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When doing quick estimates, 3 is a rough approximation of π, 3.1415..., and a very rough approximation of e, 2.71828... 3 is the first Mersenne prime, as well as the second Mersenne prime exponent and the second double Mersenne prime exponent, for 7 and 127, respectively. 3 is also the first of five known Fermat primes, which include 5, 17 ...
[2] [3] Historically, the concept of a proof and its associated mathematical rigour first appeared in Greek mathematics , most notably in Euclid 's Elements . [ 4 ] Since its beginning, mathematics was primarily divided into geometry and arithmetic (the manipulation of natural numbers and fractions ), until the 16th and 17th centuries, when ...
Produced by J.C.Staff and directed by Hiroaki Sakurai, [2] Maid Sama! follows the relationship and romance between Misaki Ayuzawa, the female student council president of Seika High School, an all-boys turned co-ed school though still male-dominated, and Takumi Usui, the mysterious and the most popular boy at Seika High School, who knows that ...