\documentclass[11pt]{book}  % Default = letterpaper
\usepackage[paperheight=24cm, paperwidth=16cm, top=3cm, bottom=2cm, footskip=20pt, left=2cm, right=2cm]{geometry}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage[extrafootnotefeatures]{xepersian}
%---------- footnote style dar halate \normalfootnote
\makeatletter
\renewcommand{\@makefntext}[1]{\parindent 1em
\noindent\hbox to 1.8em{}% if you want to indent footnote text you can change the width of the hbox (e.g. \hbox to 2em{})
\llap{\if@RTL\@thefnmark-\else\persianfont-\@thefnmark\fi\,\,}#1}  % \hbox to -0.2em{}
\makeatother
%----------------
\makeatletter
\@addtoreset{footnote}{page}
\makeatother
\paragraphfootnotes
\footmarkstyle{-#1 }   % style shomregozari footnote dar halate estefade az \paragraphfootnotes
\setlength{\footmarkwidth}{13pt}
%----- fonts
\settextfont[Scale=1]{XB Niloofar}
\setlatintextfont[Scale=0.83]{Times New Roman}
\setdigitfont[Scale=0.8]{Persian Modern} 
\DeclareMathSizes{12pt}{9.5pt}{7pt}{5pt} 
\SepMark{-}
%------
\begin{document}
\pagestyle{plain}
\author{محمدی}
\title{این کتاب}
\date{ }
\maketitle
\pagenumbering{adadi}
\tableofcontents
\input{chapter1}
\end{document}