Gabriel Cramer (31 July 1704 to 4 January 1752) was a Genevan mathematician, born in Geneva to the physician Jean-Isaac Cramer and Anne Mallet, who was of Huguenot origin. He showed promise in mathematics from an early age, received his doctorate from the Academy of Geneva in 1722 at the age of 18, and at 20 was made co-chair of mathematics with Jean-Louis Calandrini. He became sole professor of mathematics in 1734 and was appointed professor of philosophy at the Academy in 1750. He also took part in the politics of the Republic of Geneva, entering the Council of Two Hundred in 1734 and the Council of Sixty in 1750. In 1750 he published his treatise on algebraic curves and Cramer's rule, a general formula for solving linear equation systems using determinants.
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Source Wikipedia: Gabriel Cramer
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Source Cramer's Rule (Wikipedia)
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1. Wikipedia: Gabriel Cramer
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He became the sole professor of mathematics in 1734 and was appointed professor of philosophy at the Academy in 1750.
Cramer's Rule (Wikipedia)
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It is named after Gabriel Cramer, who published the rule for an arbitrary number of unknowns in 1750, although Colin Maclaurin also published special cases of the rule in 1748, and possibly knew of it as early as 1729.
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