Category includes webpages that gives information about contributors to the development of a systematic method of solve of problems with the use of unknowns, graphing and using deductive reasoning to proof formula theorems. 1. al-Khwarizmi - Abu Ja'far al-Khwarizmi (780-850) - Arab mathematician, lived when spread of ideas was very slow, wrote Hisab al-jabr wal-muqabala, concepts of the Middle East. The "al-jabr" gave us the word algebra." introduced the decimal system, rules for solving linear and quadratic equations, the word "algorithm" comes from his name. 2. Francois Viete (1540-1603) - Known as the father of modern algebra, because of his use of letters to represent variables and the beginning to use geometric graphs to represent algebraic formulas. Page features biography, political background, lecture topics, and a list of some published works.

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