First edition of the celebrated mathematical textbook on trigonometry by Bonaventura Cavalieri (1598-1647), a student of Galileo and professor in mathematics at Bologna. He discovered the method of indivisibles, the first step in infinitesimal analysing, which revolutionized science after Newton and Leibnitz almost simultaneously discovered infinitesimal calculus. Cavalieri was also the first to introduce logarithms in Italy, and noteworthy developments in trigonometry and astronomy as well. The present work on trigonometry includes excellent logarithmic-trigonometric tables, which according to Riccardi greatly assisted the work of the famous astronomer Domenico Cassini.
With a manuscript note on the title-page, scratched through. Some minor foxing, and some small wormholes in the last flyleaf and folding plate, hardly affecting the illustration. Binding slightly stained. DSB III, pp. 149-153; Honeyman 646; Riccardi I, 328;