\font\labtex=xminus1

\input labtex

\fig0
\lbpoint{$(1,1)$}\lbpoint{\up2pt $(x, 1/x)$}%
\tpoint{\down 2pt $(1,0)$}\tpoint{\down 2pt$(x,0)$}
\endfig

\bigskip

\fig1
\lbpoint{$\,\,(1,1)$}\lbpoint{\up2pt $(x, 1/x)$}%
\tpoint{\down 2pt $(1,0)$}\tpoint{\down 2pt$(x,0)$}
\endfig

This is a test of the amazing labtex macros!!
\centerline{
\fig0
\lbpoint{$(1,1)$}\lbpoint{\up2pt $(x, 1/x)$}%
\tpoint{\down 2pt $(1,0)$}\tpoint{\down 2pt$(x,0)$}
\endfig
}
This is the end of the test.

\bye