worksheet-preamble.tex

\newcounter{exer}
\newenvironment{exercise}{}{\vspace{4ex}}
\setlength{\parindent}{0in}
\setlength{\parskip}{1ex}

\newenvironment{solution}{}{}
\newif\ifxake\xaketrue
%\input{\string~/linear-algebra/laode/preamble.tex}
\usepackage{graphicx}
\input{preamble}
\usepackage{xcolor}
\renewenvironment{solution}{\color{blue}}{\color{black}}
\renewenvironment{computerExercise}{\begin{exercise}}{\end{exercise}}

\usepackage{amsmath}

\usepackage{environ}
\NewEnviron{prompt}{}
\NewEnviron{hint}{}
\NewEnviron{multipleChoice}{}
\NewEnviron{feedback}{}

\renewcommand{\ans}{\noindent\textbf{Answer: }}
\renewcommand{\soln}{\noindent\textbf{Solution: }}

\newcommand{\answer}[2][]{#2}

%\graphicspath{\string~/linear-algebra/laode}

% if you want to hide solutions, uncomment the following
%\usepackage{comment}\excludecomment{solution}

\def\isitmatlab{}
\newcommand{\matlab}{\def\isitmatlab{ (MATLAB)}}

\makeatletter
\newcommand{\exerciselabel}[2]{\textbf{\textsection #2, Exercise #1\isitmatlab.}\def\@currentlabel{#1}\def\isitmatlab{}}

\newcounter{problem}
\newcommand{\problemlabel}{\refstepcounter{problem}\section*{Problem \arabic{problem}}}
\newcommand{\matlabproblemlabel}{\refstepcounter{problem}\section*{Problem \arabic{problem} (MATLAB)}}

\renewcommand{\maketitle}{%
  \begin{center}
    \textbf{\@title} \\
    \@author \\
    \@date
  \end{center}
  }
\makeatother

%\renewenvironment{matlabEquation}{\begin{equation}\renewcommand{\label}[1]{\tag{\ref{##1}}}}{\end{equation}}

\let\oldequation\equation
\let\oldendequation\endequation
\def\equation{\begingroup\oldequation\renewcommand{\label}[1]{\tag{\ref{##1}}}}
\def\endequation{\oldendequation \endgroup}

\usepackage{zref-xr}
\zxrsetup{tozreflabel=false, toltxlabel=true, verbose}
\zexternaldocument*{linearAlgebra}

\directlua{dofile(kpse.find_file("worksheet","lua"))}
\newcommand\insertexercise[1]{\directlua{insert_exercise("#1")}}