Error with matrix dimensions arithmetic

I'm doing tutorials in Matlab for school, testing what should and shouldn't work. So when I tried subtrating a 1xn matrix from an mx1 matrix and vice versa, it resulted in an nxn matrix in both cases when it should have resulted in:

"??? Error using ==> -

Matrix dimensions must agree."

according to the tutorial.

Answer 1

[Voss]

Sounds like the tutorial is for an older version of MATLAB, and the behavior changed since then. Here is an article related to that change.

https://blogs.mathworks.com/loren/2016/10/24/matlab-arithmetic-expands-in-r2016b/