The Scientific Archive

Propositiones philosophicae (“Propositions of Philosophy”), a series of essays on natural philosophy and history, published in 1738.

Agnesi’s best-known work, Instituzioni analitiche ad uso della gioventù italiana (1748; “Analytical Institutions for the Use of Italian Youth”), in two huge volumes, provided a remarkably comprehensive and systematic treatment of algebra and analysis, including such relatively new developments as integral and differential calculus. In this text is found a discussion of the Agnesi curve, a cubic curve known in Italian as versiera, which was confused with versicra (“witch”) and translated into English as the “Witch of Agnesi.”