% vim:ts=2 sw=2 et:
%
% packages.tex -- packages required by the paper kugel
%
% (c) 2019 Prof Dr Andreas Müller, Hochschule Rapperswil
%

% if your paper needs special packages, add package commands as in the
% following example
%\usepackage{packagename}
\usepackage{cases}
% \usepackage[export]{adjustbox}

\newcommand{\kugeltodo}[1]{\textcolor{red!70!black}{\texttt{[TODO: #1]}}}
\newcommand{\kugelplaceholderfig}[2]{ \begin{tikzpicture}%
    \fill[lightgray!20] (0, 0) rectangle (#1, #2);%
    \node[gray, anchor = center] at ({#1 / 2}, {#2 / 2}) {\Huge \ttfamily \bfseries TODO};
  \end{tikzpicture}}

\DeclareMathOperator{\sphlaplacian}{\nabla^2_{S}}
\DeclareMathOperator{\surflaplacian}{\nabla^2_{\partial S}}