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What does the constant 0.0039215689 represent?
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0.0039215689 is approximately equal to 1/255.
Seeing that this is OpenGL, performance is probably important. So it's probably safe to guess that this was done for performance reasons.
Multiplying by the reciprocal is faster than r...
Warning: Found conflicts between different versions of the same dependent assembly
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19 Answers
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What is the difference between BIT and TINYINT in MySQL?
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124
A TINYINT is an 8-bit integer value, a BIT field can store between 1 bit, BIT(1), and 64 bits,...
Best way of returning a random boolean value
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edited Aug 23 '15 at 7:45
answered Nov 4 '11 at 16:43
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What are Vertex Array Objects?
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102
"Vertex Array Object" is brought to you by the OpenGL ARB Subcommittee for Silly Names.
Think...
Why use strong named assemblies?
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edited Jun 10 at 14:18
Jan Nils Ferner
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ValueError: math domain error
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134
Your code is doing a log of a number that is less than or equal to zero. That's mathematically...
Does Python support short-circuiting?
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318
Yep, both and and or operators short-circuit -- see the docs.
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C# 5 async CTP: why is internal “state” set to 0 in generated code before EndAwait call?
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Okay, I finally have a real answer. I sort of worked it out on my own, but only after Lucian Wis...
Pandas dataframe get first row of each group
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>>> df.groupby('id').first()
value
id
1 first
2 first
3 first
4 second
5 first
6 first
7 fourth
If you need id as column:
>>> df.groupby('id').first().reset_index()
id value
0 1 first
1 2 first
2 3 first
3 4 seco...