French mathematician and astronomer, member of the French Academy of Sciences. He is the main founder of celestial mechanics and one of the founders of celestial evolution chemistry. He is also the founder of analytical probability theory, so he can be said to be the pioneer of applied mathematics.

Lagrange

Joseph-Louis Lagrange (Joseph-Louis lagrange1735 ~1813) is a French mathematician and physicist. 17361was born in Turin, Italy on October 25th and died in Paris on April 30th, 2003. He has made historic contributions in mathematics, mechanics and astronomy, especially in mathematics.

Legendre

French mathematician. /kloc-0 was born in Paris in September, 752. 181October 1833 died in the same place. 1770 graduated from Masalin college. 1782 won the Berlin Academy Award. 1783 was elected assistant academician of Paris Academy of Sciences, and was promoted to academician two years later. 1795 was elected as a permanent member of the French Academy. After three years as Laplace's teaching assistant, as his successor, he became a professor of mathematics at Paris Teachers College. 18 13 succeeded Lagrange in the astronomical office.