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.
- Born: 8 June 1745 in Vestby (near Dröbak), Norway
- Died: 25 March 1818 in Copenhagen, Denmark
Theorems and Definitions
- The actual originator of what is now known as the Argand diagram.
- 1797: Om Directionens Analytiske Betegning ("On the Analytical Representation of Direction")