Re: [GiNaC-list] Weird: symbol * ddq_i, my_ex.subs((*ddq_i)==0) my_ex.subs(*ddq_i==0) my_ex.subs(symbol(*ddq_i)==0) ??

Hi Javier, your information is a bit confusing. First you write: On 27.07.2011 19:23, Javier Ros wrote:

the following trivial simplifications

my_ex.subs((*ddq_i)==0) ... go wrong no correct substitution, in different ways

then you write:

Interestingly until now I was simplifying correctly using

my_ex.subs((*ddq_i)==0)

So, once it goes wrong, then it goes well?!? Did you upgrade GiNaC to a newer version, maybe? Anyway, could you, if possible, send a complete code example to explain your problem? It is hard to guess what the problem might be, otherwise. Regards, Jens