[GiNaC-list] Symbolic Differentiation

[Javier Ros]

This does not work with all kind of expressions, for example, with the one
I wrote before... if I use this solution with: ex expr = a(t)^2 + sin(b(t))
it throws an error with the operator "^".


I presume should use pow( , 2), I'dont think  ^ is overloaded by default in
GiNaC.



> Any idea how can I do this king of derivations?
>
> Thank you in advance!
> Diego H.
>
>
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