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In scipy, when I multiply a slice of a sparse matrix with an array containing only zeros, the resul… Read more Multiply Slice Of Scipy Sparse Matrix Without Changing Sparsity

I need to permute elements of columns in the matrix A (3D matrix by axis 0) by 2D permutation matri… Read more Numpy Array Permute Columns 3d Matrix With Argsort

I have a question about the result of an operation I accidentally performed with two numpy matrices… Read more Numpy Matrix Subtraction Confusion

I am profiling a numpy dot product call. numpy.dot(pseudo,pseudo) pseudo is a numpy array of cust… Read more Reasons Of Slowness In Numpy.dot() Function And How To Mitigate Them If Custom Classes Are Used?

MY input(just for example): from numpy import * x=[['1' '7'] ['1.5' '… Read more Python Matrix, Any Solution?

I am looking for a way to convert a nXaXb numpy array into a block diagonal matrix. I have already … Read more 3d Numpy Array Into Block Diagonal Matrix