Can I use mldivide “\” on a nD matrix without using for loops in Matlab?

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Could I use mldivide (\) on an n-dimensional matrix without using for loops? For example, if I have X=rand (5,5,2,3,6) and Y=[0;0;0;0;1];, can I slice every 5*5 array along the other dimensions to solve it against Y? But for any N-D matrix.

Answers (1)

Abdel-Rahman Ashraf
Abdel-Rahman Ashraf on 20 May 2020
Edited: Abdel-Rahman Ashraf on 20 May 2020
I solved it with the help of Bruno Luong and his multisolver found here. The code below can solve any number of dimensions, considering the first two dimensions are of the same size.
M=rand(5,5,2,3,6);
RHS=[0;0;0;0;1];
sx = size(M);
sy = size(RHS);
dx = ndims(M);
MSOL=MultiSolver(reshape(M,sx(1),sx(2),[]),RHS);
MSOL = reshape(MSOL, [sx(2) sy(2) sx(3:dx)]);

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