Pattern matching in GiNaC CVS

[Do Hoang Son]

Hi Christian,

Look at this from ginsh
> b=log(x*y)*z;
> c=subs(b,log($1)==Log($1));
unknown function 'Log'
parse error at )

Of course, Log() is undefined one.
It would be nice if such a substitution is accepted in ginsh.

Cheers,
Son