In Response To 'Re: Derivative and valutation of a function'
Thanks, but actually i need it for an operator:
I have an operator and a function and i want to compute the operator applicated to the function and then evaluate the result in a point; for example
L(u):= 3 u + D_x u
I want to compute L(f) (x0), that is
3 (x0^2+3)+2 x0