The inner product is a generalization of the dot product of vectors. Geometry and Algebra in Ancient Civilizations. He pursued investigations in mathematics and physics in his spare time (his judicial work suffered). Thus, if similar figures with areas A, B and C are erected on sides with corresponding lengths a, b and c then: Aa2Bb2Cc2,displaystyle frac Aa2frac Bb2frac Cc2, ABa2c2Cb2c2C.displaystyle Rightarrow ABfrac a2c2Cfrac b2c2C. "The Pythagorean proposition: A proof by means of calculus". MacTutor Wikipedia IEP Stanford nndb Zeno of Elea (c. Brunn-Minkowski Hasse-Minkowski Functional Wikipedia MacTutor FB Jacques Hadamard, analyst (1865-1963) In 1892, he obtained his doctorate and was awarded the French Academy's Grand Prix for completing the work of Riemann on the Zeta function. .

Collge de France (1865). These form two sides of a triangle, CDE, which (with E chosen so CE is perpendicular to the hypotenuse) is a right triangle approximately similar to ABC.

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A correspondant of Martin Gardner, he inspired Bucky Fuller and.C. . "neralization of Pythagorean theorem". Main article: Law of cosines The Pythagorean theorem is a special case of the more general theorem relating the lengths of sides in any triangle, the law of cosines: 48 a2b22abcosc2,displaystyle a2b2-2abcos theta c2, where is the angle between sides a and. This shows the area of the large square equals that of the two smaller ones. Quadratic reciprocity MacTutor Wikipedia Weisstein Facebook nndb Simon Poisson (1781-1840; X1798) Among his many mathematical contributions is a very abstract construct in analytical mechanics ( Poisson Brackets, 1809) which helped Dirac formulate a precise correspondence between classical and quantum mechanics (Sunday, Sept. In 1858, Cayley established (without a formal proof ) the Cayley-Hamilton theorem : A matrix is a zero of its characteristic polynomial.

A Time-line for the History of Mathematics (Many of the early dates are approximates) This work is under constant revision, so come back later.

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In probability theory and statistics, Bayes theorem (alternatively Bayes law or Bayes' rule, also written as Bayess theorem ) describes the probability of an event, based on prior knowledge of conditions that might be related to the r example, if cancer is related to age.

Bayes theorem, a persons age can be used to more.

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