Hi,


> You do know that "cos^2(t)+sin^2(t)" is 1 for all t do you?

Please read the following reply. It's a mistake. You should
replace the formula with "x^2+y^2" like in the final equation.

The bell curve surface y=f(x,z) is described correctly.

Thanks,

-- 

Author of Eureka 2.12 (2D Graph Describer, 3D Modeller)
http://eureka.atari.org/
http://fon.gs/eureka/

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