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How to draw circle in html page?

...height of the circle you want to make. #circle { width: 50px; height: 50px; -webkit-border-radius: 25px; -moz-border-radius: 25px; border-radius: 25px; background: red; } <div id="circle"></div> ...
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File content into unix variable with newlines

I have a text file test.txt with the following content: 6 Answers 6 ...
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Returning first x items from array

...ray array_splice ( array &$input , int $offset [, int $length = 0 [, mixed $replacement]]) If length is omitted, removes everything from offset to the end of the array. If length is specified and is positive, then that many elements will be removed. If length is specified and is negative then ...
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What is The Rule of Three?

...e semantics. This means that objects are implicitly copied in various contexts, and we should understand what "copying an object" actually means. Let us consider a simple example: class person { std::string name; int age; public: person(const std::string& name, int age) : name(name...
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All combinations of a list of lists

... Could someone explain the meaning of the asterisk in *a? – Serrano Feb 4 '13 at 20:20 55 ...
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What are the main purposes of using std::forward and which problems it solves?

...d the entire problem in detail, but I'll summarize. Basically, given the expression E(a, b, ... , c), we want the expression f(a, b, ... , c) to be equivalent. In C++03, this is impossible. There are many attempts, but they all fail in some regard. The simplest is to use an lvalue-reference: te...
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Pointer to class data member “::*”

...ions can be used in pluggable architectures, but once again producing an example in a small space defeats me. The following is my best (untested) try - an Apply function that would do some pre &post processing before applying a user-selected member function to an object: void Apply( SomeClass ...
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What is the difference between 'log' and 'symlog'?

In matplotlib , I can set the axis scaling using either pyplot.xscale() or Axes.set_xscale() . Both functions accept three different scales: 'linear' | 'log' | 'symlog' . ...
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Converting A String To Hexadecimal In Java

I am trying to convert a string like "testing123" into hexadecimal form in java. I am currently using BlueJ. 21 Answers ...
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Initialising an array of fixed size in python [duplicate]

...ocs indicate "None is typically used to represent absence of a value". My example produced such a list of the defined size, in the shortest amount of code. Its the closest thing in idiomatic Python at the time the question was asked. – samplebias Aug 25 '14 at ...