Hello, what is the origin of this name gruntz ?
2014-02-18 1:57 GMT+01:00 Aaron Meurer <[email protected]>: > Ah, so it seems that these incorrect limit heuristics have still not > been completely abolished from the code base. I would recommend just > using gruntz() for now. limit() is not that much smarter, but it does > have a bad tendency to give wrong answers when gruntz() works just > fine. > > Aaron Meurer > > On Mon, Feb 17, 2014 at 1:29 PM, Christophe Bal <[email protected]> > wrote: > > Thanks for this. > > > > > > 2014-02-17 19:21 GMT+01:00 Avichal Dayal <[email protected]>: > > > >> However gruntz gives the correct result:- > >> gruntz((x*exp(x)) / (exp(x)-1), x, -oo) gives 0 > >> > >> The part of code that is going wrong is already labeled as XXX: todo > >> More specifically the following:- > >> if abs(z0) is S.Infinity: > >> # XXX todo: this should probably be stated in the > >> # negative -- i.e. to exclude expressions that should > >> # not be handled this way but I'm not sure what that > >> # condition is; when ok is True it means that the leading > >> # term approach is going to succeed (hopefully) > >> > >> It should exclude some expressions and I guess this is one of them. > >> I'll try to understand and fix it. > >> > >> > >> -- > >> 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 [email protected]. > >> To post to this group, send email to [email protected]. > >> Visit this group at http://groups.google.com/group/sympy. > >> For more options, visit https://groups.google.com/groups/opt_out. > > > > > > -- > > 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 [email protected]. > > To post to this group, send email to [email protected]. > > Visit this group at http://groups.google.com/group/sympy. > > For more options, visit https://groups.google.com/groups/opt_out. > > -- > 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 [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/sympy. > For more options, visit https://groups.google.com/groups/opt_out. > -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.
