Trying to write functions on Matlab

Question

Im just learning matlab. I was wondering how can we make Matlab functions to perform $ABx$ is two ways: $(AB)x $ and $A(Bx)$ where $A,B$ are $n \times n$ matrices. I am stuck on trying to write these codes as I am not familiar with programming. Can someone help me?

Matrix multiplication is associative my friend. What are you trying to do? — Rubi Shnol, Sep 11 '15 at 09:43

score 0 · Answer 1 · answered Sep 09 '15 at 02:31

0

I would just define a new matrix:

A = [];
B = [];
x = [];
C = A*B;
D = B*x;
C*x
A*D

The last two outputs should be identical.

answered Sep 09 '15 at 02:31

Rellek

2,222

Trying to write functions on Matlab

1 Answers1