A formula for the $n^{th}$ derivative of the quotient of two functions

Abstract

As the title suggests, we give a formula for the $n^{th}$ derivative of a quotient of two functions, analogous to Leibniz's formula for the product. This particular note has remained unpublished since 2007 (available only my website), however it has received several citations. As a result, it now appears on ArXiv for future reference.