place to start is Task::Kensho which recommends current best practices.


You can take a first taste of how the plug-in operates by launching it in DEMO mode. To do so, simply follow the steps below:
http://localhost:8080/F4gGui/
You can follow the simple steps below:
/home/fit4green/Fit4Green/tomcat6/bin/shutdown.sh
/home/fit4green/Fit4Green/tomcat6/common/classes/config/*.properties
/home/fit4green/Fit4Green/tomcat6/bin/startup.sh
http://localhost:8080/F4gGui/
You can launch eclipse:
/home/fit4green/Fit4Green/eclipseThe workspace includes the source code of the main components of the plug-in. It is in effect the snapshot of the development environment that was used to built this live CD.
Please note that changes cannot be committed to the code repository, since it is just an export and not a checkout.
The default location for the FIT4Green log file is:
/home/fit4green/Fit4Green.logYou can change the location of this file along with other logging possibilities by updating the file:
/home/fit4green/Fit4Green/tomcat6/common/classes/config/log4j.properties
This is caused by the browser on Linux altering the line-end characters from the files which are most likely created on Windows. It can be solved by opening and saving each of the files once from within Linux.
The plug-in manages programmatically the couchDB databases; so there is no need to perform any administration tasks per se. Nevertheless, in case you wish to browse through the databases, CouchDB comes with a built-in interface called Futon. To load Futon in your browser, visit:
http://localhost:5984/_utils/index.html
The FIT4Green live CD includes the necessary libraries for running the plug-in at the three FIT4Green pilot sites: a service/enterprise portal at Eni S.p.A. (Italy), supercomputing grid at Juelich Supercomputing Centre (Germany) and cloud computing data centres at HP Italy Innovation Centre (Italy).
You can configure the plug-in for use with one of the already developed communication modules by editing the FIT4Green configuration file:
/home/fit4green/Fit4Green/tomcat6/common/classes/config/f4gconfig.properties
For more information on the communication module related to the service/enterprise portal at Eni, see here.
For more information on the communication module related to the supercomputing grid at Juelich, see here.


SpPlaybackEvent Constants Reference
| Declared in | SPTPlaybackEvent.h |
|---|
SpPlaybackEvent
Definition
typedef NS_ENUM(NSUInteger, SpPlaybackEvent ) {
SPPlaybackNotifyPlay,
SPPlaybackNotifyPause,
SPPlaybackNotifyTrackChanged,
SPPlaybackNotifyNext,
SPPlaybackNotifyPrev,
SPPlaybackNotifyShuffleOn,
SPPlaybackNotifyShuffleOff,
SPPlaybackNotifyRepeatOn,
SPPlaybackNotifyRepeatOff,
SPPlaybackNotifyBecameActive,
SPPlaybackNotifyBecameInactive,
SPPlaybackNotifyLostPermission,
SPPlaybackEventAudioFlush,
SPPlaybackNotifyAudioDeliveryDone,
SPPlaybackNotifyContextChanged,
SPPlaybackNotifyTrackDelivered,
SPPlaybackNotifyMetadataChanged,
};
Constants
SPPlaybackNotifyPlay
-
Playback has started or has resumed
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyPause
-
Playback has been paused
If the device is the active speaker (according to SpPlaybackIsActiveDevice()), the application should stop playing audio immediately.
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyTrackChanged
-
The current track or its metadata has changed
This event occurs when playback of a new/different track starts. If your application displays metadata of the current track, use SpGetMetadata() to reload the metadata when you receive this event.
Note : SPPlaybackNotifyTrackChanged is only sent if the current track was changed. SPPlaybackNotifyMetadataChanged is a more general event that can be used to detect all kinds of UI changes. If you display information about the previous and next tracks you should use SPPlaybackNotifyMetadataChanged to detect updates to those as well. For example, if the upcoming track is changed then SPPlaybackNotifyTrackChanged will not be sent but SPPlaybackNotifyMetadataChanged will be.
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyNext
-
Playback has skipped to the next track
This event occurs when SpPlaybackSkipToNext() was invoked or when the user skipped to the next track using Spotify Connect. It does not occur when playback goes to a new track after the previous track has reached the end. (Deprecated: Use SPPlaybackNotifyMetadataChanged instead. )
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyPrev
-
Playback as skipped to the previous track (Deprecated: Use SPPlaybackNotifyMetadataChanged instead. )
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyShuffleOn
-
“Shuffle” was switched on
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyShuffleOff
-
“Shuffle” was switched off
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyRepeatOn
-
“Repeat” was switched on
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyRepeatOff
-
“Repeat” was switched off
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyBecameActive
-
This device has become the active playback device
This event occurs when the users moves playback to this device using Spotify Connect, or when playback is moved to this device as a side-effect of invoking one of the SpPlayback…() functions.
When this event occurs, it may be a good time to initialize the audio pipeline of the application. You should not unpause when you receive this event – wait for SPPlaybackNotifyPlay.
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyBecameInactive
-
This device is no longer the active playback device
This event occurs when the user moves playback to a different device using Spotify Connect.
When this event occurs, the application should stop producing audio immediately. The application should not take any other action. Specifically, the application must not invoke any of the SpPlayback…() functions unless requested by some subsequent user interaction.
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyLostPermission
-
This device has temporarily lost permission to stream audio from Spotify
A user can only stream audio on one of her devices at any given time. If playback is started on a different device, this event may occur. If the other device is Spotify Connect-enabled, the event SPPlaybackNotifyBecameInactive may occur instead of or in addition to this event.
When this event occurs, the application should stop producing audio immediately. The application should not take any other action. Specifically, the application must not invoke any of the SpPlayback…() functions unless requested by some subsequent user interaction.
Declared In
SPTPlaybackEvent.h
. SPPlaybackEventAudioFlush
-
The application should flush its audio buffers
This event occurs for example when seeking to a different position within a track. If possible, the application should discard all samples that it has received in SpCallbackPlaybackAudioData() but that it has not played yet.
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyAudioDeliveryDone
-
The library will not send any more audio data
This event occurs when the library reaches the end of a playback context and has no more audio to deliver. This occurs, for instance, at the end of a playlist when repeat is disabled. When the application receives this event, it should finish playing out all of its buffered audio, including padding with silence if necessary, until it can report samples_buffered as 0 to SpCallbackPlaybackAudioData().
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyContextChanged
-
Playback changed to a different Spotify context
This event occurs when playback starts or changes to a different context than was playing before, such as a change in album or playlist. This is an informational event that does not require action, but may be used to update the UI display, such as whether the user is playing from a preset. (Deprecated: Use SPPlaybackNotifyMetadataChanged instead. )
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyTrackDelivered
-
Application accepted all samples from the current track
This is an informative event that indicates that all samples from the current track have been delivered to and accepted by the application. The track has not finished yet (\see SPPlaybackNotifyTrackChanged). No action is necessary by the application, but this event may be used to store track boundary information if desired.
Declared In
SPTPlaybackEvent.h
. SPPlaybackNotifyMetadataChanged
-
Metadata is changed
This event occurs when playback starts or changes to a different context, when a track switch occurs, etc. This is an informational event that does not require action, but should be used to keep the UI display updated with the latest metadata information.
Declared In
SPTPlaybackEvent.h
.


- elapsedTime - Variable in class core.GreedyLoose
-
The elapsed time to make the association.
- end - Variable in class utils.functional.Range.RangeGenerator
-
The end.
- equals(Object) - Method in class core.Operation
-
- equals(Object) - Method in class utils.tuples.Pair
-
- equals(Object) - Method in class utils.tuples.Triplet
-
- ErrorLevel - Enum in gui.views
-
The Enum ErrorLevel wraps log4j levels in an enum.
- ErrorLevel(Level) - Constructor for enum gui.views.ErrorLevel
-
Instantiates a new error level.
- exists(int, int, int, int) - Method in class core.associations.Associations
-
- exists(int, int, int, int) - Method in class core.associations.BaseAssociations
-
Check if an association from (fragment1, group1) to (fragment2, group2) already exists.
- export(String) - Method in class exporter.H2Exporter
-
Export the data to the database.
- export(String, String) - Method in class exporter.JDBCExporter
-
Export the loose association to the connection that
can be created by classForName and url.
- export(Connection) - Method in class exporter.JDBCExporter
-
Export the loose association to the connection.
- export(String) - Method in class exporter.SqliteExporter
-
Export the data to the database.
- export(String) - Method in class gui.controllers.ProblemController.ProblemWorker
-
Export.
- exporter - package exporter
-
- extendAssociation(Row, List<Integer>) - Method in class core.GreedyLoose
-
Extend an association with another fragment checking that
this new group in the fragment doesn't break any property.
- extractAttributes(ResultSet) - Method in class core.tables.JDBCTable
-
Extract attributes.


--- title: fastbook-questions keywords: fastai sidebar: home_sidebar summary: "A tiny script to extract the end-of-chapter fastbook questions to their own notebooks." description: "A tiny script to extract the end-of-chapter fastbook questions to their own notebooks." ---
This script extracts the end of chapter questionnaires from each of the chapter notebooks and puts them into their own notebooks with additional markdown cells where answers can be written. Also nothing stopping you importing and creating code cells as part of your answers.
My suggestion is you clone the fastbook repo and run the script there to make your own copy for private use.
The questions clearly remain copyright of Jeremy Howard and Sylvain Gugger. Please remember that the fastbook text (including all markdown cells in the notebooks and other prose) is not licensed for any redistribution or change of format or medium, other than making copies of the notebooks or forking this repo for your own private use. No commercial or broadcast use is allowed.
This script was produced using nbdev.
pip install fastbook_questions
Call fastbook_extract
from the command line to extract all the questions to their own notebooks with cells for your answers.
With no arguments it will look for the fastbook chapters and produce outputs in the current directory.
Use arguments to control where to look for inputs and put the outputs.
usage: fastbook_extract [-h] [--path PATH] [--save_path SAVE_PATH]
[--xtra XTRA]
optional arguments:
-h, --help show this help message and exit
--path PATH Path to book notebooks (default is current directory)
(default: None)
--save_path SAVE_PATH
Path for saving output (default is current directory)
(default: None)
For example:
fastbook_extract --path ~/fastbook --save_path ./fbq
Will look for the fastbook chapters in ~/fastbook and save the output to a directory called fbq (which will be created if it doesn't exist).


HTML
HyperText Markup Language
Last time
- Source code control with git
- File; commit; branch; repository; remote
- init/clone; add; commit; (pull then) push
Today
- HTML tags
- What makes a good HTML page
- Web front-end frameworks
(In groups)
- Introduce yourselves
- List the HTML tags you are familiar with
- One person to create a text file with them in
What makes a good HTML page?
- Standards compliant HTML5 W3C
- Accessible: alt tags; contrast; WCAG; ARIA
- Mobile-friendly: viewport; lightweight; responsive
- Quick-loading
- Review with e.g. Lighthouse
Web Front-end Frameworks
- Provide pre-written HTML and JavaScript
- Apply styles with CSS classes
- Make it easy to make things look nice
- Make it easy to make things responsive
- Can sometimes be heavy (large file size, slow)
- e.g. Bootstrap and alternatives


By John Doe
By Poonam Verma
By Rock William
By John Doe
By Sabnam SIngh
By John Doe
By Poonam Verma
By Rock William
By John Doe
By Joy Dua
By Manreet Kaur
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0; else noTestCases">
Select a Build
{{ build.name }}
Select a Browser and Version
Loading browsers...
{{
browser | capitalize
}}
{{ version }}
Enable Cross browser
Propagate events
Select a Platform
{{ platform.name }}
Enter a Extra Host (optional)
There are not associated test cases. Cannot run Test Plan


Answer TRUE or FALSE.
TYPE[QCHOICE] hashing works well for disk-based hash systems.
Managing a bunch of linked lists is not so good on disk.
Otherwise, hashing works fine on disk.


Don't steal our stuff please. We took a whole 24 hours to build this for the Huskies Hack Hackathon. Please use this with care. Since this is only a prototype.


The Northern Powerhouse will “splutter and die” if youngsters in Manchester and Liverpool lack the skills to sustain it, Her Majesty’s Chief Inspector,
Sir Michael Wilshaw said in a speech today
.
Sir Michael spoke out amid concerns about declining secondary school performance and pupil attainment in the 2 cities and many of their surrounding towns.
Three in 10 secondary schools in Manchester and 4 in 10 in Liverpool are judged by Ofsted to be inadequate or require improvement.
The proportion of Manchester’s pupils gaining 5 GCSEs grade A* to C, including English and mathematics, declined from 51% 2 years ago to 47% currently. In Liverpool the percentage fell from 50% to 48% over the same period.
In his
Annual Report published in December
, Sir Michael called England “a nation divided at age 11”, referring to the discrepancy between the performance of schools in the North and Midlands and those in the South. In today’s speech to the Institute for Public Policy Research (IPPR), Sir Michael said that the extent of this underperformance presents a very real risk to the government’s vision of a Northern Powerhouse.
He said:
Manchester and Liverpool are at the core of our ambitions for a Northern Powerhouse. They are the engines that could transform the prospects of the entire region. But as far as secondary education is concerned they are not firing on all cylinders. In fact they seem to be going into reverse.
Comparing the performance of secondary schools in the capital with those in the North West’s 2 major cities, Sir Michael said:
Yes, London has advantages that other cities lack, but what of Liverpool or Manchester? Are you really telling me that they lack swagger and dynamism? That they cannot succeed in the way London has succeeded? These are the cities that built Britain. They pioneered a modern, civic education when students at certain other universities spent most of their time studying the New Testament in Greek.
Sir Michael called on all those with power and influence to make a real difference in galvanising change and supporting much-needed improvements in secondary education across Manchester and Liverpool.
He said:
I am calling on local politicians, be they mayors, council leaders or cabinet members, to stand up and be counted, to shoulder responsibility for their local schools, to challenge and support them regardless of whether they are academies or not. I’m calling on them to be visible, high-profile figures that people can recognize as education champions. I am calling on them to make education in general – and their underperforming secondary schools in particular – a central target of their strategy for growth.
Unless they do, I fear Manchester and Liverpool will never become the economic powerhouses we want them to be. We cannot fight for social mobility with political immobility. Politicians need to act. It requires grit, imagination, faith and bloody mindedness – qualities that, fortunately, I really don’t think are less common in the North than they are down South.
Ofsted’s Regional Director for the North West, Chris Russell, has echoed Sir Michael’s concerns in an
open letter sent today to all those responsible for overseeing education provision across Greater Manchester
.
In this letter, Mr Russell says too many pupils attending secondary schools in places like Salford, Rochdale, Oldham and Manchester itself are being left ill-prepared for the next phase of their education, training or employment.
This level of performance presents not only a worrying picture for the employment prospects of young people in one of the United Kingdom’s major cities, it also presents a real risk to the economic and social stability of the area as a whole.
The decline in the attainment of secondary school pupils is particularly disappointing given the significant level of investment through the Greater Manchester Challenge. This was established to improve outcomes for children and young people, but the legacy of the £50 million campaign appears to be one of decline rather than improvement.
Mr Russell has written a similar
open letter to those responsible for education provision in Knowsley
, where there is not a single good or outstanding secondary school. In 2015, almost two thirds of Knowsley’s school leavers failed to achieve 5 or more GCSE grades A* to C, including English and mathematics.
Notes to editors:
-
Read
Sir Michael’s speech to the IPPR
.
-
Read the
letters to Greater Manchester and Knowlsey
.
-
The Office for Standards in Education, Children’s Services and Skills (Ofsted) regulates and inspects to achieve excellence in the care of children and young people, and in education and skills for learners of all ages. It regulates and inspects childcare and children’s social care, and inspects the Children and Family Court Advisory and Support Service (Cafcass), schools, colleges, initial teacher training, work-based learning and skills training, adult and community learning, and education and training in prisons and other secure establishments. It inspects services for looked after children, safeguarding and child protection.


Android: Kotlin/Java - Apple: Swift/iOS - Fastest runtime - Slowest devtime
Language: Dash - Cross platform - Well loved - Made by Google
Language: C# - Cross platform - Microsoft - Compiled
Walks like an app - quacks like an app - BUT it's a website
PWA - Android Play Store - access background service - CCT
Angular - WebViews - Cordova
npm install -g expo-cli
expo init expoProject
cd expoProject
npm start
npm install ionic -g
ionic start ionicApp --type=react
ionic serve --devapp


--- title: About FSH linkTitle: About menu: main: weight: 10 --- {{< blocks/cover title="About FSH" image_anchor="bottom" height="min" >}}
A simple, declarative language for creating FHIR Resources and Implementation Guides.
{{< /blocks/cover >}} {{% blocks/lead color="white"%}} FHIR Shorthand (FSH) is a domain-specific language for defining the contents of FHIR Implementation Guides (IG). The language is specifically designed for this purpose, simple and compact, and allows the author to express their intent with fewer concerns about underlying FHIR mechanics. FSH can be created and updated using any text editor, and because it is text, it enables distributed, team-based development using source code control tools such as GitHub. To get started with FSH try it out [online](/coming-soon) or get started with the [SUSHI Command Line Interface](/docs/sushi). {{% /blocks/lead %}}


from osrm import AccessIsochrone as OSRMAccessIsochrone
from shapely.geometry import MultiPolygon
[docs]class AccessIsochrone(OSRMAccessIsochrone):
"""
Compute an access isochrone from an origin point with a given `ScenarioAPI`
Parameters
----------
api : ScenarioAPI
API to be queried for access Isochrone
point_origin : 2-floats tuple
The coordinates of the center point to use as (x, y).
points_grid : int
The number of points of the underlying grid to use.
size : float
Search radius (in wgs84 degrees)
"""
def __init__(self, api, point_origin, points_grid=500, size=0.4):
super(AccessIsochrone, self).__init__(point_origin, points_grid, size,
url_config = api.config)
[docs] def get_center(self):
"""Return center point used in isochrone calculations"""
return self.center_point
[docs] def get_grid(self):
"""Return GeoDataFrame of grid used in duration calculations, snapped to the road network"""
return self.grid
[docs] def get_durations(self):
"""Return durations table retrieved from OSRM"""
return self.times
[docs] def render_contour(self, n_levels):
"""Return GeoDataFrame of MultiPolygon contours for a specified number of levels """
contours = super(AccessIsochrone, self).render_contour(n_levels)
## osrm.AccessIsochrone.render_contour returns a GeoDataFrame with mixed
## Polygon/Multipolygon geometries. This ensures all geometries are multipolygons
## and renames the `time` field which is a special column for many data types and
## causes issues on export
contours.geometry = contours.geometry.apply(lambda g: MultiPolygon([g]) if g.type == "Polygon" else g)
contours.rename(columns={"time": "duration"}, inplace=True)
return contours


Appearance
The lid now has a blue color, only the stripes on the lid are left of the red. The lower part remained unchanged. The number of mirrors has also increased.


How can i generate multiple borders ??
box-shadow
method this will add your box-shadow
under the previous.A second way to generate multiple border
outline
instructions.outline
method will create a border above your border
but this method can only create two borders but you can stylized your borders as you want.


7 Going Out Outfit Ideas to Survive Chilly Winter Nights
When the harsh winds and frigid evenings make their entrance, it can be hard to conjure up visions of going-out looks that won't leave you frozen. What do you wear to a night out with friends or a significant other when the Weather App says 24-degrees Fahrenheit and four inches of snow? For the sartorial set, turtlenecks at the club is no issue and sporting leather trousers at the bar is ideal. Ahead, look to 7 winter going-out looks to recreate this season.
Double Leather
Edgy is in, and so is leather. From trousers to shirts, the options are endless. For your next cocktail hour, look to doubling up on the cool-girl factor with an oversized biker jacket and updated pencil skirt.
Charlie Crinkled-Leather Biker Jacket
GRLFRND net-a-porter.com $750.00 SHOP NOW
Add a little texture and edge to your ensemble with Grlfrnd's Charlie jacket. Not too fancy for brunch, and not too basic for late nights.
Vegan Leather Pencil Skirt
Commando intermixonline.com $118.00 SHOP NOW
Set aside your cotton and wool iterations for an office appropriate pencil skirt that packs a punch. This version from Commando is all you'll need for winter events.
Textural Bar Hopping
Picture this: showing up to a girl's night out with your favorite chunky knitwear in place. What could be chicer? Style a heavy sweater with embossed trousers for a cool-girl textural element.
Downy Knitted Turtleneck Sweater
The Range net-a-porter.com $375.00 SHOP NOW
Lock in the heat on your next night out with The Range. This expertly-crafted knit is made of ultra plush cotton and wool to keep you warm all season long.
Croc-Embossed Faux Leather Trousers
Pinko farfetch.com $155.00 SHOP NOW
Put aside your staple smooth-leather trousers in favor of Pinko's updated croc-embossed iterations.
Mink About It
With a fur coat, the styling options are endless, especially during the cold-weather months. Pair a fluffy fur (or faux) with skinny jeans and knee-high boots that scream, "I'm warm and stylish!"
Janet Faux Fur Cropped Jacket
Stand Studio farfetch.com $366.00 SHOP NOW
Whatever you wear with this coat will become instantly elevated.
The One-and-Done
There's nothing easier than a jumpsuit–especially in the winter time. It eliminates going-out jitters in a quick and easy sartorial formula. Opt for a full-length version to keep your legs and arms covered.
Leather Jumpsuit
Gestuz intermixonline.com $700.00 SHOP NOW
A luxe jumpsuit crafted in smooth brown leather for all your favorite ankle boot pairings.
Ulani Pointy Toe Bootie
Marc Fisher nordstrom.com $188.95 SHOP NOW
Featuring a walkable heel, pointed toe, and heather gray hue, Marc Fisher's boots add a subtly cool touch to every going-out look.
Make a Statement
Top off your favorite pair of waist-cinching denim with a textural statement blouse that adds dimension and volume. This season, we're feeling black blouses with exaggerated sleeves.
Cashmere Wrap Top
Johanna Ortiz modaoperandi.com $950.00 SHOP NOW
Exaggerated proportions and long sleeves are exactly what Johanna Ortiz brings to the table with this cashmere blouse.
Folded Baggy Boyfriend Jeans
Raey matchesfashion.com $152.00 SHOP NOW
Raey's boyfriend jeans are both laid-back and directional, ideal for teaming with tucked-in statement tops for a girl's evening out on the town.
Traditional, With a Twist
You really can't go wrong with a sweater dress–its versatility is endless. Style it with leather knee-high boots on your next night out, and watch as heads turn as you enter the room both sophisticated and cozy.
Cashmere and Wool Sweater Dress
Vince nordstrom.com $425.00 SHOP NOW
Long sleeves, a ribbed texture, and a midi length: this luxe sweater dress from Vince looks great with boots, mules and sneakers.
Florals in Winter; Groundbreaking
Floral prints in the spring and summer are obvious and necessary, but playing with this pattern during the winter is unexpected and sleek. Keep this weather-appropriate by complementing with an overly embellished outerwear piece.
Foxy Leather Coat
Saks Potts farfetch.com $1,999.00 SHOP NOW
Stand out for all the right reasons in the cult-favorite Foxy coat from Saks Potts. You won't regret this one, especially when you're bundled up in line for your favorite lounge.
Appliquéd Pleated Floral-Print Dress
Prada net-a-porter.com $2,620.00 SHOP NOW
With an allover whimsical, '90s-inspired print, Prada's dress is ideal for layering, and a great conversation starter. Wine, anyone?


latexpdf: Convert Tables to PDF or PNG
Converts table-like objects to stand-alone PDF or PNG.
Can be used to embed tables and arbitrary content in PDF or Word
documents. Provides a low-level R interface for creating 'LaTeX'
code, e.g. command() and a high-level interface for creating PDF
documents, e.g. as.pdf.data.frame(). Extensive customization is
available via mid-level functions, e.g. as.tabular(). See also
'package?latexpdf'. Support for PNG is experimental; see
'as.png.data.frame'. Adapted from 'metrumrg'
<http://r-forge.r-project.org/R/?group_id=1215>.
Requires a compatible installation of 'pdflatex',
e.g. <https://miktex.org/>.
| Version: |
0.1.6 |
| Published: |
2018-10-26 |
| Author: |
Tim Bergsma |
| Maintainer: |
Tim Bergsma <bergsmat at gmail.com> |
| License: |
GPL-3 |
| NeedsCompilation: |
no |
| CRAN checks: |
latexpdf results |
Downloads:
Reverse dependencies:
Linking:
Please use the canonical form
https://CRAN.R-project.org/package=latexpdf
to link to this page.


Uniform Interval: when checked, funnels are arranged in orbit with equal separation.
Setting dialog
Shape
Shape of funnel:
(Leave empty): use the particle's shape as funnel
random: randomly selects from basic shapes
User defined shapes: {shape1,shape2,...,shapeN}
Text: *YourText
External text, image or video: path#, replace # with a PathID.
Basic shape with tweaks: &#,r&{list_of_shapes}
# is the size of funnel (a number).
list_of_shapes is like Circle,Square,Triangle. Funnel shape will be chosen from the list.
Text with tweaks: &font,decoration(0~4),color2,r&*YourText
font: a font face name, like Lucida Sans Unicode
decoration(0~4): add border or shadow
color2: a hex color code like 0xffaa33 for border/shadow
Color
Color setting for ring and funnel.
random: randomize all color.
{color1,color2,...,colorN}: select a color from the list in order. Each color is a hex code.Add a minus sign before a hex code(or random) to reserve that color for the ring only.
OrbitalSpd
Angular speed of funnels.
Format: {lower limit,upper limit,option}
When option=1, there is 50% chance that the sign of angular speed will be reversed.
Sync with orbit
A funnel should stay in a fixed position relative to the particle, like a geosynchronous satellite orbiting around Earth. Need to set OrbitalSpd to 0 for perfect match.
SpinSpd
Speed of funnel's self-spin around the z-axis.
Format: {lower limit,upper limit,option}
When option=1, there is 50% chance that the sign of speed will be reversed.
Ring{Size_Width}
Sets ring size and ring thickness.
Format: {size,thickness}
When only a single value is given, the value will be ring size and 2% of that value will be the thickness.
RingShape
Built-in basic shapes only.
random, or a list like {Circle,Square,Pentagon} which utilize the shapes one-by-one
Use &r&{Circle,Square,Pentagon} to select randomly from the list.
RingRotSpd
Spinning speed of the ring(s)
Format: {lower limit,upper limit,option}
When option=1, 50% chance to reverse the sign of value.
Sync Ring Rot
Similar to Sync with orbit, but applies to ring.
RingSplitAng
The angle difference between multiple rings.
Alpha_Mag
Transparency and magnification for funnel and ring.


Webhook URL
Message
Rate (ms)
Cooldown (ms)
Stop
Start
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Simple Webhook Spammer By Larsy
My Github: https://github.com/LarsyDev
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━


{% load static %}
The lockbox code is {{listing.lockBoxCode}}
The location is occupied.
The location is not occupied.


My name is Jared. I am a second-year student at Cornell University pursuing a major in Computer Science and a minor in Computing in the Arts.
I write code. I arrange music. Occasionally, I even spit a verse (or a few).
I enjoy creating. I enjoy the process of developing ideas, working to create them, and seeing them brought to fruition. I began studying Computer Science in the hopes of eventually finding work in music technology/software development, an area which blends both my passion for music and my love of all things digital.


Living at the margins of society, the worldwide population of stateless people is estimated to be around 10 million according to the United Nations High Commission on Refugees. The data includes estimated statistics on the Dominican Republic, India and Indonesia. In recent years the number of stateless people has decreased in countries such as Iraq and the Russian Federation.
810000
800000
Data source: UNHCR 2013
700000
Produced by Jeremy C.F. Lin
600000
506197
400000
267559
210000
178000
160000
200000
120000
93000
91281
0
Myanmar
Ivory Coast
Thailand
Latvia
Dominican Republic
Russian Federation
Syrian Arab Republic
Iraq
Kuwait
Estonia
Viewed as “non-humans” or “aliens” by some politicians in Myanmar, the Rohingya people make up one of the world’s largest stateless populations. Other sizable stateless populations globally include the the Ivory Coast and Thailand. “It’s a form of punishment more primitive than torture” said Earl Warren, late U.S. Supreme Court chief justice.
Statelessness is also a gendered issue. Nearly thirty countries around the world, many in the Middle East and North Africa, maintain discriminatory laws when it comes to nationality, making it nearly impossible for women to bestow their nationality to their children.
Without access to identity documents and the ability to register a marriage, death, or birth of a child, stateless people may not open a bank account, own property, find legal employment, access health services or enroll in school.
As Dean of the School of Public Affairs at University of Minnesota said, “they -- and their children, and their children's children -- live in a state of permanent uncertainty.”
As one stateless woman in Kuwait told representatives of the Women’s Refugee Commission, "I cannot get married. The court will refuse to allow me to sign a marriage certificate because I do not exist."
Though many governments have ratified the Convention on the Elimination of all forms of Discrimination against Women (CEDAW) and are technically bound by the tenets of the Universal Declaration of Human Rights, inequality and statelessness continues.
Ali Hassan Abdullah Abdulemam, a blogger and activist from Bahrain, found out his Bahraini citizenship had been revoked in February 2015.
Globally, statelessness is an invisible problem but there is reason to hope. In the last four years more countries have accepted a 1961 convention reducing statelessness than in the previous four decades. Yet despite aims by the UNHCR to encourage governments to change laws and policies, ten million people around the world continue to be stateless.


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As part of my work in the Michigan Information Interaction Lab I am developing a system that allows users to control the devices in the lab and interact with them. We called the project Jarvis, given its resemblance to the character from the Iron Man movies. My role is to design and program the Jarvis Restful API that our various applications are using to control the lab.
Our current integrations are with Slack, Trello, Alexa, and the lab device screens. Slack and Trello are used for team collaboration in our lab. Jarvis can pull information from both platform and display it through one of our apps. Alexa is used as an input source to feed commands to Jarvis as a voice alternative to our web apps.
In order to have Jarvis allow users to control the lab device screens, we designed a bird's eye view interface that allows a lab user to drag and drop the content shown on one device screen to another.
We started with a low-fi paper prototype that represented the lab layout with all the permanently residing devices.
Next, we developed medium-fi prototypes in sketch that illustrated the actual screen a user would see
The final design was finished and the interface were developed. We integrated it into a service we have called XDBrowser, which can control screen content via web sockets. Through the Jarvis interface, a user can drag content from one screen to another, which tells XDBrowser to reflect the changes in the target device.
Another feature of Jarvis is to allow lab members to log in and out of the lab. We developed a user interface for this purpose and hooked it up to the Jarvis Restful API.
We are further expanding Jarvis to give it more control over the lab. One area we are currently exploring is to enable Jarvis to submit crowd-sourcing requests and manage crowd worker tasks.


Before we can rigorously develop a good foundation for the concepts of functions and limits we need some set theoretic definitions that will presumably come in handy later.
An \(\varepsilon\)-neighborhood of a point \(z_0\), often denoted as \(N_\varepsilon (z_0)\) is the set of all points \(z\) lying inside but not on a circle of radius \(\varepsilon\) centered at \(z_0\).
\[N_\varepsilon (z_0) = \{z \in \mathbb C : \vert z - z_0 \vert \lt \varepsilon\}\]
It is understood that when we speak of a neighborhood we are speaking of an \(\varepsilon\)-neighborhood. Also note that the value of \(\varepsilon\) is unspecified -- it could be 0.1, 1000, or 42 -- whatever we need for the current circumstance.
Topologists are fond of calling these structures open balls .
A deleted neighborhood , also called a punctured disk , of a point \(z_0\) is an \(\varepsilon\)-neighborhood of \(z_0\) that does not contain \(z_0\). In set-theoretic notation we can write the deleted neighborhood of \(z_0\) as \(N_\varepsilon (z_0) \setminus \{z_0\}\)
An interior point is a point \(z_0\) of a set \(S\) such that there exists some neighborhood of \(z_0\) that is entirely contained in \(S\). Or, \(\exists \varepsilon > 0\) such that \(N_\varepsilon (z_0) \subseteq S\)
An exterior point is a point \(z_0\) such that there exists some neighborhood of \(z_0\) containing no points in \(S\). Or, \(\exists \varepsilon > 0\) such that \(N_\varepsilon (z_0) \not\subseteq S\)
A boundary point is a point \(z_0\) of a set \(S\) that is neither an interior point of \(S\) or an exterior point of \(S\). Equivalently, a boundary point is a point \(z_0\) such that every neighborhood of \(z_0\) contains at least one point in \(S\) and at least one point not in \(S\).
Or, \(\forall \varepsilon > 0,\, \exists p_1, p_2 \in N_\varepsilon (z_0)\) such that \(p_1 \in S\) and \(p_2 \not\in S\).
The boundary of a set \(S\) is the set of all the boundary points of \(S\).
An open set is a set that contains none of its boundary points. A set is open if and only if each of its points is an interior point.
A closed set is a set that contains all of its boundary points.
Note that not being open does not imply being closed! E.g. if a set contains a single boundary point it is not open, but is not closed either. Also note that a set can be both open and closed. For example, \(\mathbb C\) has no boundary points, so it contains all of them, yet each of its points is an interior point, so it is both open and closed. A tongue in cheek name for such sets is clopen .
The closure of a set is the closed set consisting of all points in \(S\) together with the boundary of \(S\), denoted by \(\operatorname{Cl}(S)\). The closure can be thought of as an operation to a set.
A connected set is an open set \(S\) such that any pair of points \(z_1, z_2 \in S\) can be joined by a polygonal line that lies entirely in \(S\).
A polygonal line is a finite number of line segments joined end to end.
A domain is a nonempty, open, connected set. Note that any neighborhood is a domain.
A region is a domain together with none, some, or all of its boundary points.
A set is bounded if every point in \(S\) lies inside some circle \(\vert z \vert = R\) with some finite radius \(R\). Otherwise, \(S\) is unbounded .
An accumulation point of a set \(S\) is a point \(z_0\) such that every deleted neighborhood of \(z_0\) contains at least one point of \(S\). Note that closed sets contain all of their accumulation points.
Is the set \(S = \{z \in \mathbb C : \operatorname{Re}z \geq 1, \text{ and } \operatorname{Im}z > 2\}\) illustrated below, open, closed, or neither? How can a set be neither open or closed??
We ask ourselves, does \(S\) contain any of its boundary points (is it open?) No, \(S\) contains at least one of its boundary points, so it is therefore not open.
Does \(S\) contain all of its boundary points (is it closed?) No, \(S\) is missing a part of its boundary -- namely the \(\operatorname{Im}z = 2\) boundary. So therefore \(S\) is not closed.
We can then see that the definitions of open and closed are not opposites -- A set can be neither open nor closed.
Now consider the set \(\mathbb C\). First, we ask if \(\mathbb C\) has any boundary points. It doesn't. Does \(\mathbb C\) contain all of its 0 boundary points? Yes. Also, \(\mathbb C\) doesn't contain its 0 boundary points -- because they don't exist!
\(\mathbb C\) is therefore both open and closed!What about \(\emptyset\)? It certainly does not contain any of its boundary points -- namely because it contains absolutely nothing! However, as there are no boundary points to contain, it contains all of them. So the empty set is both empty and closed!
Now what about \(S = \{z \in \mathbb C : \operatorname{Re}z \geq 1, \text{ and } \operatorname{Im}z \geq 2, z \neq 0\}\) illustrated below?
Again, there's a boundary point that is not in \(S\), so \(S\) is not closed, but it's also not open, as \(S\) does contain some of its boundary points.
Now what if we take \(T = S \cup \{0\}\), or rather, include 0 in the above set?
Now, \(T\) does contain all of its boundary points, so \(T\) is closed! We also ask ourselves again if \(T\) is open, but because it contains at least one of its boundary points, \(T\) is not open.
Finally, consider the set \(S = \{z \in \mathbb C : \operatorname{Re}z > 1, \text{ and } \operatorname{Im}z > 2\}\).
This set is open because it does not contain any of its boundary points.
Now consider the set \(S = \{z \in \mathbb C : \operatorname{Im}z > 1\}\) drawn below
We ask ourselves a series of questions about \(S\).
Now consider the region bounded by the inequality
\[\vert z - 4 \vert \geq \vert z \vert\]
Graphing certainly makes interpreting regions in the complex plane easier, so we work on simplifying the above inequality into something we can work with.
First, we use the definition of the modulus of complex numbers
\[\sqrt{(x - 4)^2 + y^2} \geq \sqrt{x^2 + y^2}\]
Since the modulus is by definition positive, we can square both sides without committing a mathematical sin
\[\begin{aligned} (x - 4)^2 + y^2 &\geq x^2 + y^2\\ (x - 4)^2 + \cancel{y^2} &\geq x^2 + \cancel{y^2}\\ x^2 - 8x + 16 &\geq x^2\\ \cancel{x^2} - 8x + 16 &\geq \cancel{x^2}\\ 16 &\geq 8x\\ 2 &\geq x\\ \end{aligned}\]
In other words, we are dealing with the set \(S = \{z \in \mathbb C : \operatorname{Re}z \leq 2\}\)
This set is closed, not open, not a domain, and not bounded.
What about \(\displaystyle S = \left\{z \in \mathbb C : z \neq 0, 0 \leq \operatorname{arg}z \leq \frac{\pi}{4}\right\}\)?
This set is not open, not closed (\(z \not\in S\)), not a domain, not bounded, but is connected.
Now consider the region of the complex plane defined by the inequality \(\vert \operatorname{Re}z \vert \lt \vert z \vert\). Using our brains (gasp) we might be able to convince ourselves that this inequality is true unless \(z \in \mathbb R\). However, to make sure, we perform the algebra.
\[\begin{aligned} \vert \operatorname{Re}z \vert &\lt \vert z \vert\\ \vert x \vert &\lt \sqrt{x^2 + y^2}\\ \vert x \vert^2 &\lt x^2 + y^2\\ \cancel{\vert x \vert^2} &\lt \cancel{x^2} + y^2\\ 0 &\lt y^2\\ 0 &\lt \pm y\\ \end{aligned}\]
Another way of defining this region might be \(S = \left\{z \in \mathbb C : \operatorname{Im}z \neq 0\right\}\). Note that \(\operatorname{Cl}(S) = \mathbb C\)
Consider the set \(\displaystyle{Z_n = \left\{\frac{i}{n} : n \in \mathbb N\right\}}\) illustrated below
Note that 0 is not contained in this set. We can get as close as we like to 0, but we can never quite get there. That means that 0 is a boundary point of \(Z_n\).
Also note that every point is not an interior point, as any neighborhood of any point is not entirely contained in \(Z_n\).
Let us now consider the deleted neighborhood of 0. No matter what \(\varepsilon\) we pick, we can always find an element of \(Z_n\) that is within the deleted neighborhood. This means that every deleted neighborhood of 0 contains at least one point of \(Z_n\), so 0 is an accumulation point of \(Z_n\). We can also see that 0 is the only accumulation point of \(Z_n\), because no matter what point we pick, there will always be some distance between the point we pick and its neighbors that is not in \(Z_n\).
Also note that 0 is \(Z_n\)'s only boundary point, so \(\operatorname{Cl}(Z_n) = \{Z_n, 0\}\)
Now consider the set \(Z_n = \{i^n : n \in \mathbb N\} = \{i, -1, i , 1\}\) illustrated below.
This set has no accumulation points.
Consider the set \( Z_n = \left\{\frac{i^n}{n} : n \in \mathbb N\right\}\)
Note how the sequence spirals closer and closer to 0, but never actually hits it. It's very similar to the first accumulation point example. \(0 \not\in Z_n\), but no matter what \(\varepsilon\) we pick around 0, we can always find a point within that \(\varepsilon\). Therefore 0 is an accumulation point, and is actually the only accumulation point of this set.
Lastly, consider the set
\[ Z_n = \left\{(-1)^n(1 + i)\frac{n - 1}{n} : n \in \mathbb N\right\} = \left\{-0,\, \frac{1}{2}(1 + i),\, \frac{-2}{3}(1 + i),\, \frac{3}{4}(1 + i),\, \frac{-4}{5}(1 + i),\, \dots\right\}\]
\(1 + i\) and \(-(1 + i)\) are the only accumulation points of \(Z_n\), but are not in \(Z_n\).
Also note that for a little bit of intuition, points accumulate at the accumulation points -- though not necessarily from one direction.


|
LibDriver MAX30205
2.0.0
MAX30205 full function driver
|
max30205 interface driver modules More...
Functions | |
| uint8_t | max30205_interface_iic_init (void) |
| interface iic bus init More... | |
| uint8_t | max30205_interface_iic_deinit (void) |
| interface iic bus deinit More... | |
| uint8_t | max30205_interface_iic_read (uint8_t addr, uint8_t reg, uint8_t *buf, uint16_t len) |
| interface iic bus read More... | |
| uint8_t | max30205_interface_iic_write (uint8_t addr, uint8_t reg, uint8_t *buf, uint16_t len) |
| interface iic bus write More... | |
| void | max30205_interface_delay_ms (uint32_t ms) |
| interface delay ms More... | |
| uint16_t | max30205_interface_debug_print (char *fmt,...) |
| interface print format data More... | |
max30205 interface driver modules
| uint16_t max30205_interface_debug_print | ( | char * | fmt, |
| ... | |||
| ) |
interface print format data
| [in] | fmt | is the format data |
Definition at line 112 of file driver_max30205_interface_template.c.
| void max30205_interface_delay_ms | ( | uint32_t | ms | ) |
interface delay ms
| [in] | ms |
Definition at line 101 of file driver_max30205_interface_template.c.
| uint8_t max30205_interface_iic_deinit | ( | void | ) |
interface iic bus deinit
Definition at line 59 of file driver_max30205_interface_template.c.
| uint8_t max30205_interface_iic_init | ( | void | ) |
interface iic bus init
Definition at line 47 of file driver_max30205_interface_template.c.
| uint8_t max30205_interface_iic_read | ( | uint8_t | addr, |
| uint8_t | reg, | ||
| uint8_t * | buf, | ||
| uint16_t | len | ||
| ) |
interface iic bus read
| [in] | addr | is the iic device write address |
| [in] | reg | is the iic register address |
| [out] | *buf | points to a data buffer |
| [in] | len | is the length of the data buffer |
Definition at line 75 of file driver_max30205_interface_template.c.
| uint8_t max30205_interface_iic_write | ( | uint8_t | addr, |
| uint8_t | reg, | ||
| uint8_t * | buf, | ||
| uint16_t | len | ||
| ) |
interface iic bus write
| [in] | addr | is the iic device write address |
| [in] | reg | is the iic register address |
| [in] | *buf | points to a data buffer |
| [in] | len | is the length of the data buffer |
Definition at line 91 of file driver_max30205_interface_template.c.


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Department of Economics and Trade
Sejong University
209 Neungdong-ro, Gwangjin-gu.
Seoul, 05006, Republic of Korea
Contact Information
Email: hoonsik.yang ‘at’ sejong.ac.kr
Research Interests
Macroeconomics, Monetary Economics
Publications
“Optimal inflation in a model of inside money: A further result” (with Wataru Nozawa), Annals of Economics and Finance, May 2018
“A Simulation Analysis of Self-learning Pricing Algorithms and Tacit Collusion” (in Korean) (with Wiroy Shin), The Korean Journal of Industrial Organization, September 2019
“Optimal intervention in a random-matching model of money” (with Wataru Nozawa), Bulletin of Economic Research, Forthcoming
Misc.
"Competition in the Digital Economy: Collusion by AI Pricing Algorithms" (in Korean) (Wiroy Shin, Yeolyong Sung, Yangshin Park, Hoonsik Yang, Minji Kang, and Jin Park), December 2018
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“A beneficial role of government bonds without a cash-in-advance constraint”
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Sejong University (Instructor)
Economic Mathematics, Econometrics, Economic Statistics, Intermediate Microeconomics, Introduction to International Economics
University of Connecticut (Instructor)
Money and Banking, Intermediate Macroeconomic Theory, Principles of Macroeconomics, Macroeconomics(Master)
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Neil Wallace (Supervisor): neilw ‘at’ psu.edu
Shouyong Shi: sus67 ‘at’ psu.edu
Ruilin Zhou: rzhou ‘at’ psu.edu
John Riew: jriew ‘at’ psu.edu


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