## Gabriel Cramer (1704 - 1752) Swiss mathematician

Gabriel Cramer was a Swiss mathematician born in 1704 in Geneva from parents called Anne Malet Cramer and Jean Cramer, a medical doctor. He submitted a theory about sound at the age of 18 years old in 1722 and was awarded a doctorate. He travelled with many mathematicians of his time. In came back in 1729 in Geneva and became the sole chair of Mathematics at the Academie de Clavin. He passed his life teaching at the academy and also keeping contact with other mathematicians. He died on January 4th in 1752 at Bagnols-sur-Cèze in France.

He lived the movement of enlightment which inspired event such as the French revolution and also the American Revolution. He also lived the declining of the Ottoman Empire.

His major work was

To find the solutions to

He lived the movement of enlightment which inspired event such as the French revolution and also the American Revolution. He also lived the declining of the Ottoman Empire.

His major work was

*Introduction à l’analyse des lignes courbes algébriques*in which he published his rule called*Cramer’s rule*. It was a way of finding the solutions to*n*variables in*n*equations in linear algebra.To find the solutions to

*n*variables in*n*equations in a linear system, it is suggested to listen to the video. Because it explains the way of finding determinants and using the cramer’s rule which is illustrated by:## References

Joy. K. I. (2002)

Vavra M.L. (2010)

Retrieved from: http://scimath.unl.edu/MIM/files/MATExamFiles/Vavra_FinalMEXP_C5.pdf (13-03-13)

Wikipedia,

*On-Line Geometric Modeling Notes Cramer’s rule*, Department of computer science, University of California, Davis Retrieved from: http://graphics.cs.ucdavis.edu/~joy/ecs278/notes/Cramers-Rule.pdf (13-03-13)Vavra M.L. (2010)

*Cramer’s rule*. UNL, university of Nebraska-lincoln, Lincoln, NBRetrieved from: http://scimath.unl.edu/MIM/files/MATExamFiles/Vavra_FinalMEXP_C5.pdf (13-03-13)

Wikipedia,

*18th Century*, Wikipedia Retrieved from: http://en.wikipedia.org/wiki/18th_century (13-03-13)