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What's the algorithm to calculate aspect ratio?
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203
I gather you're looking for an usable aspect ratio integer:integer solution like 16:9 rather th...
How do I count the number of occurrences of a char in a String?
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answered Nov 29 '09 at 22:23
CowanCowan
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Does the ternary operator exist in R?
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306
As if is function in R and returns the latest evaluation, if-else is equivalent to ?:.
> a ...
Array include any value from another array?
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answered Oct 15 '10 at 11:55
NakilonNakilon
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
... Functions can be called in either order
**/
return 0;
}
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SSH library for Java [closed]
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answered Jun 15 '09 at 14:27
David RabinowitzDavid Rabinowitz
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Is it worth using Python's re.compile?
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I've had a lot of experience running a compiled regex 1000s of times versus compiling on-the-fly, and have not noticed any perceivable difference. Obviously, this is anecdotal, and certainly not a great argument against compiling, but I've found the difference to be negligible.
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What's the point of malloc(0)?
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According to the specifications, malloc(0) will return either "a null pointer or a unique pointer that can be successfully passed to free()".
This basically lets you allocate nothing, but still pass the "artist" variable to a call to free() without worry. For pra...
Days between two dates? [duplicate]
...er of days:
>>> from datetime import date
>>> a = date(2011,11,24)
>>> b = date(2011,11,17)
>>> a-b
datetime.timedelta(7)
>>> (a-b).days
7
And it works with datetimes too — I think it rounds down to the nearest day:
>>> from datetime import...
Principal component analysis in Python
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edited Sep 3 '10 at 11:40
nikow
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answe...