[GiNaC-devel] Non-commutative symbols

[Vladimir V. Kisil]

>>>>> On Mon, 23 Nov 2015 18:35:12 +0100, Jan Rheinländer <jrheinlaender at gmx.de> said:

    JR> Hi, in chapter 4.15 "Non-commutative objects" the GiNaC
    JR> documentation says:

    JR> "Both symbols and user-defined functions can be specified as
    JR> being non-commutative"

    This seems to be a bug of the documentation, functions are the only
  objects which admit such user-defined specification.
  Quoting the previous discussion on this:

  "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()"

http://www.ginac.de/pipermail/ginac-list/2011-February/001802.html

  Best wishes,
  Vladimir
-- 
Vladimir V. Kisil                 http://www.maths.leeds.ac.uk/~kisilv/
  Book:     Geometry of Mobius Transformations     http://goo.gl/EaG2Vu
  Software: Geometry of cycles          http://moebinv.sourceforge.net/