SIMPLIFY: Results seem to depend on the form of the expression
- To: mathgroup at smc.vnet.net
- Subject: [mg26236] SIMPLIFY: Results seem to depend on the form of the expression
- From: Blimbaum Jerry DLPC <BlimbaumJE at ncsc.navy.mil>
- Date: Wed, 6 Dec 2000 02:16:21 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
To try to understand Mathematica better, sometimes I try some simple things to see what happens etc...Here are some things I tried with Simplify with the results depending on the form of the original expression even though they are just simple polynomial expressions... (1) a x + b x == c y+d y+g x+f x//Simplify returns (a+b) x == f x +g x +(c+d) y (* incomplete *) (2) a x + b x - c y - d y == g x + f x//Simplify returns (a+b) x == (f+g) x + (c+d) y (* seems to work *) (3) a x + b x - g x -f x == c y + d y//Simplify returns (a+b-f-g) x == (c+d) y (* seems to work *) (4) a x + b x - c y - d y - g x - f x == 0//Simplify returns (a+b) x == f x + g x +(c+d) y (* incomplete *) (5) a x + b x -c y - d y - g x - f x//Simplify doesnt do anything to the expression.. Should Simplify be this temperamental? (FullSimplify handles all these cases which is what I would have expected even from Simplify since these are just simple polynomial expressions). thanks...Jerry Blimbaum NSWC Panama City, Fl