[GiNaC-list] Declare a noncommutative symbol

[Marco André Ferreira Dias]

Hi guys,

is there any way to declare a symbol as a noncommutative object, like
========
symbol theta("theta",return_types::noncommutative)
========
? It is a stupid question, but a really didn't found it in the tutorial .
If not, somebody knows a simple way to do it?
Regards,

Marco