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So my objective is the following, given the size of the matrix s, I am attempting to create a matri… Read more Constructing A Special Matrix In Numpy Dynamically

I am trying to create a 2d matrix so that each cell contains a list of strings. Matrix dimensions a… Read more 2d Array Of Lists In Python

I can sum the items in column zero fine. But where do I change the code to sum column 2, or 3, or … Read more Sum Matrix Columns In Python

I understand that eigenvectors are only defined up to a multiplicative constant. As far as I see al… Read more Eigenanalysis Of Complex Hermitian Matrix: Different Phase Angles For Eig And Eigh

I have used Python to perform optimization in the past; however, I am now trying to use a matrix as… Read more Problems With Scipy.optimize Using Matrix As Input, Bounds, Constraints

Say I have two arrays: import numpy as np arr1 = np.array(['faucet', 'faucets', … Read more Return Similarity Matrix From Two Variable-length Arrays Of Strings (scipy Option?)

I'm trying to fit a Theano model that is parametrized in part by a symmetric matrix A. In order… Read more Initializing A Symmetric Theano Dmatrix From Its Upper Triangle

Im looking for an efficient 'for loop' avoiding solution that solves an array related probl… Read more How Do You Efficiently Sum The Occurences Of A Value In One Array At Positions In Another Array