|
||||||||||||||||
|
||||||||||||||||
|
|
|
|
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 well-known 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 96-gon, and found a better approximation of 3.1419. A Chinese mathematician Lui Hui took Archemedes' method farther. He used a 3,072-gon and approximated pi to have a value of 3.1416. A very good approximation. The value of Pi to the 20th decimal place is 3.14159 26535 89793 23846
|
|
|
© 2000-2008 Logicville
|