If , , ..., are the Vertices of a finite Polygon with no ``minimal sides'' and
the side meets a curve in the Points and , then

where denotes the Distance from Point to .

**References**

Coolidge, J. L. *A Treatise on Algebraic Plane Curves.* New York: Dover, p. 190, 1959.

© 1996-9

1999-05-26