Bits and Beyond...
PI
Pi is the
ratio of the circumference of a circle to its diameter.
Approximation of pi has began as early as the ancient times. One of
the wellknown one was by the great Greek mathematician Archimedes, who
started approximating Pi by inscribing a hexagon into a circle. With
the hexagon, pi was calculated to have a value of 3. Doubling the number
of sides and inscribing a dodecagon in the same circle, his new value
became closer to pi. He continued until he used a 96gon, and found a
better approximation of 3.1419. A Chinese mathematician Lui Hui took
Archemedes' method farther. He used a 3,072gon and approximated pi
to have a value of 3.1416. A very good approximation.
