Re: Simplify and Abs
- To: mathgroup at smc.vnet.net
- Subject: [mg54680] Re: Simplify and Abs
- From: Bill Rowe <readnewsciv at earthlink.net>
- Date: Fri, 25 Feb 2005 01:20:29 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
On 2/24/05 at 3:21 AM, simon.anders at uibk.ac.at (Simon Anders) wrote: >can it really be that this is already beyond Mathematica? >In := FullSimplify[Abs[p - 1], p < 1 && p > 1/2] >Out := Abs[-1 + p] >How do I make Matheamtica notice, that the assumptions constrain >the argument of Abs[] to positive values? By specifying the value of p is greater than 1 not less than 1, i.e., In[3]:= FullSimplify[Abs[p - 1], p > 1] Out[3]= p - 1 Your code specifies 1/2 < p < 1 which ensures Sign[p-1]= -1. -- To reply via email subtract one hundred and four