"Lissajous (Oscilloscope) Curve
'<hr/>
#hide
#rad
PlotHeight = 400
PlotWidth = 400
#show
'Equation:
x(θ) = sin(a*θ)
y(θ) = sin(b*θ)
'Coefficients:'a = ?','b = ?
#pre

'Tip: Click "<b>Calculate</b>" to see the respective plot.
#post
$Plot{x(θ)|y(θ) @ θ = 0 : 2*π}2	3