On Mar 7, 1:27 pm, Robert Dodier <robert.dod...@gmail.com> wrote: > clinton bowen wrote: > > I tried some Cosine Transforms found in the book > > 'Handbook of Integral Equations' by Andrei D. > > Polyanin and Alexander V. Manzhirov into sage and > > I found that sage was not able to perform these > > integrals. > > For the record, what are some of integrals you tried? > ... > At present Sage punts to Maxima to compute integrals.
Here's one of my least favorite examples: ------- Maxima 5.17.1 session ----------- mark-mcclures-computer-2:~ markmcclure$ rmaxima Maxima 5.17.1 http://maxima.sourceforge.net Using Lisp CMU Common Lisp Snapshot 2007-08 (19D) (%i1) integrate(1/x^3, x, 1, inf); Integral is divergent -- an error. To debug this try debugmode(true); ------ End Maxima session -------------- Hardly exotic. I did this using the most recent version of Maxima but Sage, of course, displays the same problem. Strangely, though: --------------------------------------------- (%i2) assume(p>1); (%o2) [p > 1] (%i3) integrate(1/x^p, x, 1, inf); (%o3) 1/(p-1) Mark McClure --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
