Lissajous Figures
Complex geometric curves traced by combining two perpendicular simple harmonic oscillations.
Governing formula
x(t) = A sin(a t + δ), y(t) = B sin(b t)
SI unit
N/A
In depth
The shape of the curve reveals the frequency ratio $a/b$ and phase difference $Δ$ between two perpendicular signals.
Examples in the real world
Oscilloscope patterns used to determine unknown frequency and phase differences in electrical signals.