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I have
J - matrix
x and y - vector
d [ J(x) y(x)] / dx
I can multiply the matrix and vector together and then differentiate but I think for my application it would be better to find an identity like
{d [ J(x) y(x)] / dx } = J(x) d y(x) / dx + d J (x) / dx y(x)
I am not sure if this identity is right though?
Any help appreciated
J - matrix
x and y - vector
d [ J(x) y(x)] / dx
I can multiply the matrix and vector together and then differentiate but I think for my application it would be better to find an identity like
{d [ J(x) y(x)] / dx } = J(x) d y(x) / dx + d J (x) / dx y(x)
I am not sure if this identity is right though?
Any help appreciated