# Mathematician:Guillaume de l'Hôpital

## Contents

## Mathematician

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**.

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

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.

## Nationality

French

## History

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

## Theorems

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

## Books and Papers

- 1696:
*L'Analyse des Infiniment Petits*(considered to be the first textbook on calculus) - 1707:
*Traité anlytique des sections coniques*

## 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.*

## Sources

- John J. O'Connor and Edmund F. Robertson: "Guillaume de l'Hôpital": MacTutor History of Mathematics archive

- 1992: George F. Simmons:
*Calculus Gems*... (previous) ... (next): Chapter $\text {A}.20$: The Bernoulli Brothers