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python numpy machine epsilon
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note that numpy's standard accuracy is 64 (in a 64 bit computer): >>> print(np.finfo(np.float).eps) = 2.22044604925e-16 and >>> print(np.finfo(np.float64).eps) = 2.22044604925e-16
– Charlie Parker
Nov 1...
Is there a JavaScript / jQuery DOM change listener?
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apsillersapsillers
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How to detect Adblock on my website?
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96
No extra requests. No external libraries. Just plain, simple JavaScript:
var adBlockEnable...
Duplicate symbols for architecture x86_64 under Xcode
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75 duplicate symbols for architecture x86_64
Means that you have loaded same functions twice.
As the issue disappear after removing -ObjC from Other Linker Flags,
this means that this option result that functions loads twice:
from Technical Q&A
This fla...
IEnumerable to string [duplicate]
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84
Edited for the release of .Net Core 2.1
Repeating the test for the release of .Net Core 2.1, I ...
Why does this code segfault on 64-bit architecture but work fine on 32-bit?
...out the proper #include the return type of malloc is assumed to be int. IA-64 happens to have sizeof(int) < sizeof(int*) which makes this problem obvious.
(Note also that because of the undefined behaviour it could still fail even on a platform where sizeof(int)==sizeof(int*) holds true, for ex...
Batch script: how to check for admin rights
...independently confirmed that this works on:
Windows XP, x86
Windows XP, x64
Windows Vista, x86
Windows Vista, x64
Windows 7, x86
Windows 7, x64
Windows 8, x86
Windows 8, x64
Windows 10 v1909, x64
(see screenshot #2)
Implementation / Usage
So, to use this solution, simply do something lik...
What's the best way to develop a sideswipe menu like the one in Facebook's new iOS app?
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84
There is a great library for this by Tom Adriaenssen: Inferis/ViewDeck
It's very easy to use a...
Java Name Hiding: The Hard Way
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84
You can cast a null to the type and then invoke the method on that (which will work, since the ...
Can Python test the membership of multiple values in a list?
...000 loops each)
>>> %timeit all(x in bigset for x in bigsubset)
5.96 ms ± 37 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
Using subset testing is still faster, but only by about 5x at this scale. The speed boost is due to Python's fast c-backed implementation of set, but th...