大约有 30,000 项符合查询结果（耗时：0.0283秒） [XML]
How to calculate moving average using NumPy?
...ou can easily implement it with np.cumsum, which may be is faster than FFT based methods:
EDIT Corrected an off-by-one wrong indexing spotted by Bean in the code. EDIT
def moving_average(a, n=3) :
ret = np.cumsum(a, dtype=float)
ret[n:] = ret[n:] - ret[:-n]
return ret[n - 1:] / n
>...
Why is division in Ruby returning an integer instead of decimal value?
...it to learn what works best. Here's the benchmark I put together: require 'base64';require 'zlib';puts Zlib.inflate(Base64.decode64("eJxlkMEOwiAQRO98hekFuGzxQEwPXvwR01ZqiYHqBk2Tln8XDlWgnDbM25nJonq9NaoD7ZTtR9PigxK09zM7AkgRHieXTYHOsBNf1nklM6B6TuhYpdp+rPgSdiCOi/d/kQ71QBOtAVFLEDly05+UYQ2H+MckL6z0zioDdJG...
How do I upload a file with metadata using a REST web service?
...D": "7a788f56fa49ae0ba5ebde780efe4d6a89b5db47"
}
Including the file data base64 encoded into the JSON request itself will increase the size of the data transferred by 33%. This may or may not be important depending on the overall size of the file.
Another approach might be to use a POST of the ra...
How do I specify multiple targets in my podfile for my Xcode project?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Centering a view in its superview using Visual Format Language
...with Visual Format Language. Both vertically and horizontally. Here is the demo:
https://github.com/evgenyneu/center-vfl
share
|
improve this answer
|
follow
...
How to compile a 64-bit application using Visual C++ 2010 Express?
Is there a simple way to compile a 64 bit app with the 32-bit edition of Visual C++ 2010 Express? What configurations, if any, are necessary?
...
0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
...= %.0001100110011001100110011001100110011001100110011010
Convert that to base 10:
float(.1) = .10000002384185791015625
double(.1) = .100000000000000088817841970012523233890533447265625
This was taken from an article written by Bruce Dawson. it can be found here:
Doubles are not floats, so don...
How to get the last char of a string in PHP?
...es, you can access the last character in the string like this:
$str[-1]
DEMO
At the request of a @mickmackusa, I supplement my answer with possible ways of application:
<?php
$str='abcdef';
var_dump($str[-2]); // => string(1) "e"
$str[-3]='.';
var_dump($str); // => string(6) "abc...
What's the difference between :: (double colon) and -> (arrow) in PHP?
...methods can be especially useful in object models that are linked to a database for create and delete methods, since you can set the return value to the inserted table id and then use the constructor to instantiate the object by the row id.
...
What is the difference between C# and .NET?
...
.module Example.dll
// MVID: {80A91E4C-0994-4773-9B73-2C4977BB1F17}
.imagebase 0x10000000
.file alignment 0x00000200
.stackreserve 0x00100000
.subsystem 0x0003 // WINDOWS_CUI
.corflags 0x00000001 // ILONLY
// Image base: 0x05DB0000
// =============== CLASS MEMBERS DECLARATION ===========...