\multiputSynopsis:
\multiput(x,y)(delta_x,delta_y){num-copies}{obj}
Copy obj a total of num-copies times, with an increment of delta_x,delta_y. The obj first appears at position (x,y), then at (x+\delta_x,y+\delta_y), and so on.
This draws a simple grid with every fifth line in bold (see also
\graphpaper).
\begin{picture}(10,10)
\linethickness{0.05mm}
\multiput(0,0)(1,0){10}{\line(0,1){10}}
\multiput(0,0)(0,1){10}{\line(1,0){10}}
\linethickness{0.5mm}
\multiput(0,0)(5,0){3}{\line(0,1){10}}
\multiput(0,0)(0,5){3}{\line(1,0){10}}
\end{picture}