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| | Derivatives |
 | | As a result of the translation of Descartes’ Geometry into Latin by Frans van Schooten (1615--1661) and the extensive explanations by van Schooten, Florimonde de Beaune (1601--1652) and Johan Hudde (1628-1704), the principles and benefits of analytic geometry became more widely known. |
 | | In the late 1650s, there was a good deal of correspondence between Huygens, Hudde, van Schooten, Sluse, and others concerning tangents of many algebraic curves; Hudde and Sluse especially sought simpler and standardized algebraic methods that could be applied to a greater variety of curves. |
 | | For Gilles Personne de Roberval (1602--1675), a curve was the path of a moving point, and he derived a mechanical method for finding the tangent to many curves, including the cycloid. |
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