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Using numpy to build an array of all combinations of two arrays
... [3, 5, 6],
[3, 5, 7]])
numpy.meshgrid() use to be 2D only, now it is capable of ND. In this case, 3D:
In [115]:
%timeit np.array(np.meshgrid([1, 2, 3], [4, 5], [6, 7])).T.reshape(-1,3)
10000 loops, best of 3: 74.1 µs per loop
In [116]:
np.array(np.meshgrid([1, 2, 3], [4, 5], [6, ...
Trim spaces from end of a NSString
...WhiteSpace((__bridge CFMutableStringRef) stringToTrim);
//stringToTrim is now "i needz trim"
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Find the most common element in a list
...e highest frequency item (for just 1 item, that's O(N) time). As Counter() now is heavily optimised (counting takes place in a C loop), it can easily beat this solution even for small lists. It blows it out of the water for large lists.
– Martijn Pieters♦
Oct...
Close iOS Keyboard by touching anywhere using Swift
I have been looking all over for this but I can't seem to find it. I know how to dismiss the keyboard using Objective-C but I have no idea how to do that using Swift ? Does anyone know?
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Is Python strongly typed?
...nversion either. If functions don't have declared parameter types, there's nowhere for implicit conversions to happen.
– abarnert
Aug 10 '14 at 18:18
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How can I recall the argument of the previous bash command?
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If you know the number given in the history for a particular command, you can pretty much take any argument in that command using following terms.
Use following to take the second argument from the third command in the history,
!3:...
Python: fastest way to create a list of n lists
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Shouldn't this be updated now that range is different in Python 3?
– beruic
Oct 28 '19 at 10:02
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How to create a density plot in matplotlib?
...ed answer. See below on Seaborn solution, which is more standard in Python now.
– LudvigH
May 24 '19 at 12:21
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int value under 10 convert to string two digit number
...e site (or related site) may have been spreading malicious software. It is now off the list an no longer reported as problematic. Google "SteveX String Formatting" you'll find the search result and you can visit it at your discretion.
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Why does GCC generate such radically different assembly for nearly the same C code?
... only two possible values that sign can take:
sign = 0
sign = 0x80000000
Now recognize that in both cases, sign == -sign. Therefore, when I change the original code to this:
int fast_trunc_one(int i) {
int mantissa, exponent, sign, r;
mantissa = (i & 0x07fffff) | 0x800000;
exponen...