In mathematics, a

**Lissajous curve**/ˈlɪsəʒuː/, also known as**Lissajous figure**or**Bowditch curve**/ˈbaʊdɪtʃ/, is the graph of a system of parametric equationswhich 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.