% engine=luatex

\usemodule[pre-30]

\StartSample{Results}

\startbuffer
\directlua 0 {tex.print("$\string\\sqrt{2} = ", math.sqrt(2), "$")}

\directlua 0 {tex.write("$\string\\sqrt{2} = ", math.sqrt(2), "$")}
\stopbuffer

\setups{show-usage}

\StopSample
