Mani chandra wrote: > I've attached the value of a particular func where it fails. But > this varies though. Also I restarted the code, making sure I evaluate > only the problematic part and it works. So, it must be an internal > memory limit for Maxima. Is there any way of increasing this?
Memory limits are set by the underlying Lisp implementation. I assume you have Maxima + ECL >= 9.2.1. If so you can adjust the heap size (in bytes) by executing in Maxima: :lisp (ext:set-limit 'ext:heap-size nnnnnnnnn) You can get the default limit by :lisp (ext:get-limit 'ext:heap-size) It's probably something relatively small like 256 M. > sin(2*x)*cos(2*y)*cos(2*z) - (-I*u_x0*e^(-I*x - I*y - I*z) - I*u_x1*e^(-I*x - > I*y) + I guess I is the imaginary unit, right? Are u_x0, u_x1, and other u_x terms constants, or expressions containing x? There are a couple of things you can try to make this more digestible. (1) expand(foo) (where foo = expression you gave) to get a sum of simpler terms (2) map(integrate, bar) (where bar = expand(foo)) to integrate term by term. Not sure if that's really necessary. My advice is to try these heuristics in addition to increasing the heap size. Can I ask what is the purpose of solving this problem? I am always interested to hear what people are working on. HTH Robert Dodier --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
