power vs exp

[mwforum@xxxxxxxxxxxxxxxxxx (Daniel Ajoy)]

Hi,

plot plots a bell curve

bellcurve is the formula of the bell curve 
(also known as normal distribution curve)

the bell curve formula includes "exp".

Daniel




On 22 Apr 2005 at 20:41, Jeff Knope wrote:

> Hey,
> 
> The operative word there was "clarify."
> 
> --Jeff
> 
> 
> 
> >> http://www.ndt-ed.org/EducationResources/Math/Math-e.htm
> >>
> >> The constant e figures into bell-shaped curves, among other things, just 
> >> as
> >> the constant pi figures into circles.
> >
> >
> > to bellcurve :x :mu :sigma
> > output 1 / (:sigma * sqrt 2 * pi) * exp -0.5 * power ((:x - :mu) / :sigma) 
> > 2
> > end
> >
> > to plot
> > cg pu
> > dotimes [i 400] [
> > let [x 3 * (:i - 200) / 200]
> > let [y bellcurve :x 0 1]
> > setpos list 100 * :x 400 * :y
> > pd
> > ]
> > end
> >
> >
> > Daniel
> >
> >
> >
> >
> >
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