\SUBTRACTfunction{\SQUAREfunction}{\ONEfunction}
                            {\Ffunction}
\QUOTIENTfunction{\IDENTITYfunction}{\Ffunction}
                            {\Gfunction}

\setlength{\unitlength}{0.5cm}

\begin{Picture}(-8,-6)(8,6)
\def\xunitdivisions{2}
\def\yunitdivisions{2}
\renewcommand{\axeslabelsize}{\scriptsize}
\cartesianaxes(-7,-5)(7,5)
\Put(3,3){%
   $\boxed{\displaystyle g(t)=\frac{t}{t^ 2-1}}$}
\pictcolor{red}
\PlotFunction[10]{\Gfunction}{-7}{7}
\end{Picture}
