Florimond de Beaune was a French jurist and mathematician and an early follower of René Descartes, born at Blois on 7 October 1601 and dying there on 18 August 1652. R. Taton calls him a typical example of the erudite amateurs active in seventeenth-century science. In a letter to Descartes in 1638 he posed a problem that can be reformulated in modern notation as a differential equation, 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 finds upper and lower bounds for the solutions of quadratic and cubic equations as simple functions of their coefficients, and he also wrote the Notae breves that introduced the 1649 edition of Descartes's La Géométrie.
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Source Florimond de Beaune (Wikipedia)
Source Florimond de Beaune (Wikipedia)
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Florimond de Beaune (7 October 1601, Blois – 18 August 1652, Blois) was a French jurist and mathematician, and an early follower of René Descartes.
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1. Florimond de Beaune (Wikipedia)
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Florimond de Beaune (7 October 1601, Blois, 18 August 1652, Blois) was a French jurist and mathematician, and an early follower of René Descartes.
Biography, birth
Florimond de Beaune (7 October 1601, Blois, 18 August 1652, Blois) was a French jurist and mathematician, and an early follower of René Descartes.
Biography, gender
Taton calls him "a typical example of the erudite amateurs" active in 17th-century science.
In Branch: Differential Equations, Lead, field of work
In a 1638 letter to Descartes, de Beaune posed a problem that can be reformulated in modern notation as solving the differential equation dydx=αy−x now seen as the first example of the inverse tangent method of deducing properties of a curve from its tangents.
In Branch: Algebra, Lead, field of work
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.
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