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Newton's Theorem

If each of two nonparallel transversals with nonminimal directions meets a given curve in finite points only, then the ratio of products of the distances from the two sets of intersections to the intersection of the lines is independent of the position of the latter point.


Coolidge, J. L. A Treatise on Algebraic Plane Curves. New York: Dover, p. 189, 1959.

© 1996-9 Eric W. Weisstein