death_date death_place birth_place fields birth_date residence image article_title name
18 january 1873 paris , france varzy , france mathematics engineering economics 6 october 1784 france charles dupin.jpeg charles dupin
 pierre charles françois dupin
charles dupin

pierre charles françois dupin -lrb- 6 october 1784 , varzy , nièvre -- 18 january 1873 , paris , france -rrb- was a french catholic mathematician , engineer , economist and politician , particularly known for work in the field of mathematics , where the dupin cyclide and dupin indicatrix are named after him ; and for his work in the field of statistical and thematic mapping , in 1826 he created the earliest known choropleth map .
