大约有 16,315 项符合查询结果(耗时:0.0292秒) [XML]
Difference between numpy.array shape (R, 1) and (R,)
In numpy , some of the operations return in shape (R, 1) but some return (R,) . This will make matrix multiplication more tedious since explicit reshape is required. For example, given a matrix M , if we want to do numpy.dot(M[:,0], numpy.ones((1, R))) where R is the number of rows (of co...
Get a random boolean in python?
I am looking for the best way (fast and elegant) to get a random boolean in python (flip a coin).
8 Answers
...
Convert from MySQL datetime to another format with PHP
I have a datetime column in MySQL.
18 Answers
18
...
Python ValueError: too many values to unpack [duplicate]
I am getting that exception from this code:
3 Answers
3
...
Is it possible to define more than one function per file in MATLAB, and access them from outside tha
When I was studying for my undergraduate degree in EE, MATLAB required each function to be defined in its own file, even if it was a one-liner.
...
Parse rfc3339 date strings in Python? [duplicate]
I have a datasets where all the dates have the following format:
3 Answers
3
...
Constants in Objective-C
I'm developing a Cocoa application, and I'm using constant NSString s as ways to store key names for my preferences.
14 ...
Mod in Java produces negative numbers [duplicate]
...n, I get 1 as the result of -1 % 2 .
What do I have to do to get the same behavior in Java with the modulo function?
5 ...
Colorized Ruby output to the terminal [closed]
Using Ruby, how can I perform background and foreground text colorization for output in the terminal?
11 Answers
...
Converting milliseconds to a date (jQuery/JavaScript)
I'm a bit of a rambler, but I'll try to keep this clear -
11 Answers
11
...