Re: Simplify Binomial
- To: mathgroup at smc.vnet.net
- Subject: [mg127642] Re: Simplify Binomial
- From: Alexei Boulbitch <Alexei.Boulbitch at iee.lu>
- Date: Fri, 10 Aug 2012 02:42:41 -0400 (EDT)
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This works: FullSimplify[Binomial[m + 1, n + 1]/Binomial[m, n]] (1 + m)/(1 + n) but this doesn't: FullSimplify[Binomial[m, n + 1]/Binomial[m, n]] Binomial[m, 1 + n]/Binomial[m, n] How do I get Mathematica to simplify the last result to (m-n)/n? Thanks Hi, Themis, Try FunctionExpand: FunctionExpand[Binomial[m, n + 1]/Binomial[m, n]] (m - n)/(1 + n) Have fun, Alexei Alexei BOULBITCH, Dr., habil. IEE S.A. ZAE Weiergewan, 11, rue Edmond Reuter, L-5326 Contern, LUXEMBOURG Office phone : +352-2454-2566 Office fax: +352-2454-3566 mobile phone: +49 151 52 40 66 44 e-mail: alexei.boulbitch at iee.lu