Re: \textwidth

Si, ma perchè così funziona…

`
\begin{document}

\setlength{\unitlength}{1pt}
\begin{picture}(\textwidthfactor,\textwidthfactor)
\put(0,0){\line(0,1){\textwidthfactor}}
\end{picture}

\end{document}
`

e così no???

`
\begin{document}

\newlength{\unitl}
\setlength{\unitl}{0.5\textwidthfactor}

\setlength{\unitlength}{1pt}
\begin{picture}(\textwidthfactor,\textwidthfactor)
\put(0,0){\line(0,1){\textwidthfactor}}
\put(1,0){\line(0,1){\unitl}}
\end{picture}

\end{document}
`

quello sopra funzion perfettamente…