Solving quintic polynomial equations using Graeffe\u27s method (with computer program)

This paper presents an algorithm in finding the real roots of the general quintic polynomial equation. The algorithm uses the formula of Graeffe\u27s Method. Likewise, it incorporates Descartes\u27 Rule of Signs. Included in this paper is a computer program written in Turbo Pascal version 5.5. The program accepts quintic polynomial equations whose numerical coefficients are all real.In case a pair of imaginary roots occurs, only the real roots of that quintic equation will be shown. A graph is supplied to show the efficiency of the program