大约有 15,000 项符合查询结果(耗时:0.0275秒) [XML]

https://stackoverflow.com/ques... 

How to determine if a point is in a 2D triangle? [closed]

...ou started: float sign (fPoint p1, fPoint p2, fPoint p3) { return (p1.x - p3.x) * (p2.y - p3.y) - (p2.x - p3.x) * (p1.y - p3.y); } bool PointInTriangle (fPoint pt, fPoint v1, fPoint v2, fPoint v3) { float d1, d2, d3; bool has_neg, has_pos; d1 = sign(pt, v1, v2); d2 = sign(pt, ...
https://stackoverflow.com/ques... 

How to count certain elements in array?

... just to compare it to a value is not elegant. – Felix Kling May 25 '11 at 8:33 2 ...
https://stackoverflow.com/ques... 

Combine two columns of text in pandas dataframe

I have a 20 x 4000 dataframe in Python using pandas. Two of these columns are named Year and quarter . I'd like to create a variable called period that makes Year = 2000 and quarter= q2 into 2000q2 . ...
https://stackoverflow.com/ques... 

How can I get the source code of a Python function?

...ting the lines of source code, and tuple[1] is the line number in the context of execution where it was run. In IPython; this is the line number within the cell not the overall notebook – The Red Pea Sep 23 '14 at 5:32 ...
https://stackoverflow.com/ques... 

How to remove outliers from a dataset

...d of data, they are given an age and a beauty rating from 1-5. When I do boxplots of this data (ages across the X-axis, beauty ratings across the Y-axis), there are some outliers plotted outside the whiskers of each box. ...
https://stackoverflow.com/ques... 

How to make rpm auto install dependencies

...cal repository, e.g. /home/user/repo. Move the RPMs into that directory. Fix some ownership and filesystem permissions: # chown -R root.root /home/user/repo Install the createrepo package if not installed yet, and run # createrepo /home/user/repo # chmod -R o-w+r /home/user/repo Create a reposit...
https://stackoverflow.com/ques... 

“Cloning” row or column vectors

Sometimes it is useful to "clone" a row or column vector to a matrix. By cloning I mean converting a row vector such as 9 A...
https://stackoverflow.com/ques... 

T-SQL split string

...s in R2. I have made sure I have select permissions on any split function examples. Any help greatly appreciated. 26 Answer...
https://stackoverflow.com/ques... 

How to check if one of the following items is in a list?

... >>> a = [1,2,3,4] >>> b = [2,7] >>> print(any(x in a for x in b)) True share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

Bash set +x without it being printed

Does anyone know if we can say set +x in bash without it being printed: 5 Answers 5 ...