MaplePrimes - answers and comments on Question, Differentiate matrix and create a function

Is this close?

Preben Alsholm — Sun, 13 Jan 2013 03:38:32 Z

Is this close to what you want:

F:=Matrix([[x^2,sin(x)],[ln(x),cos(x)]]);
diff~(F,x);
FF:=unapply(%,x);
FF(Pi);

DJJerome1976 — Sun, 13 Jan 2013 05:33:44 Z

Since you mentioned having difficulty using, in particular, the map command, here is one way your problem can be solved:

F:=x->Matrix([[x,x^2],[exp(x),sin(x)]]):

FF:=unapply(map(diff,A(x),x),x):

This allows you to do, for example, F(0) and F'(0), and get the expected matrices.

thibault01 — Sun, 13 Jan 2013 05:45:43 Z

This is exactly what I was looking for.

Thanks guys. I really approciate your help.

Markiyan Hirnyk — Sun, 13 Jan 2013 12:25:12 Z

For example, see http://www.mapleprimes.com/questions/139328-Diff--tilde-Of-A-Matrix . This link can be found by the "matrix" search in MaplePrimes at the top of this page. Also see the results of the "differentiate matrix" search in MaplePrimes.