Set matrix values to zero with "multiplication"

Question

Is there a standard matrix operation that multiplies the elements of each matrix together based only on their position? For example,

$$\begin{pmatrix}1&2&3\\4&5&6\end{pmatrix}\ast\begin{pmatrix}1&0&1\\0&1&0\end{pmatrix} = \begin{pmatrix}1 & 0 & 3\\0 & 5 & 0\end{pmatrix}.$$

@J.W.Tanner Yes! That's it! Make it an answer, and I will accept it. — Craeft, Jan 14 '20 at 15:18

score 3 · Accepted Answer · answered Jan 14 '20 at 15:18

3

It's the Hadamard product, which is different from the usual matrix product.

answered Jan 14 '20 at 15:18

J. W. Tanner

1 Answers1