[sage-devel] Re: sum() with addition or subtraction raises type error

x: (3**(x-1)-1)/6**(x-1), [1,inf]) Out[2]: 0.8 So, another solution might be to add a SymPy algorithm to the sum() function. Of course, this is probably a lot more work than just enabling simpsum to the existing Maxima algorithm. -- Marc Tardif Freenode: cr3, Jabber: c...@jabber.org 1024D

[sage-devel] sum() with addition or subtraction raises type error

r in SymPy either: In [34]: nsum(lambda n: 1/2**n-1/3**n, [1, inf]) Out[34]: mpf('0.5') So, is my expression incorrect or might this be a bug? -- Marc Tardif Freenode: cr3, Jabber: c...@jabber.org 1024D/72679CAD 09A9 D871 F7C4 A18F AC08 674D 2B73 740C 7267 9CAD -- You received