Florimond de Beaune, Date of Birth, Place of Birth, Date of Death
TweetFlorimond de Beaune
French jurist and mathematician (1601–1652)
Date of Birth: 
Place of Birth: Blois, Centre-Val de Loire, France
About Florimond de Beaune
- Florimond de Beaune (7 October 1601, Blois – 18 August 1652, Blois) was a French jurist and mathematician, and an early follower of René Descartes.
- R.
- Taton calls him "a typical example of the erudite amateurs" active in 17th-century science.In a 1638 letter to Descartes, de Beaune posed the problem of solving the differential equation d ? y d ? x = a y - x {\displaystyle {\frac {\operatorname {d} y}{\operatorname {d} x}}={\frac {\alpha }{y-x}}} now seen as the first example of the inverse tangent method of deducing properties of a curve from its tangents.His Tractatus de limitibus aequationum was reprinted in England in 1807; in it, he finds upper and lower bounds for the solutions to quadratic equations and cubic equations, as simple functions of the coefficients of these equations.
- His Doctrine de l'angle solide and Inventaire de sa bibliothèque were also reprinted, in Paris in 1975.
- Another of his writings was Notae breves, the introduction to a 1649 edition of Descartes' La Géométrie.
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