set title 'case: m=3 b=0.7 c=1 f(y)=y A=5 ...';

# screen plot: (x,y) data are in the file sim.dat
plot 'sim.dat' title 'y(t)' with lines;

# hardcopies:
set size ratio 0.3 1.5, 1.0;  
set term postscript eps mono dashed 'Times-Roman' 28;
set output 'case.ps';
plot 'sim.dat' title 'y(t)' with lines;

# make a plot in PNG format as well:
set term png small;
set output 'case.png';
plot 'sim.dat' title 'y(t)' with lines;