They worked on the metric system and advocated a decimal base. Lagrange married for a second time in 1792, his wife being Renée-Françoise-Adélaide Le Monnier the daughter of one of his astronomer colleagues at the Académie des Sciences .
Sila ay nagtrabaho sa panukat na sistema at advocated ng decimal base. Lagrange asawa para sa isang pangalawang panahon sa 1792, ang kanyang asawa na Renee-Françoise-Adelaide Le Monnier ang anak na babae ng isa sa kanyang mga astronomer kasamahan sa Académie des Sciences.