The easiest way to use Zeilberger and related functions is via the simplify_sum package:...
This appears to be a very old bug, it appears in version 5.9.3 if I am not mistaken....
Daniel, if you try the same operation in command line Maxima (maxima.bat), is it...
Another interesting reference is Kahan's paper "What every scientist should know...
sign can't figure out sign of simple expression
Here is a simpler version. (%i1) c : 'a $ (%i2) ordergreat (a, b) $ (%i3) c - a;...
Assigning variable twice yields different results
Fixed by commit [dd297bb8]. Closing this report accordingly. For the record, here...