From help-request at octave dot org Sun Feb  6 19:39:57 2005
Subject: Re: two quadratic eq, please help
From: Paul Kienzle <pkienzle at users dot sourceforge dot net>
To: "shih lin" <shlinlin at 37 dot com>
Cc: help at octave dot org
Date: Sun, 6 Feb 2005 20:44:48 -0500

These are circles which admit an infinity of solutions.

For a circle of radius r located at (a,b) use the following equation:

	(x-a)^2 + (y-b)^2 = r^2

You can generate solution pairs by x=r cos(theta), y=r sin(theta)

- Paul

On Feb 6, 2005, at 3:25 AM, shih lin wrote:

> dear octave and math programmers:
>
>   highly appreciate anyone can tell me how (or hint) to use octave to
> solve:(12-x)^2 + y^2 =15^2, (16+y)^2+x^2=25^2 (by programming or using 
> its built
> in function)?
> that ^2 mean square.
> looking to any math&programer's help,
>  eric, fsshl at yahoo dot com
>
>
>
>
> ------------------------------------------------------------
> http://Game.37.com/  <--- Free Games
> http://newJoke.com/   <---  J O K E S  ! ! !



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