Girard desargues biography of abraham lincoln

French mathematician and engineer (1591–1661)

Girard Desargues (French:[ʒiʁaʁdezaʁɡ]; 21 February 1591 – September 1661) was a French mathematician and engineer, who is considered one of the founders of projective geometry.^[1]Desargues' theorem, the Desargues graph, and the crater Desargues on the Moon are named in his honour.

Biography

Born in Lyon, Desargues came from a family devoted to service to the French crown. His father was a royal notary, an investigating commissioner of the Seneschal's court in Lyon (1574), the collector of the tithes on ecclesiastical revenues for the city of Lyon (1583) and for the diocese of Lyon.

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Girard Desargues worked as an architect from 1645. Prior to that, he had worked as a tutor and may have served as an engineer and technical consultant in the entourage of Richelieu. Yet his involvement in the Siege of La Rochelle, though alleged by Ch.

Weiss in Biographie Universelle^[2