Thomas Simpson

Thomas Simpson was born the August 20th 1710 with Market Bosworth, village of the county of Leicestershire in England.

Biography

Wire of Tisserand, he learned mathematics mainly from way Autodidacte in his youth. In fact, although it went to school in its birthplace, it early made follow the traces of his/her father and work like Tisserand. Its interest for the Mathematical and the Astronomie was poked by a solar eclipse which took place in 1724. Following this event, helped of a teller of good adventure, he learned how to control arithmetic Edward Cocker as well as the concepts of algebra. Some time afterwards, it left its trade of Tisserand and was found main in a school of Nuneaton, not very far from Market Bosworth. Of 1725 until approximately 1733, it thus taught mathematics in this school, while continuing to perfect its own knowledge. With this date, and according to rumors according to which it would have made fear with some of its coeds by convening the demon, it had to flee with his wife towards Derby. The duration of its stay with Derby is not very well-known, on the other hand, one knows that in 1736 it was installed with London where it raised its family. Let us note that he married in 1730 with certain Swinfield, with which he had two children: Elizabeth, born in 1736 and Thomas, born in 1738. At its beginnings with London, return to the sources: it practices the trade of Tisserand again. Moreover, in its spare times, it shares its knowledge in the coffees, at the time often considered as “Penny Universities” for the education which one could acquire there at low cost by listening to the readers there. In 1743, it is named mathematics professor with Woolwich and, two years later, it is elected member of the royal Société of London. It continued to work in London as teacher and researcher in mathematics until his death the May 14th 1761.

Work

The first text that Simpson published concerning mathematics is the Treatise off Fluxions in 1737. The “fluxion”, term employed by Isaac Newton to speak about the derivation of a Fonction continues, was a subject controlled by only some mathematicians at that time. He wrote the second volume besides on this subject in 1750: The Doctrines and Application off Fluxions . This work, also containing work of Roger Dimensions (1682-1716), is regarded besides as one of the best works on the subject.

In 1740, it publishes an article concerning the probabilistic theory: Natural And Laws off Chance . Its work on this subject was based on those of De Moivre. In 1742, he writes off The Doctrine Annuities and Reversions . In 1743, Simpson publishes Mathematical Dissertations one off has Variety Physical and Analytical Subjects in which he discusses, inter alia, of the attraction forces close to the spherical bodies, the theory of the tides and the law of the astronomical refraction. Then comes has off Treatise Algebra (1745), Elements off Geometry (1747), Trigonometry, Plane and Spherical (1748), Select Exercises in Mathematics (1752) and finally Miscellaneous Tracts one Summons Curious Subjects in Mechanics, Physical Astronomy and Special Mathematics (1757).

Among all its work, Simpson is especially recognized thanks to the numerical method of Intégration which bears its name: the Method of Simpson. In a simple way, this method consists in grouping three consecutive points of a curve and to replace the arc of curve passing by these three points by an arc of parabolas in order to calculate the surface under the curve. In spite of the fact that this theory appears in work of Simpson, it is in fact really the realization of Newton, and even as it would already have been used 200 years before by Johannes Kepler.

Sources

http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Simpson.html
http://www.maths.tcd.ie/pub/HistMath/People/Simpson/RouseBall/RB_Simpson.html
http://www.absoluteastronomy.com/encyclopedia/t/th/thomas_simpson.htm
http://77.1911encyclopedia.org/S/SI/SIMPSON_THOMAS.htm
http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/S/SimpsonT/1.html

December 5th 1745 -->

Random links: