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Less aggressive compilation with CSS3 calc
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How can I change the current URL?
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glebmglebm
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Superscript in markdown (Github flavored)?
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Michael WildMichael Wild
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How do I break out of a loop in Perl?
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446
Oh, I found it. You use last instead of break
for my $entry (@array){
if ($string eq "te...
Changes in import statement python3
I don't understand the following from pep-0404
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Rails ActionMailer - format sender and recipient name/email address
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Jonathan Allard
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answered Nov 12 '11 at 17:55
James McKinneyJames McKinney
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How can I extract a good quality JPEG image from a video file with ffmpeg?
... the default is -qmin 2).
To output a series of images:
ffmpeg -i input.mp4 -qscale:v 2 output_%03d.jpg
See the image muxer documentation for more options involving image outputs.
To output a single image at ~60 seconds duration:
ffmpeg -ss 60 -i input.mp4 -qscale:v 4 -frames:v 1 output.jpg
This ...
What is the fastest integer division supporting division by zero no matter what the result is?
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How do I determine the target architecture of static library (.a) on Mac OS X?
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Another option is lipo; its output is brief and more readable than otool's.
An example:
% lip...
Map function in MATLAB?
...for numeric arrays:
>> y = arrayfun(@(x) x^2, 1:10)
y =
1 4 9 16 25 36 49 64 81 100
There are two other built-in functions that behave similarly: cellfun (which operates on elements of cell arrays) and structfun (which operates on each field of a structure)...