Hi, we just fixed the last bugs in the Mateusz's polys branch and pushed it in our main git repo. All tests pass for all kinds of configurations that I tried, but if possible, please test it (I didn't test on Mac nor Windows).
Just to get some idea, Mateusz did about 150 patches and it implements all kinds of polynomial algorithms, see e.g. this patch for some details: http://git.sympy.org/?p=sympy.git;a=commit;h=31c9aa43ffc7bc031493fc4ea27b74dc50c4d035 It should fix all kinds of bugs and also it's quite fast and robust. E.g. this failed: In [1]: f = expand((x+y+z)**20) In [2]: factor(f) Out[2]: 20 (x + y + z) and now it works. Plus the core polynomials are cythonized in pure Cython mode (so far only about 2x speedup), but I think we'll figure out ways to speed it up more using Cython. Ondrej -- 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.