Here are the same curves, with normals shown to the inner path.
Converted by
Mathematica
November 7, 2001
![[Graphics:../Images/index_gr_29.gif]](../Images/index_gr_29.gif)
![[Graphics:../Images/index_gr_30.gif]](../Images/index_gr_30.gif)
![[Graphics:../Images/index_gr_31.gif]](../Images/index_gr_31.gif){kind=small}