Yep. .args is basically the key to doing advanced stuff in SymPy. You can access any part of an expression you want by walking the .args tree, and you can use it to do any kind of manipulation you want. Basically, if you look at the source for many of these functions like collect() or as_independent(), they are doing nothing more than walking .args and moving things around there.
Happy coding! Aaron Meurer On Sep 21, 2010, at 9:59 PM, Nicholas Kinar wrote: >> >> Try using .args, as in >> >> expr.args >> >> Aaron Meurer >> > > Thanks, Aaron; that's the icing on the cake, and it is exactly what I needed. > Isn't it neat how expr.args can be cascaded? > > expr1 = expr0.args[0].args[1].args[1] > > 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.
