[math-fun] Alan "terminates" Arnold

Last night Alan Schoen sent me a solution so much more efficient than my tricuspid that it worked in all four orientations! And here I thought line thickness and the weirdness of the cavity would prevent even copying, let alone solution, given just that lo-res drawing . I'm tempted to ask Alan to sit on his arrangement while I try to "tricuspidize" it. --rwg --------------------------------- Yahoo! oneSearch: Finally, mobile search that gives answers, not web links.