The Pythagorean Theorem: A 4,000-Year History by Eli Maor
Princeton University Press; 1ST edition | June 10, 2007 | English | ISBN: 0691125260 | 288 pages | DJVU | 6 MB
By any measure, the Pythagorean theorem is the most famous statement in all of mathematics, one remembered from high school geometry class by even the most math-phobic students. Well over four hundred proofs are known to exist, including ones by a twelve-year-old Einstein, a young blind girl, Leonardo da Vinci, and a future president of the United States. Here–perhaps for the first time in English–is the full story of this famous theorem.