Théodore Florentin Moutard (27 July 1827 – 13 March 1901) was a French mining engineer who worked at the

École des Mines École may refer to: * an elementary school in the French educational stages normally followed by secondary education Secondary education or post-primary education covers two phases on the International Standard Classification of Education scal ...

and contributed to mathematical geometry. The Moutard transformation in inverse geometry is named after him. Moutard was born in Soultz, Haut-Rhin, to Florentin and Elisabeth Bernon. He was educated at the École Polytechnique and graduated in 1846 and entered the École des Mines and after graduating in 1849 he joined the Mining corps but was discharged in 1852 as he refused to take the oath required following the overthrow of Napoleon III. He joined back in 1870 and became a professor of mechanics at the École des Mines in 1875. He was also an examiner for the École Polytechnique from 1883. Moutard contributed to the ''La grande encyclopédie'' and his mathematical work was on algebraic surfaces and differential geometry. He collaborated with Victor Poncelet on elliptic functions. He was made Commander of the

Legion of Honor The National Order of the Legion of Honour (french: Ordre national de la Légion d'honneur), formerly the Royal Order of the Legion of Honour ('), is the highest French order of merit, both military and civil. Established in 1802 by Napoleon ...

in 1899. Moutard married twice and had two sons and two daughters. One of his sons was Douard Julien Moutard (1877-1948). One daughter Berthe married the mathematician

Hermann Laurent Paul Matthieu Hermann Laurent (2 September 1841, in Luxembourg City – 19 February 1908, in Paris, France) was a French mathematician. Despite his large body of works, Laurent series expansions for complex functions were ''not'' named after him, ...

. A daughter from his second marriage, Elisabeth married André Bujeaud, a politician and photographer, in 1868.

References

{{DEFAULTSORT:Moutard, Theodore 1827 births 1901 deaths French mathematicians Recipients of the Legion of Honour