# Set up the 3D view and axis labels

set view 15, 50

set xlabel "X"

set ylabel "Y"

set zlabel "Z"

# Set the coordinate space boundaries

set xrange [0:6.28]

set yrange [0:1]

set zrange [-1.:1.]

# Turn on parametric mode

set parametric

set samples 1000

# Set range for u (X axis)

set urange [-6.28:6.28]

# FIXED: Locked Y to 0.5 and changed Z to sin(2*u)

splot u, 0.0, sin(u)  lw 2 title "3D sin(2x) at Y=0.0"

replot u, 0.1, sin(2*u) lw 2 title "3D sin(2x) at Y=0.1"

replot u, 0.2, sin(3*u) lw 2 title "3D sin(2x) at Y=0.2"

replot u, 0.3, sin(4*u)  lw 2 title "3D sin(2x) at Y=0.3"

replot u, 0.4, sin(5*u)  lw 2 title "3D sin(2x) at Y=0.4"

replot u, 0.5, sin(6*u) lw 2 title "3D sin(2x) at Y=0.5"