# spring_ode2_commands.txt
#
# Usage:
#  gnuplot < spring_ode2_commands.txt
#
set term png
set output 'xv_time.png'
set xlabel '<--- T --->'
set ylabel '<--- X(T), V(T) --->'
set title 'Position and Velocity versus Time'
set grid
set style data lines
plot 'spring_ode2_data.txt' using 1:2 lw 3 linecolor rgb 'blue', '' using 1:3 lw 3 linecolor rgb 'red'
set output 'xv_phase.png'
set xlabel '<--- X(T) --->'
set ylabel '<--- V(T) --->'
set title 'Position versus Velocity'
set grid
set style data lines
plot 'spring_ode2_data.txt' using 2:3 lw 3 linecolor rgb 'green'
quit