# quads_commands.txt
#
# Usage:
#  gnuplot < quads_commands.txt
#
set term png
set output "quads.png"
set xlabel "<--X-->"
set ylabel "<--U(X)-->"
set title "Quadratic elements."
set grid
set timestamp
set style data lines
plot "quads_data.txt" using 1:2 lw 3 linecolor rgb "red",\
     "quads_data.txt" using 1:3 with points pt 7
quit