Hello, A question regarding simplify()
For example, simplify() followed by factor() successfully reduces the rather long expression in (x, px, y, py) (24*px**3*x**4*sqrt(x**2 + y**2) - 72*px**3*x**2*y**2*sqrt(x**2 + y**2) + 9*px**3*y**4*sqrt(x**2 + y**2) + 180*px**2*py*x**3*y*sqrt(x**2 + y**2) - 135*px**2*py*x*y**3*sqrt(x**2 + y**2) - 36*px*py**2*x**4*sqrt(x**2 + y**2) + 243*px*py**2*x**2*y**2*sqrt(x**2 + y**2) - 36*px*py**2*y**4*sqrt(x**2 + y**2) + 22*px*x**4 + 14*px*x**2*y**2 - 8*px*y**4 - 45*py**3*x**3*y*sqrt(x**2 + y**2) + 60*py**3*x*y**3*sqrt(x**2 + y**2) + 30*py*x**3*y + 30*py*x*y**3)/(x**2 + y**2)**5 to the desired simpler form (24*px**3*x**4 - 72*px**3*x**2*y**2 + 9*px**3*y**4 + 180*px**2*py*x**3*y - 135*px**2*py*x*y**3 - 36*px*py**2*x**4 + 243*px*py**2*x**2*y**2 - 36*px*py**2*y**4 + 22*px*x**2*sqrt(x**2 + y**2) - 8*px*y**2*sqrt(x**2 + y**2) - 45*py**3*x**3*y + 60*py**3*x*y**3 + 30*py*x*y*sqrt(x**2 + y**2))/(x**2 + y**2)**(9/2) However, simplify() is, understandably, time consuming. Also, I would like to follow the the advice in introductory blurb in the simplify() documentation regarding "robustness". My questions: 1. Is it possible to determine which algorithms simplify() chooses to use? 2. I've reviewed the sympy documentation, but have not been able to identify other simplification algorithms that would apply. This is probably due to my lack of familiarity with this aspect of sympy. Any suggestions would be appreciated. -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sympy/f8376c85-8e49-4570-9bd0-e1363bc87cc5o%40googlegroups.com.
