Re: Issue 2026 in sympy: Exact, algebraic, and integer_power substitution

2011-07-08 Thread sympy
Comment #17 on issue 2026 by Vinzent.Steinberg: Exact, algebraic, and integer_power substitution http://code.google.com/p/sympy/issues/detail?id=2026 Some older discussion on this (I think Sebastian even started working on it): http://groups.google.com/group/sympy/browse_thread/thread/888

Re: Issue 2026 in sympy: Exact, algebraic, and integer_power substitution

2011-07-08 Thread sympy
Comment #18 on issue 2026 by smi...@gmail.com: Exact, algebraic, and integer_power substitution http://code.google.com/p/sympy/issues/detail?id=2026 There's really another issue, too: what should `sqrt(n).subs(n, 1)` be if `n = Symbol('n', negative=True)`? 1, I, or should it raise an error?

Issue 2553 in sympy: together could be used more judiciously in simplify

2011-07-08 Thread sympy
Status: Accepted Owner: smi...@gmail.com Labels: Type-Defect Priority-Medium New issue 2553 by smi...@gmail.com: together could be used more judiciously in simplify http://code.google.com/p/sympy/issues/detail?id=2553 The following is more complicated than it could be: >>> simplify(E+exp