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\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{foam-macros}[2010/01/04 FreeFOAM Macros]

%% Nicely formatted physical units
\RequirePackage{units}

% Custom commands
\renewcommand{\vec}[1]{\boldsymbol{#1}}

% -- differential operators --
\newcommand{\de}{\textrm{d}}
\newcommand{\ddt}{\frac{\de}{\de t}}
\newcommand{\ddtp}{\frac{\partial}{\partial t}}

% -- Roman letters used in subscripts
\newcommand{\arm}{\textrm{a}}
\newcommand{\brm}{\textrm{b}}
\newcommand{\drm}{\textrm{d}}
\newcommand{\frm}{\textrm{f}}
\newcommand{\lrm}{\textrm{l}}
\newcommand{\rrm}{\textrm{r}}
\newcommand{\eff}{\textrm{eff}}

\newcommand{\Drm}{\textrm{D}}
\newcommand{\Crm}{\textrm{C}}
\newcommand{\Trm}{\textrm{T}}

% -- Some symbol for physical quantities
\newcommand{\diam}{\textrm{d}}
\newcommand{\eye}{\mathbf{I}}
\newcommand{\grav}{\mathbf{g}}
\newcommand{\Hbf}{\mathbf{H}}
\newcommand{\tke}{\kappa}
\newcommand{\tdr}{\varepsilon}
\newcommand{\stress}{\boldsymbol{\tau}}
\newcommand{\Rstress}{\mathbf{R}}
\newcommand{\Sbf}{\mathbf{S}}
\newcommand{\U}{\mathbf{U}}