What's the derivative of $f(w)$ with respect to the vector $w$?
$$f(w)=\mathrm{tr}(ww'A) + x^{\prime}ww'x$$
Note:
$x,w$ are vectors and $A$ is a square matrix.
${}'$ indicates transpose
Thanks.
What's the derivative of $f(w)$ with respect to the vector $w$?
$$f(w)=\mathrm{tr}(ww'A) + x^{\prime}ww'x$$
Note:
$x,w$ are vectors and $A$ is a square matrix.
${}'$ indicates transpose
Thanks.