On Sat, Mar 1, 2014 at 6:39 AM, Sergey Kirpichev <skirpic...@gmail.com> wrote: > On Saturday, March 1, 2014 5:35:01 PM UTC+4, Avichal Dayal wrote: >>> >>> Perhaps, something to indicate an error. >> >> But there are instances where series(sin(x), x, oo) is used by other >> methods >> For e.g.:- gruntz((sin(x) + cos(x)/x**2, x, oo) tries to find that series >> If we raise an error, then those limits won't work (which should) > > > Limit may work, if we implement algorithms to solve this kind > of problems. gruntz() wont work, but it's expected.
I think the Gruntz algorithm actually might work for these as well --- at the point after doing the expansion in terms of omega, when you are determining the limit x->0, you just need to be able to handle cases where sin/cos are oscillating, but bounded. Depending on the case, the result can either be finite, e.g. x*sin(1/x) when x->0, or oscillating, then the limit doesn't exist. Etc. Ondrej -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CADDwiVBzGDKOigJc7S3Rc3931zZWHcdJxufZ8bvcc23v%2Bx%3DBfQ%40mail.gmail.com. For more options, visit https://groups.google.com/groups/opt_out.
