Re: evaluate assuming odd integers?

*To*: mathgroup at smc.vnet.net*Subject*: [mg58971] Re: evaluate assuming odd integers?*From*: dh <dh at metrohm.ch>*Date*: Tue, 26 Jul 2005 04:01:36 -0400 (EDT)*References*: <dc1t2f$4v8$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Hi, an assumption of e.g. Element[(n+1)/2,Integers] will do the trick, sincerely, Daniel ab at sd.com wrote: > Is there a way in Mathematica to evaluate an expression assuming some > varialbe is Odd integer, for example in below integral how can i tell it > that n is odd integer in the Assumptions section of FullSimplify command or > the integral itself??: > In[35]:= > Integrate[Sin[n*Pi*(z/L)], {z, 0, L}] > FullSimplify[%, n \[Element] Integers && n >= 0 && > L \[Element] Reals && L > 0 && z \[Element] Reals] >