Mathematician:Lorenzo Mascheroni

Professor of mathematics at Pavia.

Wrote Geometria del Compasso, published in 1797, in which he showed that any geometrical construction that can be made with compasses and straightedge can also be achieved by using only compasses. This had, however, already been demonstrated by Georg Mohr in 1672.

Published in his 1790 work Adnotationes ad Calculum Integrale Euleri a calculation to 32 places of the value of what is now known as the Euler-Mascheroni Constant. However, only the first 19 places were accurate. The rest were corrected in 1809 by Johann von Soldner.

Nationality
Italian

History

 * Born: May 13, 1750, near Bergamo, Lombardy
 * Died: July 14, 1800, Paris, France

Theorems and Definitions

 * Mohr-Mascheroni Theorem (independently of Georg Mohr)
 * Euler-Mascheroni Constant

Books and Papers

 * 1790: Adnotationes ad Calculum Integrale Euleri
 * 1797: Geometria del Compasso