Plot y = sin(x) for -10 < x < 10 with the axes
reversed, i.e., y as the horizontal axis and x as the
vertical axis.
generate x -10,,10 100
set xlabel 'sin(x)'
set ylabel 'x'
graph sin(x) x

Plot (x(t),y(t)) for 0 < t < 20, where
x(t) = exp(-0.1*t)*cos(t) and y(t) = exp(-0.1*t)*sin(t).
generate t 0,,20 100
set xlabel 'e<^>-0.1*t<_>cos(t)'
set ylabel 'e<^>-0.1*t<_>sin(t)'
graph exp(-0.1*t)*cos(t) exp(-0.1*t)*sin(t)

Display array data as contours and density plot
Write data to a file