Pierre Charles Francois Dupin (1784-1873),French mathematician. Dupin was born in Varzy,central France,and studied mathematics under Monge at the Ecole Polytechnique in Paris. While still an undergraduate he discovered Dupin cyclides,a type of torus. In 1803 he graduated and became a naval engineer although he continued his researches in topology. In 1813 he published Developments in Geometry,introducing the Dupin indicatrix that characterises the local shape of a surface. He invented the thematic,or chloropleth map when he published a map showing the distribution of illiteracy in France as shadings. In later life he was an active politician | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Royal Institution of Great Britain |
Bildgröße: | 3891 px × 4606 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |