Archimedes (*) approximated this number, the number of radians in 180 degrees, by bounding it by the perimeters of 96-sided polygons, finding that it is less than 22 over 7.
This number is squared in the solution to the Basel problem. One experiment to calculate this number exploits the Buffon's needle problem. Archimedes (*) approximated this number, the number of radians in 180 degrees, by bounding it by the perimeters of 96-sided polygons, finding that it is less than 22 over 7. For 10 points, give this ratio of a circle's circumference and diameter, an irrational number approximately equal to 3.14.
This number is squared in the solution to the Basel problem.
pi