How can I get better solution for this...?

*To*: mathgroup at smc.vnet.net*Subject*: [mg120023] How can I get better solution for this...?*From*: sid <siddys at gmail.com>*Date*: Wed, 6 Jul 2011 05:39:55 -0400 (EDT)

Hi all, I am trying to solve the following for {sx,sy,gx,gy} sx^2 (1 + gx gy)^2 + sx^2 gy^2 = P00 ........(1) sx sy gx (1 + gx gy) + sx sy gy = P01 .......(2) sy^2 ( 1 + gx^2) = P11 ...............................(3) sx sy = D ................................................(4) in terms of P00,P01,P11, and D. When I use Solve[] , I get a huge output containing the P terms up till the order of 16 (i.e P00^16 etc..), which I know is not correct. I do not think I am specifying the problem correctly, and being a non-expert in Mathematica, would appreciate some help. Specifically 1) should I specify the simultaneous equation using && operator? I have tried it, and I get different (but huge) output 2) can I break the problem into parts? how? Thanks, s.

**Follow-Ups**:**Re: How can I get better solution for this...?***From:*DrMajorBob <btreat1@austin.rr.com>

**Re: How can I get better solution for this...?***From:*Siddharth Srivastava <siddys@gmail.com>

**Re: How can I get better solution for this...?***From:*DrMajorBob <btreat1@austin.rr.com>

**Re: How can I get better solution for this...?***From:*Siddharth Srivastava <siddys@gmail.com>

**Re: How can I get better solution for this...?***From:*DrMajorBob <btreat1@austin.rr.com>

**Re: How can I get better solution for this...?***From:*Siddharth Srivastava <siddys@gmail.com>

**Re: How can I get better solution for this...?***From:*DrMajorBob <btreat1@austin.rr.com>