◀ ▲ ▶History / 19th-century / Person: D'Ocagne, Maurice
Person: D'Ocagne, Maurice
Maurice d'Ocagne was a French engineer and mathematician. He founded the field of nomography, the graphic computation of algebraic equations.
Mathematical Profile (Excerpt):
- Maurice was educated at the Collège Chaptal, and the Lycée Fontanges.
- These papers by d'Ocagne included Nomographie Ⓣ(Nomography); les Calculs usuels effectués au moyen des abaques Ⓣ(The usual calculations using an abacus) (1891); Le Calcul simplifié par les procédés mécaniques et graphiques Ⓣ(Simplified calculation by mechanical and graphic processes) (1894); Sur la représentation monographique des équations du second degré à trois variables Ⓣ(On the monographic representation of quadratic equations with three variables) (1896); Théorie des équations représentables par trois systèmes linéaires de points cotés Ⓣ(Theory of equations represented by three linear systems of edge points) (1897); and Application de la méthode nomographique la plus générale, résultant de la superposition de deux plans, aux équations à trois et à quatre variables Ⓣ(Application of the most general nomograph method resulting from the superposition of two planes to equations with three and four variables) (1898).
- In 1899 d'Ocagne published Traité de Nomographie Ⓣ(Treatise on nomography).
- D'Ocagne published the book Cours de Géométrie descriptive et de Géométrie infinitésimale Ⓣ(Course of descriptive geometry and infinitesimal geometry) in 1896.
- In 1901 d'Ocagne was appointed director of the French mapping service.
- Let us mention that d'Ocagne also wrote literary works under the pseudonym Pierre Delix.
- D'Ocagne was one of the three invited lecturers, giving two lectures on Nomography.
Born 26 March 1862, Paris, France. Died 23 September 1938, Le Havre, France.
View full biography at MacTutor
Thank you to the contributors under CC BY-SA 4.0! 
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- non-Github:
- @J-J-O'Connor
- @E-F-Robertson
References
Adapted from other CC BY-SA 4.0 Sources:
- O’Connor, John J; Robertson, Edmund F: MacTutor History of Mathematics Archive
