> expr3 = collect( expr2, M**(n+1), exact=True ) This doesn't work because it is M(2, 1)**(n+1) that is present in expr2, and not M**(n+1). So you must use:
expr3 = collect( expr2, M(2, 1)**(n+1), exact=True) Øyvind > # end code > > Here is the output of the print statement: > > A*M(1, 1)**n - C*M(1, 2)**n + B*M(2, 1)**(1 + n) - D*M(1, 1)**(1 + n) - > E*M(2, 1)**(1 + n) > > In the above code, collect() does not seem to group the B*M(2, 1)**(1 + > n) and E*M(2, 1)**(1 + n) terms. > > Once again, thank you very much for continuing to point me in the right > direction. > > Nicholas > > > > -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sy...@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.