I have a matrix, A, which is of size nx2 and a vector, v, of 1000 coefficients. I would like to create a vector of arrays, A_mult which has 1000 elements, such that every entry in A_mult consists of A with the first column multiplied by a corresponding entry of v. i.e. A_mult[1][:,1]=A[:,1]*v[1] …

Multiply the first column of a matrix by several different scalars

DNF April 2, 2020, 10:59am 4

No, that’s incorrect. Loops are normally the fastest way.

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