-\documentclass[11pt,a4paper]{article}
-\usepackage[latin1]{inputenc}
-\usepackage{amsmath}
-\usepackage{amsfonts}
-\usepackage{amssymb}
-\author{ghidouche}
-\title{Paper1_kahina}
-\begin{document}
-\section{Root finding problem}
-we consider a polynomial
-$p(x)=\sum{a_{i}x^{i}}=a_{n}\prod(x-\alpha_{i}), a_{0} a_{n}\neq0,$
-of degree \textit{n}having coefficients in the complex \textit{c} and zeros \alpha_{i},\textit{i=1,...,n}.
-the root finding problem consiste to find all n root of \textit{p(x)}. the problem of finding a root is equivalent to the problem of finding a fixed-point. To see this consider the fixed-point problem of finding the
-n-dimensional vector x such that
-
-\end{document}
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