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# Bell Curve Formula

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Hi all, I am trying to calculate an acceleration value over time that resembles a bell curve. Does anyone have a (easy to understand without "Crazy" math symbols that only a math major would understand) formula they could post, with explanation? Or a link to a tutorial site? Many thanks for all replies!

ex2

or in C

exp(x*x)

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Ok, that is giving me an exponential slope.

But I need the acceleration to level off again at the top of the slope. Sort of like a bell curve.

it exponentialy accelerates, then exponentially deacelerates.

[edited by - Green on January 22, 2003 6:45:40 PM]

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You''ll be wanting e-x2, which will be symetric about x=0, has a maximum at x=0 and goes to zero as x goes to positive or negative infinity. If you want to offset this curve, so that the maximum is at some value ''a'', then you desire e-(x-a)2. Furthermore, you can ''spread out'' or ''sharpen'' the curve by dividing the exponent by a chosen number.

Cheers,

Timkin

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