Lissajous curve

== English == === Etymology === Named after French mathematician Jules Antoine Lissajous (1822–1880), who invented an apparatus that projected such figures onto a wall. === Noun === Lissajous curve (plural Lissajous curves) (mathematics) Synonym of Lissajous figure. ==== Related terms ==== Lissajous knot Lissajous orbit === See also === harmonograph