Simplifying with positive constants
- To: mathgroup at smc.vnet.net
- Subject: [mg26062] Simplifying with positive constants
- From: djago at my-deja.com
- Date: Wed, 22 Nov 2000 01:55:51 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
I'm trying to calculate some results and when I evaluate them I get: 1/2(r*a-a*d-Sqrt[4*r*a^2*d+(-r*a+a*d)^2] I know that this is a complicated way of saying: r*a but Mathematica (3.0) doesn't seems to get the idea... I've tried with FullSimplify and so on... but Mathematica won't let a go out of the Sqrt function. Maybe If I could tell Mathematica that a, r and d are real and positive values... Can somebody give me a hint of how to do this??? Thx! Sent via Deja.com http://www.deja.com/ Before you buy.