Analyse des infiniment petits pour l'intelligence des lignes courbes

Analyse des Infiniment Petits pour l'Intelligence des Lignes Courbes (literal translation: Analysis of the infinitely small to understand curves) of 1696, is the first textbook published on the infinitesimal calculus of Gottfried Wilhelm Leibniz. It was written by the French mathematician Guillaume de l'Hôpital, and treated only the subject of differential calculus.