#
Tetrad Mapping, Plots of NPDvsT for various M

To use, fill in the Boxes labeled **NPD** and **T**, and one of
the two boxes **Number of Points** or **PD**

The Xmin and Xmax reported are generated by calculating
X for R - 2*Rsdev and X for R+2*R. This gives an approximate
95% confidence interval about X.