# Sample 2-d plot

# You can run this by typing at the prompt: gnuplot 2dplot.plt

unset border
unset ytics
unset key

# "samples" is the number of points at which to evaluate a
# function. "100" is actually the default.

set samples 100

set style line 1 linetype -1 linewidth 1
set style arrow 1 nohead linetype 0 linewidth 1

# We make the cross-hairs here. "ls" is short for "linestyle".
# "1" is a linestyle we defined above. We also add one unlabeled
# x tic.

set xzeroaxis ls 1
set yzeroaxis ls 1
set xtics axis ('' 1.965)

# You can find appropriate label positions by moving the cursor
# inside the plot.

set label 'c' at 0.6,-0.18
set label 'z' at 4.9,0.01
set label 'F' at 2.8,-0.08
set label 'dF' at 3,0.19

# Uncomment the following two lines to save the graph as an eps
# file.

set terminal postscript eps rounded
set output '2dplot.eps'

# "w l ls 1" is short for "with lines linestyle 1".

set arrow from 1.965,0 to 1.965,-0.136 arrowstyle 1
plot [-0.5:5] [-0.2:0.2] '2dplot.dat' w l ls 1, \
'd2dplot.dat' w l ls 1, x**2*(1 - x)  w l ls 1