Why Matlab Function block don't perform operations in matrix of different size? (Matlab2019a)

In Workspace, if a you have a matrix A of size [8 5] and a matrix B of size [1 5], you could perform the following operation:

A-B

the row in B will be used for each line on A. But Matlab Function block doesn't able to perform this operation. You will recieve this error:

Size mismatch (size [8 x 5] ~= size [1 x 5])

What is the problem with handling this in the Matlab function block?

Answer 1

[Walter Roberson]

MATLAB Function Blocks are processed by something similar to MATLAB Coder, and do not support full MATLAB. In particular, implicit expansion is not supported at this time. Try bsxfun(@minus, A, B)

[Rubem Pacelli]

Thanks.