Problem with accentuation in the math environment

Question

Hello I'm using the complexity package to write a text where I would like to highlight some complexity classes.

However the text is being written in a Latin language which requires the use of accents in some words. When I try to make a newfunc using a word as an example, for example, "difícil" the "í" vanished.

\documentclass{article}
\usepackage[brazil]{babel}
\usepackage[T1]{fontenc}    % Support Icelandic Characters
\usepackage[utf8]{inputenc} % Support Icelandic Characters
\usepackage{type1ec}
\usepackage{graphicx}
\usepackage{amssymb}
\usepackage{booktabs}
\usepackage[table, xcdraw, dvipsnames]{xcolor}
\usepackage{tkz-graph}
\usepackage{subfig}
\usepackage{amsmath}
\usepackage{float}
\captionsetup[figure]{labelfont = {bf}, labelsep = period}
\usepackage{array}
\newcolumntype{P}[1]{>{\centering\arraybackslash}P{#1}}
\usetikzlibrary{arrows}
\usetikzlibrary{calc}
\usetikzlibrary{positioning}
\usepackage[a4paper,
  portuguese,
  bookmarks=true,
  bookmarksnumbered=true,
  linktocpage,
  colorlinks,
  citecolor=black,
  urlcolor=black,
  linkcolor=black,
  filecolor=black,
  ]{hyperref}
\usepackage[square]{natbib}
\usepackage{complexity}
\newfunc{\dificil}{difícil}
\begin{document}
    problemas $\NP\text{-}\dificil$
\end{document}

I would like to know how I make the letter "i" appear accented in the math environment.

Thanks

you should always make a small but complete example. That makes it much easier to test your issue. — Ulrike Fischer, Sep 08 '21 at 06:56
@O'Neil No, it doesn't. Try with dif\acute{i}cil and you'll see why. Please, vote for reopening. — egreg, Sep 08 '21 at 08:48
Unfortunately no, this will change the font when I try to use it. — LaddRussO, Sep 08 '21 at 11:52

score 3 · Accepted Answer · answered Sep 08 '21 at 12:18

All complexity does is to use a sans serif font.

\documentclass{article}
\usepackage{amsmath}
\usepackage{complexity}
\newcommand{\newtextfunc}[2]{%
  \newfunc{#1}{\textnormal{\sffamily#2}}%
}
\newtextfunc{\dificil}{difícil}
\newtextfunc{\NPdificil}{NP-difícil}
\begin{document}
\dificil\ and \NPdificil
$\dificil\ne\NPdificil$
\end{document}

Problem with accentuation in the math environment

1 Answers1