Description: 
Demonstrates the computation of PI according to
Archimedes.
Archimedes computed PI by approximating the
unit circle through regular polygons with N edges. Archimedes
developed a formula that allowed him to compute the length B of
the edge of a regular polygon with 2N edges from the length A of
an edge of a polygon with N edges:
B = sqrt( 2  sqrt( 4  A^2 ) )
Note: This file was created by a student as a partial fulfillment for
the requirements of the course "Classical Mathematical Theorems and their
Visualization on the Computer", Winter term 2002/2003, Stuttgart
University.
