On Friday, July 27, 2012 12:25:01 PM UTC-7, MartinX wrote: > > I have had a go at implementing trac #3401, symbolic Li, and would like to > override the behaviour of integrate(), but I can't see how to do it. We > have the _derivative_ method in BuiltinFunction to define the derivative > of a function but no equivalent _integrate_ method. Is there reason why > this is so?
It may be related to the fact that derivatives for nearly all special functions of physics (Like Li) can be listed, one per function, on a few pages of a reference book. Yet integral tables are hundreds of pages long, and even then, they are incomplete. RJF -- -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
