Hey! I have pushed a branch which contains code to handle some forms of separable partial equations.
I have currently only implemented basic support for multiplicative separate case, where u(x, t) = X(x)*T(t) You can view/pull and comment the code on: http://github.com/plaes/sympy/tree/pde-separate A small example (or you can find some of them in the tests): from sympy import * from sympy import Derivative as D u, X, T = map(Function, 'uXT') x, t = symbols('xt') c = symbols('c', Real=True) # Define our function (one-dimensional wave equation) eq = Eq(D(u(x, t), t, 2), D(u(x, t), x, 2)*c**2) print pde_separate_mul(eq, u(x, t), [X(x), T(t)]) out >> D(T(t), t, t)/T(t) == c**2*D(X(x), x, x)/X(x) PS. Has anyone examples of equations that can be separated using additive separation: u(x, t) = X(x) + T(t) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sympy@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 -~----------~----~----~----~------~----~------~--~---
