Lissajous curve
In mathematics, a Lissajous curve /ˈlɪsəʒ/, also known as Lissajous figure or Bowditch curve /ˈbdɪ/, is the graph of a system of parametric equations
x=A\sin(at+\delta ),\quad y=B\sin(bt),

which describe complex harmonic motion. This family of curves was investigated by Nathaniel Bowditch in 1815, and later in more detail by Jules Antoine Lissajous in 1857.


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