- Giovanni Ceva
Giovanni Ceva (
December 7 ,1647 –June 15 ,1734 ) was an Italianmathematician widely known for provingCeva's theorem in elementarygeometry . His brother,Tommaso Ceva was also a well known poet and mathematician.Ceva received his education at a
Jesuit college inMilan . Later in his life, he studied at theUniversity of Pisa , where he subsequently became a professor. In 1686, however, he was designated as the Professor ofMathematics at the University of Mantua and worked there for the rest of his life.Ceva studied
geometry for most of his long life. In 1678, he published a now famous theorem onsynthetic geometry in a triangle called Ceva’s Theorem. The theorem states that if you have three line segments drawn from the vertices of a triangle to the opposite side, then the three line segments are concurrent if, and only if, the product of the ratios of the newly created line segments on each side of the triangle is one. He published this new theorem in "De lineis rectis".Ceva not only published his own theorem, but he also rediscovered and published
Menelaus's theorem . He published" Opuscula mathematica" in 1682 and "Geometria Motus" in 1692, as well. In "Geometria Motus", he anticipated theinfinitesimal calculus . Finally, Ceva wrote "De Re Nummeraria" in 1711, which was one of the first books inmathematical economics .Giovanni Ceva also studied applications of mechanics and
statics to geometric systems. At one point, however, he incorrectly resolved that the periods ofoscillation of two pendulums were in the same ratio as their lengths, but he later realized and corrected the error. Ceva also worked onhydraulics . In 1728, he published "Opus hydrostaticum" which discusses his work inhydraulics . In fact, he used his knowledge ofhydraulics to stop a project from diverting the river Reno into the river Po.References
* "Ceva, Giovanni." MacTutor History of Mathematics archive. 2006. O'Connor, John J., and Edmund F. Robertson. http://www-history.mcs.st-andrews.ac.uk/Biographies/Ceva_Giovanni.html
* "Ceva, Giovanni." Encyclopædia Britannica. 2005. Encyclopædia Britannica Online. http://www.britannica.com/eb/article-9002192.
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