I just found that the key to getting the failing recurence test to work is to educate Add's flatten about the unexpected undistributed Number. See add.py in my branch if you you are interested. All tests in that branch now pass. If that's working, then perhaps all that would remain is adjusting the tests so they look right.
Also, I wonder if expand(basic=True) might be the place to put the distribution of the Number into a single Mul. /c -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
