The introduction doesn't appear in table of content. How I can do it in the following example.
\documentclass{book}
%\usepackage{graphicx}
\usepackage{tcolorbox}
\usepackage{setspace}
\renewcommand{\baselinestretch}{1.0}
\title{Operation research}
\author{Dr.C. Andrey Vinajera-Zamora}
\begin{document}
\tableofcontents
\maketitle
\chapter*{Introduction}
In recent years the operation research has played an important role in ...
\chapter{Operation research}
the operation research is ....
\section{Lineal Programming}
The lineal programming is considered
\chapter{Solution methods}
Some solution methods are
\end{document}
\frontmatter. – AML Apr 25 '18 at 14:08