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al_jabr [2007-06-08 00:05] – external edit 127.0.0.1al_jabr [2014-12-04 12:45] (current) nik
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-==== Al'Khwarizmi & Al Jabr ====+==== Al'Khwarizmi & Al Jabr ====
  
 al’Khwarizmi, whose full name is Abu Abd-Allah ibn Musa al’Khwarizmi, was born about AD 790 near Baghdad, and died about 850. His most important contribution, written in 830, was Hisab al-jabr w’al-muqabala. From the al-jabr in the title we get algebra. The treatise develops a system for the solutions of quadratic expressions including geometric principles for completing the square. al’Khwarizmi, whose full name is Abu Abd-Allah ibn Musa al’Khwarizmi, was born about AD 790 near Baghdad, and died about 850. His most important contribution, written in 830, was Hisab al-jabr w’al-muqabala. From the al-jabr in the title we get algebra. The treatise develops a system for the solutions of quadratic expressions including geometric principles for completing the square.
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 Six Types of Quadratics Six Types of Quadratics
-  * Squares equal to roots (x^2 = square root of 2  +  * Squares equal to roots (x^2 = square root of 2 
-  * Squares equal to numbers (x^2 = 2  +  * Squares equal to numbers (x^2 = 2) 
-  * Roots equal to numbers (square root of x = 2  +  * Roots equal to numbers (square root of x = 2 
-  * Squares and roots equal to numbers (x^2 + 3x = 25  +  * Squares and roots equal to numbers (x^2 + 3x = 25 
-  * Squares and numbers equal to roots (x^2 + 1 = 9 +  * Squares and numbers equal to roots (x^2 + 1 = 9
   * Roots and numbers equal to squares (3x + 4 = x^2)    * Roots and numbers equal to squares (3x + 4 = x^2) 
    
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