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I'm working with this files:

\documentclass[12pt]{arabbook}
%%%%%%%%%%% packages
\usepackage{fancyhdr}
 \usepackage{arabtex} 
 \usepackage{amssymb}
 \usepackage{amsmath}
\usepackage{amsfonts}% R ensemble des nombres reels
\usepackage{graphicx}% ajouter des photos
\usepackage{pstricks}% pour dessiner
%%%%%%%%%%%% ab3ad AlsfhA
\textwidth= 15truecm % 
\textheight= 22.27truecm % 
\hoffset= -1.5 cm%truecm %
\voffset= -1.5 cm%truecm %
%%%%%%%%%%
\pagestyle{fancy}
\renewcommand{\headrulewidth}{1.5pt}
\renewcommand{\footrulewidth}{1.5pt}
\renewcommand{\baselinestretch}{1.5}
% `dm Alt^skyl 
\novocalize
% bdAyt Alw_tyqT
\rhead{\RL{Alf.sl Al'awl}}
\lhead{\RL{`nwAn Alf.sl}}
\begin{document}
\begin{arabtext}



$$
\exp(x)=0
$$
\section{fkrT}


\newpage
 \tableofcontents



\end{arabtext}
\end{document}

I have this error : Something's wrong--perhaps a missing \item.

How to correct this ?

Thank you

Vrouvrou
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    Read the documentation (arabtex-doc.pdf). There are quite a number of things shouldn't put inside a arabtext environment. And consider to use something more modern -- the documentation is from 1993 and the style from 2003. – Ulrike Fischer Dec 31 '17 at 13:26
  • @UlrikeFischer how i can find it ? have you suggestion to ameliorate it – Vrouvrou Dec 31 '17 at 17:15
  • For the documentation, see http://baobab.informatik.uni-stuttgart.de/ifi/bs/research/arab_e.html The more modern packages to which Ulrike Fischer refers are arabxetex and arabluatex. arabxetex has been around longer, whereas arabluatex is still being developed, so you’ll probably want to start with arabxetex. – Thérèse Jan 30 '18 at 18:55
  • @Thérèse i don't understand what you say what i must do ? – Vrouvrou Jan 30 '18 at 18:59

1 Answers1

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Change this part: 

$$
\exp(x)=0
$$

with this:

$\exp(x)=0$

You can also use $$\exp(x)=0$$, \[ \exp(x)=0 \]instead or even the \equation environment:

\begin{equation}
\exp(x)=0
\end{equation}

but in these three cases you have to put it under the first \chapter or \section command. See the commends below for more.

chadoulis
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  • Did you test \[ and \begin{equation}? For me this leads to the same error as reported in the question. – leandriis Dec 31 '17 at 12:49
  • Sorry, I checked only the first out of the three solutions i suggest. I have Live Tex installed. I compiled it with Tex Maker. The second and the third one actually don't work. – chadoulis Dec 31 '17 at 12:50
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    This might be due to LaTeX seeming to expect text before the first section command. \[ and \begin{equation} result in display math while $ starts in line math. The two display math commands work if one enters a single letter or more text before the \section command. – leandriis Dec 31 '17 at 13:00
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    Additionally, it should be noted, that using \(and \) in LaTeX should be preferred over using $. (See: https://tex.stackexchange.com/a/513/134144) – leandriis Dec 31 '17 at 13:02
  • That seems quite reasonable... – chadoulis Dec 31 '17 at 13:03
  • Please how i can ameliorate this package? and how i can center the equation ? @theohadoulis – Vrouvrou Dec 31 '17 at 17:14
  • @theohadoulis \begin{equation} and [ gives the sames error – Vrouvrou Dec 31 '17 at 17:45