Pythagoras

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…Publications (orig. 1908) T. Pappas, The Joy of Mathematics, Wide World Publishing/Tetra, 1989 Internet: http://www.mathgym.com.au/history/pythagoras/pyth.htm http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Pythagoras.html http://www.utm.edu/research/iep/p/pythagor.htm http://history.hanover.edu/texts/presoc/pythagor.htm http://www.math.sfu.ca/histmath/Europe/Euclid300BC/PYTHAGORAS.HTML http://www.newadvent.org/cathen/12587b.htm http://forum.swarthmore.edu/~isaac/problems/pythagthm.html