拉格朗日(Joseph Louis Lagrange)是意大利—法国力学家、数学家、天文学家,1736年1月25日生于意大利都灵(Turin).父亲是驻都灵的法国陆军骑兵部队的一名会计官,后来从商,一度十分富有.拉格朗日是他家11个兄弟姊妹中最长者,父亲希望他经商 Joseph Louis Lagrange was an Italian-French mechanic, mathematician, astronomer and was born in Turin, Italy, on January 25, 1736. His father is an accountant with the French Army Cavalry Corps in Turin Officer, and later from the business, once very rich.Lagrang is the longest of his 11 brothers and sisters, his father wants him to do business