Mathematician:Guillaume de l'Hôpital

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French mathematician best known for L'Hôpital's Rule, although this was in fact discovered by Johann Bernoulli.




  • Born: 1661 in Paris, France (precise date uncertain)
  • Died: 2 Feb 1704 in Paris, France


Results named for Guillaume de l'Hôpital can be found here.


Notable Quotes

I have made free use of their [ the Bernoulli brothers ] discoveries, so that I frankly return to them whatever they please to claim as their own.

Also known as

Guillaume de l'Hôpital is the shortened version of his full name and title, which was: Guillaume-François-Antoine Marquis de l'Hôpital, Marquis de Sainte-Mesme, Comte d'Entremont and Seigneur d'Ouques-la-Chaise.

Some sources omit the hyphens: Guillaume François Antoine Marquis de l'Hôpital.

His name is alternatively rendered l'Hospital, which was how he himself rendered it -- however, the French language changed and the silent s was changed to a circumflex.

Whether the surname is prefixed with an uppercase L or not is also variable: l'Hôpital or L'Hôpital.