Why is the character & replaced by "et"?

Question

\documentclass[french,12pt,fleqn,a4paper,twoside,openright]{book}
\newcommand{\chaptertoc}[1]{\chapter*{#1}
\addcontentsline{toc}{chapter}{#1}
\markboth{{#1}}{{#1}}}
% Set the beginning of a LaTeX document
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{rotating}
\usepackage{lscape}
\usepackage{amsthm}
\usepackage{makeidx} % allows for indexgeneration
\usepackage[-20pt]{extsizes}
\usepackage{geometry}
\geometry{lmargin=3.2cm,vmargin=4.6cm, rmargin=3.2cm}

\usepackage[T1]{fontenc}
\usepackage{fmtcount}\usepackage{textcomp}
\usepackage[headsepline]{scrpage2}
\pagestyle{scrheadings}
\clearscrheadfoot
\usepackage{txfonts} \usepackage{algorithm,algorithmic}
\newcommand{\lesss}{\rotatebox[origin=c]{90}{$\land$}}
\newcommand{\less}{\ \lesss\ }
\usepackage[toc,page]{appendix}
\usepackage{multirow}
\usepackage{minitoc}
\usepackage{caption}
\hyphenation{prépos-si-tions}

\renewcommand{\&}{et}
\usepackage[super]{nth}
%\usepackage{Packages/phs_goodies}
\usepackage{graphicx}
\usepackage{slashbox}
\usepackage{amsmath}
\usepackage{epsfig}
\usepackage{epstopdf}
%\usepackage{xcolor,colortbl}
\usepackage{subfig}
\usepackage{fancyhdr}
\usepackage{multirow}
\usepackage{algorithm}
\usepackage{algorithmic}
\usepackage[french]{babel}
\addto\captionsfrench{\def\tablename{Tableau}}  % à activer pour version française
\usepackage[utf8]{inputenc}
\usepackage{enumitem}

I write this sentence in french

Barker and Cornacchia ont proposé le système \textit{B} \& \textit{C}

But it display

Barker and Cornacchia ont proposé le système B et C

i.e., the "&" is replaced by "et". Why

Welcome to TeX.SX! Please help us help you and add a minimal working example (MWE) that illustrates your problem. Reproducing the problem and finding out what the issue is will be much easier when we see compilable code, starting with \documentclass{...} and ending with \end{document}. — Phelype Oleinik, Mar 10 '18 at 15:43
\renewcommand{\&}{et} what is this doing in your document? — Johannes_B, Mar 10 '18 at 15:50
Since this is some template you found online, here is the truth: It isn't good. Better start with minimal template — Johannes_B, Mar 10 '18 at 15:51
unless you have a need to emulate documents written for latex2.09 in the 1980s don't load epsfig — David Carlisle, Mar 10 '18 at 16:11
Unrelated: epsfig\ has been obsolete for more than 20 years. It is simply replaced with graphicx. The french option of babel is already loaded with the document class (that's the right place). txfonts should be replaced with newtxtext and newtxmath, slashbox with diagbox. As to hyphenation, prépossitions are not prépositions… — Bernard, Mar 10 '18 at 16:16
you are specifying lots of packages twice. amsmath,algorithm,algorithmic — David Carlisle, Mar 10 '18 at 16:16

Phelype Oleinik · Accepted Answer · 2018-03-10T16:02:24.327

10

You are explicitly asking to LaTeX to do this in your preamble:

\renewcommand{\&}{et}

Just remove this line and \& will print &

Edit:

If you are absolutely, completely, 100% sure you want all instances of & replaced by et, except in this sentence you can put \let\oldamp\& before the \renewcommand and write:

Barker and Cornacchia ont proposé le système \textit{B} \oldamp\ \textit{C}

edited Mar 10 '18 at 16:02

answered Mar 10 '18 at 15:50

Phelype Oleinik

70,814

you are right this is the problem, i used this command for the bibliographie, because when a refrence contain & with style apacite i replaced it with "et", is there any solution to use it & in only this sentetce as & – Che Mar 10 '18 at 15:53
1

If you want to replace & by et in the bibliography you can move the \renewcommand right before the \bibliography. – Phelype Oleinik Mar 10 '18 at 15:58
i don't understand where to add the command \renewcommand{&}{et}, because when I write it juts before \bibliographystyle{apacite} \bibliography{VersionFinaleThese} it doesn't work – Che Mar 10 '18 at 16:20
2

You are correct, it is before the \bibliography{VersionFinaleThese}. When you say "bibliography" you mean the final chapter that contains the references, or are you talking about the citation in the middle of the text? Because I tested here and it does work with the references .-. – Phelype Oleinik Mar 10 '18 at 16:31
Thank you very much it worked with the command \let\oldamp& \renewcommand{&}{et} – Che Mar 10 '18 at 16:47

Why is the character & replaced by "et"?

1 Answers1

Edit: