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Servois' 1817 "Memoir on Quadratures" – About the Authors

Robert E. Bradley (Adelphi University) and Salvatore J. Petrilli, Jr. (Adelphi University)


Rob Bradley ( is a professor in the Department of Mathematics and Computer Science at Adelphi University.  He’s the president of the Euler Society, past Chair of HOM SIGMAA (the History of Mathematics Special Interest Group of the MAA), and past president of the CSHPM (Canadian Society for History and Philosophy of Mathematics).  With Ed Sandifer, he wrote Cauchy's Cours d'analyse: An Annotated Translation and edited Leonhard Euler: Life, Work and Legacy.  He and Ed collaborated with Sal Petrilli on the definitive English translation of l’Hôpital’s calculus textbook.

Salvatore J. Petrilli, Jr. ( is an Associate Professor of Mathematics and Department Chair at Adelphi University. His general research interests include history of mathematics, mathematics education, and applied statistics. However, the majority of his research has been devoted to the life and mathematical contributions of François-Joseph Servois. He is the author of Servois' Solutions peu connues de différens problèmes de géométrie-pratique and, along with Robert E. Bradley and C. Edward Sandifer, published L'Hôpital's Analyse des infiniments petits: An Annotated Translation with Source Material by Johann Bernoulli.

Robert E. Bradley (Adelphi University) and Salvatore J. Petrilli, Jr. (Adelphi University), "Servois' 1817 "Memoir on Quadratures" – About the Authors," Convergence (May 2019)