#!/usr/local/bin/gnuplot set size square set style data lines set key at 2.5,1.5 set xlabel "x" set ylabel "y" a=1.5 b=1.0 w=1.0 omega=w*a*b/(a+b)**2 timescale=2*pi/omega print "timescale=", timescale print "timescale/4=", timescale/4 set xrange [-a:a] set yrange [-a:a] plot "0000000000.dat" u 2:3 t "t=0", \ "0000000200.dat" u 2:3 t "t=2", \ "0000000400.dat" u 2:3 t "t=4", \ "0000000600.dat" u 2:3 t "t=6", \ "0000000800.dat" u 2:3 t "t=8", \ "0000001000.dat" u 2:3 t "t=10", \ "0000001200.dat" u 2:3 t "t=12", \ "0000001400.dat" u 2:3 t "t=14", \ "0000001600.dat" u 2:3 t "t=16", \ "0000001800.dat" u 2:3 t "t=18", \ "0000002000.dat" u 2:3 t "t=20", \ "0000002200.dat" u 2:3 t "t=22", \ "0000002400.dat" u 2:3 t "t=24", \ "0000002600.dat" u 2:3 t "t=26", \ "0000002800.dat" u 2:3 t "t=28", \ "0000003000.dat" u 2:3 t "t=30", \ "0000003200.dat" u 2:3 t "t=32", \ "0000003400.dat" u 2:3 t "t=34", \ "0000003600.dat" u 2:3 t "t=36", \ "0000003800.dat" u 2:3 t "t=38", \ "0000004000.dat" u 2:3 t "t=40" pause -1