Adam Adamandy Kochański

Adam Adam Andy Kochański (* August 5, 1631 in Dobrzyń nad Wisłą, Poland, † May 17 1700 in Teplitz, Bohemia ) was a Polish mathematician.

Kochański attended a high school in Torun and studied from 1652 in Vilnius philosophy, mathematics, physics, and theology. Later he taught, among others, these subjects in Florence, Prague, Wroclaw, Mainz and Würzburg. In 1677 he was in Warsaw for the court mathematician and librarian of King John III. Sobieski.

It is known especially his 1685 developed so-called proximity structure of Kochański, with a square can be constructed, which is almost equal in area to a given circle, that is an approximate solution of the quadrature of the circle.

Kochański has also engaged with the problems of design of mechanical watches.