Consider a 1x2 matrix A and a 1d array of 2x2 matrices B: A = [1 2] B = [rand(2,2) for _ in 1:3] Obviously, B[1] is a 2x2 matrix, B[2] and B[3] as well. Now, I would like to get an array of matrix products [A*B[1], A*B[2], ... A*B[end]]. How can I get it? I am trying the dot in julia> R = A.*B 3…

Broadcasting in matrix multiplication

Oscar_Smith March 25, 2020, 3:01pm 2

You want Ref(A).*B. Ref is a single element container, so broadcast will broadcast over it, not A.

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