[GiNaC-list] Non-commutative symbols

[Jan]

Hi,

the GiNaC info documentation claims:

Both symbols and user-defined functions can be specified as being
non-commutative.

I couldn't figure out how to create a non-commutative symbol, though,
except by defining a new subclass of symbol and overloading
return_type()

Any hints?

Thanks,
	Jan