macros.tex

\newcommand{\norm}[1]{\| #1\|}
\newcommand{\VS}{\textit{\textbf{V}}}
\newcommand{\Scalars}{\textit{\textbf{S}}}

\newcommand{\bra}[1]{\langle #1 |}
\newcommand{\ket}[1]{| #1 \rangle }
\newcommand{\braket}[2]{\langle #1|#2\rangle}
\newcommand{\bbraket}[3]{ \langle #1 | #2 | #3 \rangle }

\newcommand{\Tr}{\textrm{Tr}}

\renewcommand{\Re}{\textrm{Re}}
\renewcommand{\Im}{\textrm{Im}}

% Pure math
\newcommand{\reals}{\mathbb{R}}
\newcommand{\complexes}{\mathbb{C}}

% Book formatting
\newcommand{\newword}[1]{\textbf{#1}}
\newcommand{\physicalsystemexample}{\clubsuit}

% Figures. Example usage:
% \quickfig{\columnwidth}{my_image}{This is the caption}{fig:my_fig}
\newcommand{\quickfig}[4]{
\begin{figure}
\begin{centering}
\includegraphics[width=#1]{#2}
\par\end{centering}
\caption{#3}
\label{#4}
\end{figure}
}