Cauchy

Cauchy, Augustin Louis, mathematician, was born in 1789 at Paris. At one time tutor to the Comte de Chambord, he was in 1848 appointed to the chair of astronomy at Paris, but on the accession to power of Napoleon III. he retired, and died in 1857. His Memoire sur la Theorie des Ondes afforded a basis for the subsequent development of the undulatory theory of light.