Re: Issue 2405 in sympy: solve and solve_poly_system can give ambiguous results

2011-06-24 Thread sympy
Comment #5 on issue 2405 by smi...@gmail.com: solve and solve_poly_system can give ambiguous results http://code.google.com/p/sympy/issues/detail?id=2405 Would it be better if polys followed a less complicated logic to pick the unified generators, e.g. the unique, sorted list of generators

Re: Issue 2405 in sympy: solve and solve_poly_system can give ambiguous results

2011-06-24 Thread sympy
Comment #6 on issue 2405 by smi...@gmail.com: solve and solve_poly_system can give ambiguous results http://code.google.com/p/sympy/issues/detail?id=2405 A warning is issued when the results, though determinate, might appear ambiguous when sets of symbols (or no symbols) are given. --

Re: Issue 2405 in sympy: solve and solve_poly_system can give ambiguous results

2011-05-23 Thread sympy
Updates: Summary: solve and solve_poly_system can give ambiguous results Comment #2 on issue 2405 by smi...@gmail.com: solve and solve_poly_system can give ambiguous results http://code.google.com/p/sympy/issues/detail?id=2405 There is a reason that the solver's current

Re: Issue 2405 in sympy: solve and solve_poly_system can give ambiguous results

2011-05-23 Thread sympy
Comment #3 on issue 2405 by smi...@gmail.com: solve and solve_poly_system can give ambiguous results http://code.google.com/p/sympy/issues/detail?id=2405 OK, here is where solve_poly_system is ambiguous (like solve): h[1] from sympy.solvers.polysys import solve_poly_system as so

Re: Issue 2405 in sympy: solve and solve_poly_system can give ambiguous results

2011-05-23 Thread sympy
Comment #4 on issue 2405 by matt...@gmail.com: solve and solve_poly_system can give ambiguous results http://code.google.com/p/sympy/issues/detail?id=2405 There will be always some ambiguity as long as solvers aren't returning mappings. However, it's not solve_poly_system() where the