All Questions
5 questions
1
vote
1
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711
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Exponentially-weighted moving mean and standard deviation of an irregularly-spaced weighted time series
The following numpy/python function computes exponentially-weighted moving mean and standard deviation of an irregularly-spaced weighted time series. I want to make it faster by getting rid of the ...
- 123
2
votes
1
answer
190
views
Computing the angle between two vectors (vectorized) for small angles and with few copies
I am implementing a function that computes the angle between two vectors when given two n-dimensional arrays and an axis along which to operate. I want to do this with as few copies as possible, and ...
- 1,061
5
votes
2
answers
219
views
Snake game from the viewpoint of the snake
I wrote a little game of Snake where you can see the field in which the snake moves fixed and you can also see the "viewpoint" of the snake, which is basically calculating the positions of ...
11
votes
1
answer
348
views
Calculate the closest point to many hyperbolic paraboloids
In this question I asked for a way to compute the closest projected point to a hyperbolic paraboloid using python.
Using the iterative approximation answer, I'm able to use the code below to ...
- 383
5
votes
2
answers
113
views
Efficient calculation of bond overlap
For a small library dealing with molecules, I have to calculate a so called connectivity table for the chemical bonds.
I assume that there is a bond between atom i and atom j, if the distance between ...
- 974