Problem with MathOperators

Question

When I write this MathOperator (that I invented), the output of this code is not well. How could improve it? Thank you so much

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{mathtools}
\usepackage{stix}
\DeclareMathOperator{\bigdotcup}{\bigcup!!!!!!!!!;;\cdot}
\begin{document}
\Large
\section{Introduction}
\begin{equation}
\bigdotcup_{i=1}^n
\end{equation}
\end{document}

Basically just amsmath - Mathematical symbol for disjoint set union - TeX - LaTeX Stack Exchange. Maybe see also math operators - How to make dot in the defined bigcupdot automatically change size? - TeX - LaTeX Stack Exchange if needed. — user202729, Oct 02 '22 at 14:50
@user202729 but those answers are for faking the character with ams fonts so don't so much apply here with stix fonts that have ⨃ in the font — David Carlisle, Oct 02 '22 at 14:57
What's the purpose of \Large which you always add to your examples? — egreg, Oct 02 '22 at 15:01
Well, don't. Anyway, if you do texdoc stix, you find the symbol on page 19, section 4.7 Big operators. — egreg, Oct 02 '22 at 15:04
@Puck i hope you only do it in examples here, not in real documents, having body text larger than section headings would be weird — David Carlisle, Oct 02 '22 at 15:05
Why?? I always use \Large in real documents (my articles, my books, ...). — Puck, Oct 02 '22 at 15:08
@Puck if you use \Large in that way the body text will be larger than the text of (sub)section headings, which will look very strange also you have large text but the vertical spaces around list items, math display, ... are the values designed for normal size , not increased. The whole document will look very unbalanced. — David Carlisle, Oct 04 '22 at 13:05
Ok thank you for answer. How could I make sections larger, using \Large for the text? Thanx — Puck, Oct 04 '22 at 23:41

score 1 · Accepted Answer · answered Oct 02 '22 at 14:47

1

It seems you want \bigcupdot ?

\documentclass{article}
\usepackage{mathtools}
\usepackage{stix}% or better: \usepackage{stix2}
\begin{document}
\Large
\section{Introduction}
\begin{equation}
\bigcupdot_{i=1}^n
\end{equation}
\end{document}

answered Oct 02 '22 at 14:47

David Carlisle

757,742

Problem with MathOperators

1 Answers1