$$X = \left[ \begin{array}{ccc} x_{00} & x_{01} & x_{02} \\ x_{10}& x_{11} & x_{12} \\ \end{array} \right] $$
W =
w00 w01
w10 w11
w20 w21
d(XW)/d(W) = ? How to get the gradient of matrix X multiple matrix W respect to W?
$$X = \left[ \begin{array}{ccc} x_{00} & x_{01} & x_{02} \\ x_{10}& x_{11} & x_{12} \\ \end{array} \right] $$
W =
w00 w01
w10 w11
w20 w21
d(XW)/d(W) = ? How to get the gradient of matrix X multiple matrix W respect to W?
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Map $W\mapsto XW$ is linear. What do you know about derivatives of linear maps?