Comment #3 on issue 1619 by hazelnusse: examples/advanced/curvilinear_coordinates.py is very slow http://code.google.com/p/sympy/issues/detail?id=1619
Sorry for taking so long to get back on this. If you change the trigsimp call to expand, things improve significantly. The next step would be to identify trig terms and perform the replacement that Chris suggested, i.e., replacing all cos**2 terms with 1-sin**2 terms and re expanding. This has been my approach in PyDy and it works well for many cases I have encountered. I pushed this change to my github, it is in the curvilinear_patch branch. ~Luke -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en -~----------~----~----~----~------~----~------~--~---
