% simple.tex — minimal numodel-plot example.
%
% Plots y = 2x on a clean tick lattice, with auto-built axis labels
% from \xlabelqty/\xlabelunit (default IEEE format: "v (m/s)").

\documentclass{article}
\usepackage{siunitx}
\usepackage{numodel-plot}

\begin{document}

\def\xmin{0}\def\xmax{10}
\def\ymin{0}\def\ymax{20}
\def\xlabelqty{t}\def\xlabelunit{\s}
\def\ylabelqty{v}\def\ylabelunit{\m\per\s}

\drawplot{
  \addplot[domain=\xmin:\xmax,thick]{2*x};
  \addlegendentry{$v = 2\,t$}
}

\end{document}