Walt Mankowski on Wed, 8 May 2002 02:30:16 +0200


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Re: [PLUG] math help for this graphing program I'm writing to graph the keyring ? 

On Tue, May 07, 2002 at 08:19:25PM -0400, Walt Mankowski wrote:
> r = sqrt( (b^2 * a^2) / ( (b^2 * cos(theta)) + (a^2 * sin(theta)) ) )

Doh!  I missed squaring the sin and cosine.  Let's try that again...

r = sqrt( (b^2 * a^2) / ( (b^2 * (cos(theta)^2) ) + (a^2 * (sin(theta)^2) ) )

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