Parametric
Converted by
Mathematica
September 13, 2000
![[Graphics:../Images/index_gr_6.gif]](../Images/index_gr_6.gif)
![[Graphics:../Images/index_gr_7.gif]](../Images/index_gr_7.gif)
![[Graphics:../Images/index_gr_8.gif]](../Images/index_gr_8.gif)