- #1

daviddoria

- 97

- 0

x= 4 by 1 vector

A = 4 by 4 matrix

diff( Transpose(x) * A * x, x)

should return (1/2)*A*x

Is there software that can do this? I am familiar with maple and matlab, but I don't think either of them can do this.

Any suggestions?

Thanks!

David