# Interior of Set Notation

I would like to denote the interior of a set using the three letters "int". However, $\int$ clearly doesn't work as that is the integral sign. I would like it to look similar to how "min" looks when typing $\min$ in latex.

This should do it.

\documentclass{scrartcl}
\usepackage{amsmath}

\DeclareMathOperator{\interior}{int}

\begin{document}

\begin{align*}
\interior A&\\
\exp A&\\
\interior(A)&\\
\exp(A)&\\
\interior\Bigl(A\Bigr)&\\
\exp\Bigl(A\Bigr)&
\end{align*}

\end{document}


The package https://ctan.org/pkg/amsopn is part of https://ctan.org/pkg/amsmath. The manual at https://ctan.org/pkg/short-math-guide might be useful for you, for example section 3.15. It is also found on page 48 of https://ctan.org/pkg/lshort-english. A discussion on manuals is found in What are good learning resources for a LaTeX beginner?.

• Thank you, exactly what I was looking for! – Is12Prime Mar 18 at 22:03
• @Is12Prime You are welcome. – CampanIgnis Mar 18 at 22:15