LaTeX macros for math

mathsettings.sty

%!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
% DO NOT MODIFY THIS FILE (UNLESS TO ADD SOMETHING)!
% Use a separate file for project-specific macros.
%!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{mathsettings}[2021/09/06 Math settings package]

\RequirePackage{amssymb}
\RequirePackage{mathtools}
\RequirePackage{physics}
\RequirePackage{array}     % For extended column definitions 
\RequirePackage{multirow}  % For merging rows
\RequirePackage{xcolor}
\RequirePackage{cases}     % Provides numcases and subnumcases environments
\RequirePackage{soul}	     % Provides \ul{} command for breaking underline
\RequirePackage{accents}
\RequirePackage{emptypage}
\RequirePackage{graphicx}
\RequirePackage{siunitx}
\RequirePackage{scalerel}  % Eg.: $V_{\scaleto{CC}{4pt}}$
\RequirePackage{centernot} % To cancel out expressions (better than cancel package)
\RequirePackage{enumitem}
\RequirePackage{tabularx}
\RequirePackage{makecell}
% \RequirePackage[none]{hyphenat}  % PLEASE IMPORT THIS IN YOUR PROJECT MAIN FILE. Not all projects will want this; hence it has been disabled.
\RequirePackage{xparse}
\RequirePackage{setspace}

\RequirePackage[colorlinks=true,
linkcolor=blue,
urlcolor=blue,
citecolor=blue,
linktoc=page,
unicode=true]{hyperref}

\newcolumntype{C}{>{$}c<{$}} % Math mode in table column, centre-aligned
\newcolumntype{L}{>{$}l<{$}} % Math mode in table column, left-aligned
\newcolumntype{R}{>{$}r<{$}} % Math mode in table column, right-aligned

\newcommand{\dint}{\int\limits}
\newcommand{\dsum}{\sum\limits}
\newcommand{\dprod}{\prod\limits}
\newcommand{\tendsto}{\ensuremath{\rightarrow}}
\newcommand{\e}[1]{\ensuremath{\mathrm{e}^{#1}}}

\newcommand{\bfnt}[1]{{\bfseries #1}}
\newcommand{\ifnt}[1]{{\itshape #1}}