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How do I create a SHA1 hash in ruby?
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require 'digest/sha1'
Digest::SHA1.hexdigest 'foo'
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Specifying and saving a figure with exact size in pixels
Say I have an image of size 3841 x 7195 pixels. I would like to save the contents of the figure to disk, resulting in an image of the exact size I specify in pixels.
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Benchmarking (python vs. c++ using BLAS) and (numpy)
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edited Sep 30 '11 at 18:19
answered Sep 30 '11 at 18:00
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Does Java support default parameter values?
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For constructors, See Effective Java: Programming Language Guide's Item 1 tip (Consider static factory methods instead of constructors) if the overloading is getting complicated. For other methods, renaming some cases or using a parameter object can help. This is when you have enough complexity t...
How to show only next line after the matched one?
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Find the most common element in a list
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Handling optional parameters in javascript
I have a static javascript function that can take 1, 2 or 3 parameters:
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What does enumerate() mean?
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The enumerate() function adds a counter to an iterable.
So for each element in cursor, a tuple...
How to map atan2() to degrees 0-360
atan2(y, x) has that discontinuity at 180° where it switches to -180°..0° going clockwise.
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