Re: Reduce[] in version 5.1
- To: mathgroup at smc.vnet.net
- Subject: [mg52755] Re: Reduce[] in version 5.1
- From: "Frank Kampas" <fkampas at verizon.net>
- Date: Sat, 11 Dec 2004 05:23:10 -0500 (EST)
- References: <cpau38$iki$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Use the Reduce option Backsubstitution -> True "Gianluca Gorni" <gorni at dimi.uniud.it> wrote in message news:cpau38$iki$1 at smc.vnet.net... > > Hello! > > In Mathematica 5.1 I get the following result from Reduce: > > Reduce[{x^2 - y == 2, x + y == 0}, {x, y}] > > (x == -2 || x == 1) && y == -x > > Sincerely, I preferred the output of version 4.2: > > x==-2 && y==2 || x==1 && y==-1 > > To recover this good old form in 5.1 I have to Reduce[] twice: > > Reduce[Reduce[{x^2 - y == 2, x + y == 0}, {x, y}]] > > I think wri should work on this for the next version. > > Best regards, > > Gianluca Gorni >