Re: Issue 3512 in sympy: solve is slow for a simple set of equations.

2013-12-12 Thread sympy
Comment #11 on issue 3512 by smi...@gmail.com: solve is slow for a simple set of equations. http://code.google.com/p/sympy/issues/detail?id=3512 In the smichr/mat branch Matrix.inv_quick can be used to solve this system in a few seconds (see commit message for demonstration). Eventually I w

Re: Issue 4122 in sympy: Egyptian fractions

2013-12-12 Thread sympy
Comment #17 on issue 4122 by faisal.i...@gmail.com: Egyptian fractions http://code.google.com/p/sympy/issues/detail?id=4122 Thanks !! -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences

Re: Issue 4122 in sympy: Egyptian fractions

2013-12-12 Thread sympy
Comment #16 on issue 4122 by lucasbro...@gmail.com: Egyptian fractions http://code.google.com/p/sympy/issues/detail?id=4122 I've finished coding up the other algorithms I mentioned. Turns out the method using Farey sequences produces results identical to the Golomb algorithm---the Golomb al

Issue 4131 in sympy: precision of mpmath in Sympy

2013-12-12 Thread sympy
Status: New Owner: Labels: Type-Defect Priority-Medium New issue 4131 by jblep...@gmail.com: precision of mpmath in Sympy http://code.google.com/p/sympy/issues/detail?id=4131 Computing pi in sympy using mpmath is not performed with the correct precision. For instance if mp.dps=10 only