NAME: John Brillhart ADDRESS: Department of Mathematics University of Arizona Tucson, AZ 85721-0001 EMAIL ADDRESS: jdb@math.arizona.edu TITLE OF TALK: Reverting the Power Series for Real Elliptic Integrals of the First Kind ABSTRACT OF TALK: If we are given the power series of a function f, it is rarely possible to find the general term of the power series of f^{-1} in a usable form. Usually we have to settle for the coefficients only up to some specific degree. In this talk we will find the Maclaurin expansion for f^{-1} when the f series is that of any real elliptic integral of the first kind. The general formula obtained will then be used to prove some periodic divisibility results for the coefficients of the series for f^{-1}.