Mathematician:Carl Anton Bretschneider

Mathematician
German mathematician who worked in geometry, number theory, and history of geometry.

He also worked on logarithmic integrals and mathematical tables.

Probably the first mathematicians to use the symbol $\gamma$ for the Euler-Mascheroni constant, which he published in a paper of $1837$.

Nationality
German

History

 * Born: 27 May 1808, Gotha, Germany (then in the Ernestine Duchies)
 * Died: 6 November 1878

Theorems and Definitions

 * Bretschneider's Formula