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Why 0 is true but false is 1 in the shell?
The above will output 1 , which is contradictory with all other programming languages I know.
10 Answers
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How to remove gaps between subplots in matplotlib?
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103
You can use gridspec to control the spacing between axes. There's more information here.
imp...
How to check if hex color is “too black”?
...rceived brightness.
Assuming a six character colour:
var c = c.substring(1); // strip #
var rgb = parseInt(c, 16); // convert rrggbb to decimal
var r = (rgb >> 16) & 0xff; // extract red
var g = (rgb >> 8) & 0xff; // extract green
var b = (rgb >> 0) & 0xff;...
Position of least significant bit that is set
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170
Bit Twiddling Hacks offers an excellent collection of, er, bit twiddling hacks, with performan...
How many double numbers are there between 0.0 and 1.0?
...or example, that's the number of distinct doubles between 0.5 included and 1.0 excluded, and exactly that many also lie between 1.0 included and 2.0 excluded, and so forth.
Counting the doubles between 0.0 and 1.0 is harder than doing so between powers of two, because there are many powers of two i...
How do I get indices of N maximum values in a NumPy array?
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16 Answers
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CSS Background Opacity [duplicate]
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1179
Children inherit opacity. It'd be weird and inconvenient if they didn't.
You can use a trans...
Java - get pixel array from image
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182
I was just playing around with this same subject, which is the fastest way to access the pixel...
Fast way to get image dimensions (not filesize)
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195
The file command prints the dimensions for several image formats (e.g. PNG, GIF, JPEG; recent...