python Programming Glossary: matrices

http://stackoverflow.com/questions/10508021/matrix-multiplication-in-python

Multiplication in python I'm trying to multiply two matrices together using pure python. Input X1 is a 3x3 and Xt is a 3x2..

Python Numpy Very Large Matrices

http://stackoverflow.com/questions/1053928/python-numpy-very-large-matrices

and from using it I've found that it's capable of handling matrices which are quite large 10000x10000 easily but begins to struggle.. I was wondering if there is a way to create huge matrices natively in numpy say 1 million by 1 million in some way without..

Differential Operator usable in Matrix form, in Python module Sympy

http://stackoverflow.com/questions/15463412/differential-operator-usable-in-matrix-form-in-python-module-sympy

usable in Matrix form in Python module Sympy We need two matrices of differential operators B and C such as B sympy.Matrix D x..

Fast Way to slice image into overlapping patches and merge patches to image

http://stackoverflow.com/questions/16774148/fast-way-to-slice-image-into-overlapping-patches-and-merge-patches-to-image

necessary to add a 0 column to the patch matrix matrices are constructed row by row as normally there are less rows than..

Numpy meshgrid in 3D

http://stackoverflow.com/questions/1827489/numpy-meshgrid-in-3d

code of meshgrid def meshgrid x y Return coordinate matrices from two coordinate vectors. Parameters x y ndarray Two 1 D..

Numpy ?泟mart??symmetric matrix

http://stackoverflow.com/questions/2572916/numpy-smart-symmetric-matrix

3 3 a 0 1 42 print a # a 1 0 42 too or the equivalent with matrices instead of arrays depending on your needs . This approach even..

How to extend pretty print module to tables?

http://stackoverflow.com/questions/3319540/how-to-extend-pretty-print-module-to-tables

this question If you're looking for nice formatting for matrices numpy 's output looks great right out of the box from numpy..

Non biased return a list of n random positive numbers (>=0) so that their sum == total_sum

http://stackoverflow.com/questions/3959021/non-biased-return-a-list-of-n-random-positive-numbers-0-so-that-their-sum

are uniformly distributed within U because orthonormal matrices are coordinate transformations that rotate reflect and do not..

What are the differences between numpy arrays and matrices? Which one should I use?

http://stackoverflow.com/questions/4151128/what-are-the-differences-between-numpy-arrays-and-matrices-which-one-should-i-u

are the differences between numpy arrays and matrices Which one should I use What are the advantages and disadvantages.. machine learning using numpy so there are indeed lots of matrices but also lots of vectors arrays . Thanks. python arrays matrix.. arrays matrix numpy share improve this question Numpy matrices are strictly 2 dimensional while numpy arrays ndarrays are N..

Is it possible to specify your own distance function using Scikits.Learn K-Means Clustering?

http://stackoverflow.com/questions/5529625/is-it-possible-to-specify-your-own-distance-function-using-scikits-learn-k-means

batch k means ... with code that works on scipy.sparse matrices. 3 Always check cluster sizes after k means. If you're expecting..

FSharp runs my algorithm slower than Python!

http://stackoverflow.com/questions/5850243/fsharp-runs-my-algorithm-slower-than-python

code but arrays are a much better way to represent dense matrices particularly when you want a default value of zero. The funny..

Is there a function to make scatterplot matrices in matplotlib?

http://stackoverflow.com/questions/7941207/is-there-a-function-to-make-scatterplot-matrices-in-matplotlib

there a function to make scatterplot matrices in matplotlib Example of scatterplot matrix Is there such a..

Why NumPy instead of Python lists?

http://stackoverflow.com/questions/993984/why-numpy-instead-of-python-lists

array with standard errors. I have heard that for large matrices I should use NumPy as opposed to Python lists for performance..