Very nice script!

Fermat Spiral:
_FxGraph3D a*c*sqrt(v)*cos(v);b*c*sqrt(v)*sin(v);0;0;1;0;6.283185307179586;0;50;1;1;1;UV

This can be pasted to the command window in Moi.
1. Highlight and CTRL-C the entire Fermat Spiral equation line above, _FxGraph3D...;UV
2. In Moi, press TAB key, and CTRL-V paste, then press Return. Voila

The a, b, and c values will scale the curve.
A negative c will rotate the curve.
A negative a and positive b will Mirror the curve.
a, b, and c are not really needed, as Moi can do these actions already.

- Brian

I just did a Fermat Spiral script, but can now delete it :-)
Or add some bells and whistles.