and hints for elegant solutions are welcome (no, I don't have one).
Dan M
Dan MacIsaac, Associate Professor of Physics, SUNY-Buffalo State College
222SciBldg BSC, 1300 Elmwood Ave, Buffalo NY 14222 USA 716-878-3802
<macisadl@buffalostate.edu> <http://PhysicsEd.BuffaloState.edu>
Physics Graduate Coordinator & Dept Chair Pro Tem (acting Jan-Aug 2008)