大约有 47,000 项符合查询结果（耗时：0.0404秒） [XML]
Alternatives to gprof [closed]
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edited Jan 18 '11 at 16:59
Peter Mortensen
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Determine the path of the executing BASH script [duplicate]
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166
For the relative path (i.e. the direct equivalent of Windows' %~dp0):
MY_PATH="`dirname \"$0\...
Printf width specifier to maintain precision of floating-point value
... in:
#include <float.h>
int Digs = DECIMAL_DIG;
double OneSeventh = 1.0/7.0;
printf("%.*e\n", Digs, OneSeventh);
// 1.428571428571428492127e-01
But let's dig deeper ...
Mathematically, the answer is "0.142857 142857 142857 ...", but we are using finite precision floating point numbers.
L...
Replace all elements of Python NumPy Array that are greater than some value
...eplacing all values >0.5 with 5, and it took an average of 7.59ms.
In [1]: import numpy as np
In [2]: A = np.random.rand(500, 500)
In [3]: timeit A[A > 0.5] = 5
100 loops, best of 3: 7.59 ms per loop
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How to remove last n characters from every element in the R vector
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117
Here is an example of what I would do. I hope it's what you're looking for.
char_array = c("...
What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
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281
+100
I create...
Question mark and colon in JavaScript
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edited May 25 '16 at 22:50
Felix Kling
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Why does multiprocessing use only a single core after I import numpy?
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150
After some more googling I found the answer here.
It turns out that certain Python modules (n...
Why does PHP consider 0 to be equal to a string?
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115
You are doing == which sorts out the types for you.
0 is an int, so in this case it is going ...