How to disable everything related with math?

Question

When using ArsClassica package with tcolorbox, there is an error related to amsmath even when no math is used:

Package amsmath Warning: Unable to redefine \Umathaccent \hat.


Package amsmath Warning: Unable to redefine \Umathaccent \check.


Package amsmath Warning: Unable to redefine \Umathaccent \tilde.


Package amsmath Warning: Unable to redefine \Umathaccent \acute.


Package amsmath Warning: Unable to redefine \Umathaccent \grave.


Package amsmath Warning: Unable to redefine \Umathaccent \dot.


Package amsmath Warning: Unable to redefine \Umathaccent \ddot.


Package amsmath Warning: Unable to redefine \Umathaccent \breve.


Package amsmath Warning: Unable to redefine \Umathaccent \bar.


Package amsmath Warning: Unable to redefine \Umathaccent \vec.


Package amsmath Warning: Unable to redefine math accent \mathring.

! Extended mathchar used as mathchar (4203026).
<to be read again> 
                   \relax 
l.893 \mathchardef\std@minus\mathcode`\-\relax

Minimal non-working code:

\documentclass{article}
\usepackage{savesym} %1
\usepackage{arsclassica} %Comment this out to make it compilable
\savesymbol{dddot} %1
\savesymbol{ddddot} %1

\usepackage[many]{tcolorbox}
\usepackage[noendash]{mathastext} %2

\title{Quả cầu}
\author{}
\restoresymbol{TXF}{dddot} %1
\restoresymbol{TXF}{ddddot} %1

\begin{document}
\maketitle
test
\end{document}

1. Fix for command already defined. Related with amsmath.
2. Fix for Extended mathchar used as mathchar. Also related with amsmath.

Is there a way to disable amsmath? The engine is XeLaTeX

Answer 1

Some observations:

• If there really is no math anywhere in your document, there's no point in loading the mathastext package. Likewise, I can't see the need for loading the savesym package and for excecuting the pairs of \savesymbol and \restoresymbol directives.

• Assuming your TeX distribution has been updated recently -- specifically, more recently than 2017/10/31 -- all you really need to do is be sure to load tcolorbox before arsclassica.

The MWE (minimum working example) would look like this:

\documentclass{article}
\usepackage[many]{tcolorbox}
\usepackage{arsclassica} 
\title{Quả cầu}
\author{}

\begin{document}
\maketitle
test
\end{document}

---

If your TeX distribution has not been updated recently, you should also take the following observations on board:

• You should use the report class, not the article class, with the arsclassica package. Why? Because you need to use a document class that provides the commands \chapter and \chaptermark. (The most recent version of arsclassica no longer requires a document class that provides \chapter and \chaptermark; that's why it's OK to use the article document class in the MWE shown above.)

• Specify the option flushmargin when running \documentclass. That way, this option will automatically get passed to the footmisc package (which is loaded by the arsclassica package).

• Last but definitely not least, be sure to load the fontspec package, and do specify a main font (via \setmainfont) that provides all the glyphs that occur in your input file.

A revised MWE (minimum working example) for older TeX distributions would thus be as follows:

\documentclass[flushmargin]{report}
\usepackage[many]{tcolorbox}
\usepackage{arsclassica} 
\usepackage{fontspec}     
\title{Quả cầu}
\author{}

\begin{document}
\maketitle
test
\end{document}