Re: Re: Simplification ?
- To: mathgroup at smc.vnet.net
- Subject: [mg38913] Re: [mg38833] Re: Simplification ?
- From: Tomas Garza <tgarza01 at prodigy.net.mx>
- Date: Sat, 18 Jan 2003 00:39:12 -0500 (EST)
- References: <as5pn8$ngo$1@smc.vnet.net> <200301150720.CAA23423@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
You wouldn't want Mathematica to simplify Sqrt[x^2} to give x. Why not -x? Unless, of course, you are really sure that x is positive. In this case use Simplify[Sqrt[x], x>0]. Tomas Garza Mexico City ----- Original Message ----- From: "James Avery" <avery at diku.dk> To: mathgroup at smc.vnet.net Subject: [mg38913] [mg38833] Re: Simplification ? > On Thu, 28 Nov 2002, Olivier Durussel wrote: > > > Hi, > > > > Is there a way to force Mathematica to simplify the terms like > > > > Sqrt[x^2] > > > > to give x ??? > > Using for example > > sqrt[x_*x_] := x; > sqrt[x_] :=Sqrt[x]; > > instead of Sqrt[] will apply the simplification automatically using > pattern matching. > > -- > Med venlig hilsen, > James Avery <avery at diku.dk> > > >
- References:
- Re: Simplification ?
- From: James Avery <avery@diku.dk>
- Re: Simplification ?