# Mathematician:Caspar Wessel

## Mathematician

Norwegian–Danish mathematician and cartographer who, in $1799$, was the first person to describe the geometrical interpretation of complex numbers as points in the complex plane.

The younger brother of poet and playwright Johan Herman Wessel.

Norwegian

## History

• Born: 8 June 1745 in Vestby (near Dröbak), Norway
• Died: 25 March 1818 in Copenhagen, Denmark

## Publications

• 1797: Om Directionens Analytiske Betegning ("On the Analytical Representation of Direction")