[GiNaC-list] convert from string to ex

[Alexey Sheplyakov]

Hi,

24.03.2019, 12:34, "Pedro Sosa via GiNaC-list" <ginac-list at ginac.de>:
> Hello I have a problem, I would like convert from string to ex to find the symbolic derivative
> is it posible?

Yep. See this example:
https://www.ginac.de/ginac.git/?p=ginac.git;a=blob;f=doc/examples/derivative.cpp;h=c1a09b993daa342e3bc722466a6c4b75beadedb1;hb=3d962a6ef2acd92207cdfc164a33d13c5c827dc9

Best regards,
        Alexey