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How to compare two colors for similarity/difference
...] & 0xFF);
}
public static int[] rgb2lab(int R, int G, int B) {
//http://www.brucelindbloom.com
float r, g, b, X, Y, Z, fx, fy, fz, xr, yr, zr;
float Ls, as, bs;
float eps = 216.f / 24389.f;
float k = 24389.f / 27.f;
float Xr = 0.964221f; // reference white D50
fl...
Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
... like = and =~.
In Bashese: [ is a built-in command, and [[ is a keyword: https://askubuntu.com/questions/445749/whats-the-difference-between-shell-builtin-and-shell-keyword
<
[[ a < b ]]: lexicographical comparison
[ a \< b ]: Same as above. \ required or else does redirection like for...
Difference between UTF-8 and UTF-16?
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Why is '+' not understood by Python sets?
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How to move screen without moving cursor in Vim?
...y change the cursor position if it would be moved off screen.
Courtesy of http://www.lagmonster.org/docs/vi2.html
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How to make CSS width to fill parent?
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Why are C# 4 optional parameters defined on interface not enforced on implementing class?
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JavaScript equivalent of PHP’s die
...st3();
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
&...
Convert char to int in C#
...ar
object. Use ToString to convert a Char
object to a String object.
http://msdn.microsoft.com/en-us/library/system.char.aspx
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How to use Morgan logger?
...ld log statements to stdout showing details of: remote ip, request method, http version, response status, user agent etc. It allows you to modify the log using tokens or add color to them by defining 'dev' or even logging out to an output stream, like a file.
For the purpose we thought we can use i...