Ken wrote:

> Here is a string that generates a figure eight plucked from
> an old o-scope manual.
>
> The equation:
> x=sin(b t+c);y=sin t   {0,2p}   {b:2}   {c:p}
>
> The ; separate the parametric equations
> The first {} with the comma is the range.
> The second and third {} with the colon set variables b and c
> p = pi
>
> How would this be plugged into Peters code ?
>
> Ken
>

I answered this one for myself

change

From:
#declare coeff_X=2;
#declare coeff_Y=5;
#declare coeff_Z=7;
To:
#declare coeff_X=1;
#declare coeff_Y=2;
#declare coeff_Z=1;

Makes a nice figure eight bow tie looking thing.

Ken

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