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Re: Simplification question
On Wed, 27 Jul 2005 06:41:13 +0100, snoofly <snoofly at snoofly.com> wrote: > Can someone explain this to me please. > > Clear[m] > > Simplify[Sin[3 m Pi], Assumptions -> m \[Element] Integers] > 0 > > Simplify[Cos[3 m Pi], Assumptions -> m \[Element] Integers] > > Cos[3 m \[Pi]] > > I'm not sure why Mathematica cannot deduce that the second simplification > should be (1)^m. > That should say (-1)^m of course.