Lissajous figure

noun

Lis·​sa·​jous figure

¦lēsə¦zhü-

variants or less commonly Lissajous curve

: any of an infinite variety of curves formed by combining two mutually perpendicular simple harmonic motions, commonly exhibited by the oscilloscope, and used in studying frequency, amplitude, and phase relations of harmonic variables

Word History

Etymology

after Jules A. Lissajous †1880 French physicist

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