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AGRANI SAMKALP SILVER JUBILEE SOUVENIR



            “Kerala school of mathematics” (a group of mathematicians  of analysis of Descartes and Cavalieri. By integration, he
            in southern part of India) expanded on Bhaskara's work and  proved that the ratio of area enclosed between the curve y=x ,
                                                                                                                      m
            further advanced the development of calculus in India. It is  x-axis, and any ordinate x=h, to that of the parallelogram on
            believed that Madhava (1340-1425) and the Kerala School  the same base and of the same height is 1/(m+1), extending
            mathematicians (including Parameshvara, Nilaknta,       Cavalieri's quadrature formula.
            Jyeshtadeva) developed initial theory of calculus before 14th  A critical breakthrough occurred in November 1675,
            century. Their main discovery was integral of x^n.      when Gottfried Wilhelm Leibniz employed integral calculus
                                                                    for the first time to find the area under the graph of a function
                                                                    y = f(x). He denoted the infinitesimal increments of abscissas
                                                                    and ordinates dx and dy, and introduced several notations
                                               Pages       from     used to this day, for instance the integral sign ò, representing
                                               Rigveda              an elongated S, from the Latin word summa (sum/total), and
                                               manuscript     of    the d used for differentials, from the Latin word differentia
                                               mathematics in       (difference/diversity/distinction).But Leibniz did not publish
                                               Sanskrit on paper    anything about his calculus until 1684.




               The Arabs and Persians too made notable contributions
            to the foundation of calculus a few centuries before
            Madhavan. In his Al-Mu'adalat (Treatise on Equations),
            Sharaf-al-Din-al-Tusi, a 12th century mathematician in
            Middle east, found algebraic and numerical solutions of cubic
            equations and was the first to discover the derivative of cubic
            polynomials, which is an important result in differential
            calculus.
                                                                    Graphs referenced                Problem formulated
               In 1625, Grégorie de St Vincent developed a method of
                                                                                                       and solved by
            infinitesimals which he thought he could use to find     in Leibniz' article              Leibniz Calculus.
                                                                         of 1684
            quadrature of a circle. In  Methodus ad disquirendam
            maximam et minimam and in De tangentibus linearum          In 1668, James Gregory published his book Geometriae
            curvarum, Pierre de Fermat developed a method (adequality)  Pars Universalis in which he gave both the first published
            for determining maxima, minima, and tangents to various  statement and proof of a rudimentary form of the fundamental
            curves that was equivalent to differential calculus. In these  theorem of the calculus which was strongly geometric in
            works, Fermat obtained a technique for finding the centers  character. Later, Isaac Barrow proved a more generalized
            of gravity of various plane and solid figures, which led to his  version of the theorem and such deserves credit as one of the
            further work in quadrature. In his two treatises: Mirifici  inventors of modern calculus. His student Isaac Newton
            Logarithmorum Canonis Descriptio (Description of the    (1642-1727) completed the development of the surrounding
            Marvelous Canon of Logarithms), which was published in  mathematical theory.
            1614, John Napier gave an account of the nature of
            logarithms. In 1627, Bonaventura Cavalieri developed a new
            geometrical approach called the method of indivisibles which
            is fundamental feature of integral calculus. He also proved                     Isaac Newton (1642-1727)
                                                                                        published Analysis per quantitatum
                             which is now known as Cavalieri's quadrature                 series, fluxiones ac differentias
            formula.
                                                                                                    in 1711.
               In 1656 John Wallis published his most important work
            Arithmetica Infinitorum, in which he extended the methods





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