Re: linee ed equazione

`\begin{equation}
\setlength\unitlength{0.5mm}
\begin{aligned}
w_{1}&=\mu_{1}q_{1}+\mu_{2}q_{2}\\
w_{n}&=\mu_{n+1}q_{n+1} \quad (n=2,3,\dots)
\end{aligned}
\qquad
\begin{gathered}
\begin{picture}(30,30)
\put(0,30){\line(1,0){30}}
\put(0,27){\makebox(0,0){$\scriptstyle n$}}
\put(30,27){\makebox(0,0){$\scriptstyle n+1$}}
%
\put(0,20){\line(3,-1){30}}
\put(0,0){\line(3,1){30}}
\put(-2,20){\makebox(0,0){$\scriptstyle 0$}}
\put(32,10){\makebox(0,0){$\scriptstyle 1$}}
\put(-2,0){\makebox(0,0){$\scriptstyle 2$}}
\end{picture}
\end{gathered}
\end{equation}`
Carica anche il pacchetto pict2e.

Ciao
Enrico