I think just normal Symbol('A', commutative=False) behaves like you
want. commutative=False symbols do not commute with each other but
they do commute with commutative=True symbols (which is the default).Aaron Meurer On Sun, Oct 4, 2015 at 11:37 AM, Vincent Russo <[email protected]> wrote: > Hello, > > I'd like to see if there is a way to define operators that do not commute > with themselves, but do commute with elements from a different set. > > For instance, > > from sympy import * > from sympy.physics.quantum.operator import HermitianOperator, Operator > > A0 = HermitianOperator('A0') > A1 = HermitianOperator('A1') > > B0 = HermitianOperator('B0') > B1 = HermitianOperator('B1') > > > Here, the variables are noncommutative. However, I do want the "A" variables > to commute with the "B" variables. Specifically, I would like it so that > [Ax,By] = 0 for all "x" and "y". > > Is there a way to do that using the Operator package? Or if not, then just > the symbol one? Thanks! > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/60336e86-7b4f-454d-aaa3-f4c603cc110f%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAKgW%3D6%2B49ea-BUhnVXnxNKFtUuUvnkOGYPU-sczERG7zjFikdg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
