Amazing that after years RHMSD is now unknown from the
mathematical society, except for the stuff posted in
the Mathsoft Collaboratory [now PTC] .
But not accessible if you don't have Mathcad .
Google for: "Contour RHMSD"

This work sheet computes in 42 min [1.66GHz]

Jean

Contour RHMSD uvz Copy.sm (152 KiB) downloaded 87 time(s).

... here is the negative.

Contour RHMSD uvz Copy.sm (154 KiB) downloaded 77 time(s).