% This file is public domain. See the "Examples" chapter
% in the bib2gls user manual for a more detailed description
% of this file.

\documentclass[a4paper]{article}

\usepackage[T1]{fontenc}
\usepackage{stix}

\usepackage[record,% using bib2gls
 nostyles,% don't load default styles
 postdot,% append a dot after descriptions
 stylemods={mcols},% load glossary-mcols.sty and patch
 style=mcolalttree]{glossaries-extra}

\GlsXtrLoadResources[
  src={bigmathsymbols,mathgreek,
   mathsrelations,binaryoperators,unaryoperators},
  sort-field={category},
  identical-sort-action={description},
  field-aliases={identifier=category},
  replicate-fields={category=group},
  set-widest,
  save-locations=false,
  selection=all
]

\begin{document}
\printunsrtglossaries
\end{document}