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Topic: How can I get better solution for this...?
Replies: 0

 siddys@gmail.com Posts: 15 Registered: 10/12/05
How can I get better solution for this...?
Posted: Jul 6, 2011 4:54 AM

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.