Re: [GiNaC-list] non-commutative symbols (again)

Hi, Alexei, thank you for your detailed help.

See the tutorial (section titled `Non-commutative objects') for more details and examples. I looked at it and set the return_type() of my non-commutative symbol class to noncommutative_composite. If I understand the documentation correctly, this means that the ncsymbol does not commutate with anything. The advantage being that I can substitute it with any non-commutative object, not just with matrices.

Is that correct, or do I need to got the return_type_tinfo() way? I won't ever be substituting the ncsymbol with something commutative in my application so that shouldn't be a problem. Thanks for your help! Jan