[…]
Ecco il codice:
`
\documentclass[10pt]{article}
\usepackage{pstricks-add}
\pagestyle{empty}
\begin{document}
\newrgbcolor{zzttqq}{0.6 0.2 0}
\psset{xunit=0.5cm,yunit=0.5cm}
\begin{pspicture*}(-8.97,-16.92)(66.35,29.05)
\psgrid[subgriddiv=0,gridlabels=0,gridcolor=lightgray](0,0)(-8.97,-16.92)(66.35,29.05)
\psset{xunit=1.0cm,yunit=1.0cm,algebraic=true,dotstyle=o,dotsize=3pt 0,linewidth=0.8pt,arrowsize=3pt 2,arrowinset=0.25}
\psaxes[labelFontSize=\scriptstyle,xAxis=true,yAxis=true,Dx=2,Dy=2,ticksize=-2pt 0,subticks=2]{->}(0,0)(-4.48,-8.46)(33.17,14.52)
\pspolygon[linestyle=none,fillstyle=solid,fillcolor=zzttqq,opacity=0.1](8.5,7)(3,3)(3,10.5)
\psline[linecolor=zzttqq](8.5,7)(3,3)
\psline[linecolor=zzttqq](3,3)(3,10.5)
\psline[linecolor=zzttqq](3,10.5)(8.5,7)
\psdots[dotstyle=*,linecolor=blue](3,3)
\psdots[dotstyle=*,linecolor=blue](3,10.5)
\psdots[dotstyle=*,linecolor=blue](8.5,7)
\end{pspicture*}
\end{document}
`Anche in questo caso la compilazione si blocca (riga 10):
`
! Missing $ inserted.
$
l.10 …icks=2]{->}(0,0)(-4.48,-8.46)(33.17,14.52)? x
`Come mai? Non credo sia problema di updating di texlive!
Compilo il codice
`\documentclass[10pt]{article}
\usepackage{pstricks-add}
\pagestyle{empty}
\begin{document}
\newrgbcolor{zzttqq}{0.6 0.2 0}
\psset{xunit=0.5cm,yunit=0.5cm}
\begin{pspicture*}(-8.97,-16.92)(66.35,29.05)
\psgrid[subgriddiv=0,gridlabels=0,gridcolor=lightgray](0,0)(-8.97,-16.92)(66.35,29.05)
\psset{xunit=1.0cm,yunit=1.0cm,algebraic=true,dotstyle=o,dotsize=3pt 0,linewidth=0.8pt,arrowsize=3pt 2,arrowinset=0.25}
\psaxes[labelFontSize=\scriptstyle,xAxis=true,yAxis=true,Dx=2,Dy=2,ticksize=-2pt 0,subticks=2]{->}(0,0)(-4.48,-8.46)(33.17,14.52)
\pspolygon[linestyle=none,fillstyle=solid,fillcolor=zzttqq,opacity=0.1](8.5,7)(3,3)(3,10.5)
\psline[linecolor=zzttqq](8.5,7)(3,3)
\psline[linecolor=zzttqq](3,3)(3,10.5)
\psline[linecolor=zzttqq](3,10.5)(8.5,7)
\psdots[dotstyle=*,linecolor=blue](3,3)
\psdots[dotstyle=*,linecolor=blue](3,10.5)
\psdots[dotstyle=*,linecolor=blue](8.5,7)
\end{pspicture*}
\end{document}
`
che a te dà errore, senza problemi (“solo” un Overfull \hbox): http://i814.photobucket.com/albums/zz66/lateximages/geogebra.png.
Uso la MiKTeX 2.7 aggiornata.
Ciao,
Antonio
Modifica
Ti è stato suggerito di aggiornare pstricks: lo hai fatto?