Re: Simplify and Abs
- To: mathgroup at smc.vnet.net
- Subject: [mg54766] Re: Simplify and Abs
- From: Roland Franzius <roland.franzius at uos.de>
- Date: Tue, 1 Mar 2005 01:58:20 -0500 (EST)
- Organization: Universitaet Hannover
- References: <200502250618.BAA02358@smc.vnet.net> <cvrppa$p00$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Murray Eisenberg wrote: > Strangely, though, the docs for version 5.1 say: > > FunctionExpand is automatically called by FullSimplify > Yes, it does but not with an improper weigth function for complexity eg In:= FullSimplify[Abs[p - 1], Assumptions -> 1/2<p<1, ComplexityFunction -> (If[FreeQ[#, Abs], ByteCount[#], 1000] &)] Out:= 1 - p Roland Franzius > Bob Hanlon wrote: > >>FunctionExpand[Abs[p-1],p<1&&p>1/2] >> >>1-p >> >> >>>From: Simon Anders <simon.anders at uibk.ac.at> To: mathgroup at smc.vnet.net >> >>>Date: 2005/02/24 Thu AM 03:21:06 EST >>>To: mathgroup at smc.vnet.net >>>Subject: [mg54766] Simplify and Abs >>> >>>can it really be that this is already beyond Mathematica? >>> >>> In := FullSimplify[Abs[p - 1], p < 1 && p > 1/2] >>> >>> Out := Abs[-1 + p] > > >