mpoppers@aecom.UUCP (06/19/84)
Given rational N and P, find all integers a,b,x,y satisfying
a + y = b + x, for which N = (ay - bx)/(xy - ab) and P = (xy - ab)/(ax - by).
-- Amer. Math. Monthly 91:6
(solution listed there; don't peek!)
If you want to forward solutions to me instead of the Net, go right
ahead -- but only until the end of June; use the mail after that time. Have
a good summer, everybody!
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