Sinusoidal voltages are applied to the horizontal
and vertical deflection plates, they have the form
V = A sin(ω t + φ), where A is the amplitude,
ω is the angular frequency and φ is the initial phase.
Deflection plate is red (black) when it is
The screen is viewed directly from the front
when the box "Front" is checked. Click a point on the screen
will show the coordinates of that point.
The Lissajous figures shown elsewhere may
look different to those generated here (by specifying the same frequency
ratio and initial phases). Most probably they use a different mathematical
form of the signals, e.g., the cosine function.