Lissajous figure
/ˈliːsɜːʒuː/noun
- Mathematics any of a number of characteristic looped or curved figures traced out by a point undergoing two independent simple harmonic motions at right angles with frequencies in a simple ratio【数】利萨乳图形。
词源
late 19th cent.: named after Jules A. Lissajous （1822-80）, French physicist.