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How can I Multiply a vector by a weight matrix

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Prince Igweze
Prince Igweze on 17 Nov 2019
Edited: Adam Danz on 17 Nov 2019
How can i multiple a 20 by 50 matrix (A) by a 20 by 20 weigting matrix(S)
i.e SA


Fabio Freschi
Fabio Freschi on 17 Nov 2019
If A is 20 by 50 and S is 20 by 20, the product S*A is defined and the result is a 20 by 50 matrix.
Adam Danz
Adam Danz on 17 Nov 2019
Here's a quick refresher on matrix multiplication
The only thing you need to know that is Matlab related is that A*B will execute matrix multiplication. A.*B will execute element-wise multiplication.

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