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Here is a first example, producing a plot for
this document. The GNUPLOT input file is given below, and the output
appears as Figure 1. The input file defines the output to be
in 
, gives a file name for the output, and plots 
for
on 
. To produce the figure, I simply
\input{eg1} in a center environment in a figure
environment. In following examples, I will enclose the figure in a box
to make it look a little better.
set terminal latex
set output "eg1.tex"
plot [-3.14:3.14] sin(x)
Note that GNUPLOT has drawn in the axes, labeled the tic marks for us,
scaled the 
axis automatically, and added a key in the
upper-right-hand corner (this may be moved with the set key
command, and removed with set nokey).
This is the default line style for the driver. Because of the
limited picture capabilities of , many dots are required to
approximate drawing a solid line. This may overload the memory of many
implementations. There are other line types available that draw
dotted lines and use much less memory. The EEPIC driver draws solid
lines with much less memory usage.