Mathematician:Bonaventura Francesco Cavalieri

Italian mathematician who worked on optics and motion.

His approach to geometry was a precursor to integral calculus.

Introduced the logarithm to Italy.

A disciple of Galileo. Galileo himself said of him:
 * "Few, if any, since Archimedes, have delved as far and as deep into the science of geometry."

Nationality
Italian

History

 * Born: 1598, Milan, Habsburg Empire (now Italy)
 * 1615: Joined the religious order Jesuati in Milan, where he met and was greatly influenced by Galileo
 * 1616: Transferred to the Jesuati monastery in Pisa
 * 1619: Applied for the chair of mathematics in Bologna but considered too young
 * 1621: Became a deacon and assistant to Cardinal Federico Borromeo at monastery in Milan
 * 1623: Became prior of St Peter's at Lodi
 * 1626: Went to the Jesuati monastery in Parma
 * 1629: Appointed to chair of mathematics at Bologna
 * Died: 30 Nov 1647, Bologna, Papal States (now Italy)

Theorems

 * Cavalieri's Principle (also known to Zu Geng)

Books and Papers

 * Lo Specchio Ustorio, overo, Trattato delle settioni coniche (The Burning Mirror, or a Treatise on Conic Sections)
 * 1635: Geometria indivisibilibus continuorum nova quadam ratione promota (Geometry, developed by a new method through the indivisibles of the continua)
 * Exercitationes geometricae sex
 * Directorium Generale Uranometricum
 * 1646: Trattato della ruota planetaria perpetua
 * Tables of logarithms

Also see

 * , Chapter $$\text {A}.14$$