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Thomas Ceva

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Mathematician, born at Milan, 21 December, 1648; died there, 23 February, 1737. In 1663 he entered the Society of Jesus. He was a prolific writer on a variety of subjects, especially mathematics and poetry. He is known today only for the theorem in geometry which bears his name. Ceva's Theorem is: three concurrent lines drawn through the vertices of a triangle divide the opposite sides so that the product of the three distance-ratios is equal to unity. Ceva published this important proposition in 1678. It is the dual of the theorem of Menelaus.



Bibliotheque de la Compagnie de Jesus, II, 1015-1023.

About this page

APA citation. McGivney, J. (1914). Thomas Ceva. In The Catholic Encyclopedia. New York: The Encyclopedia Press.

MLA citation. McGivney, James. "Thomas Ceva." The Catholic Encyclopedia. Vol. 16 (Index). New York: The Encyclopedia Press, 1914. <>.

Transcription. This article was transcribed for New Advent by Herman F. Holbrook. Ad majorem Dei gloriam.

Ecclesiastical approbation. Nihil Obstat. March 1, 1914. Remy Lafort, S.T.D., Censor. Imprimatur. +John Cardinal Farley, Archbishop of New York.

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