How can I Multiply a vector by a weight matrix

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Prince Igweze 2019-11-17

编辑： Adam Danz 2019-11-17

How can i multiple a 20 by 50 matrix (A) by a 20 by 20 weigting matrix(S)

i.e SA

THANK you

Fabio Freschi 2019-11-17

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 2019-11-17

编辑：Adam Danz 2019-11-17

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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