On Sun, 24 Aug 2008 15:55:25 -0700 (PDT) Jason Merrill <[EMAIL PROTECTED]> wrote:
> > In hopes that it may be a useful reference during the current work on > symbolics, I wrote a toy Mathematica program for transforming a single > higher order ODE into a system of first order ODEs. Most of the free > numerical differential equation solvers I've seen want input in the > form y'[x] == f(y,x), so the purpose of a program like this is to take > more general input and turn it into something suitable for those > routines. <snip> Thank you for taking the time to write this. It is very useful indeed. The interface to pynac (William's modified version of GiNaC) doesn't support pattern matching yet, though it is not hard to add this. I'll add this functionality and try to reproduce your example in Sage once I finish reviewing the initial pynac interface patches (#3872). Cheers, Burcin --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
