The cow in the field
I assume the cow-in-field problem is tough-- I certainly haven't a clue how to do it analytically. But the answer is easy enough: if the cow is tethered to the edge of the field its rope should be 1.31899099 times the radius of the field.
(Or to be more precise, 1.15872 84730 18121 51783 times the radius. Wrong answer above due to emptyheadedness.)
Last edited by Tim Zukas; 2nd December 2002 at 18:02.