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HTML span align center not working?
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A div is a block element, and will span the width of the container unless a width is set. A spa...
How to write a switch statement in Ruby
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edited Apr 4 '18 at 9:03
DTavaszi
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answered Jun 4 '09 at 1:22
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How do I download a tarball from GitHub using cURL?
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tom
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answered Apr 21 '11 at 15:35
saltycranesaltycrane
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If using maven, usually you put log4j.properties under java or resources?
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lambda
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answered Feb 27 '11 at 9:27
Jan GalinskiJan Gali...
Set scroll position
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answered Nov 16 '10 at 9:52
Nick Craver♦Nick Craver
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Using column alias in WHERE clause of MySQL query produces an error
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answered Jun 3 '09 at 0:38
victor hugovictor hugo
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WPF: ItemsControl with scrollbar (ScrollViewer)
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edited Oct 29 '12 at 22:01
Drew Noakes
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Group by multiple columns in dplyr, using string vector input
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9 Answers
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Active
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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...
Curly braces in string in PHP
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Mark Amery
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answered Apr 8 '10 at 0:36
cletuscletus...