Bug in Simplify?
- To: mathgroup at smc.vnet.net
- Subject: [mg33142] Bug in Simplify?
- From: adam.smith at hillsdale.edu (Adam Smith)
- Date: Tue, 5 Mar 2002 03:08:48 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
I was recently working with some trig functions. More specifically for quantum mechanics where one often has terms like Sin[n Pi]. I noticed what seemed a bug in Mathematica's Simplify[,Assumptions]. In:= Simplify[Sin[n*Pi]/n, Element[n,Integers]] Out= 0 Which is fine as long as n is not zero. In:= Limit[Sin[n*Pi]/n, n -> 0] Out= Pi It appears to me that Simplify is correctly determining that Sin[n Pi]=0 for n an integer, but it ignores the fact that there is an indeterminate 0/0. I realize that this is a special case, but it seems to occur often enough that it should be handled properly or at least provide a warning message that one should double check the results. Am I being picky or do others feel the same? Adam Smith