\documentclass[oneside]{book} \usepackage{amsmath} \usepackage{amsthm} \usepackage{hyperref} \usepackage{mathtools} \usepackage[italian]{babel} \usepackage[utf8]{inputenc} \usepackage[parfill]{parskip} \usepackage{wrapfig} \usepackage{pgfplots} \pgfplotsset{compat=1.15} \usepackage{mathrsfs} \usetikzlibrary{arrows,angles,quotes} \newcommand{\gfrac}[2]{\displaystyle \frac{#1}{#2}} \newcommand{\abs}[1]{\lvert#1\rvert} \newcommand{\norm}[1]{\lVert \vec{#1} \rVert} \newcommand{\nnorm}[1]{\lVert #1 \rVert} % \renewcommand{\times}{\wedge} \begin{document} \author{Gabriel Antonio Videtta} \title{Appunti di Fisica} \maketitle \tableofcontents \include{1. I moti principali della meccanica newtoniana.tex} \end{document}