Many things are named after the 19th-century French mathematician Augustin-Louis Cauchy: * Binet–Cauchy identity * Bolzano–Cauchy theorem * Cauchy's argument principle * Cauchy–Binet formula * Cauchy–Born rule * Cauchy boundary condition * Cauchy condensation test * Cauchy-continuous function * Cauchy's convergence test * Cauchy (crater) * Cauchy determinant * Cauchy distribution * Cauchy's equation * Cauchy–Euler equation * Cauchy's functional equation * Cauchy formula for repeated integration * Cauchy–Frobenius lemma * Cauchy–Hadamard theorem * Cauchy horizon * Cauchy's integral formula * Cauchy's integral theorem * Cauchy interlacing theorem * Cauchy–Kovalevskaya theorem * Cauchy matrix * Cauchy momentum equation * Cauchy net * Cauchy number * Cauchy–Peano th