$\{\begin{array}{ll}x=& \mathrm{cos}(nt)\\ y=& \mathrm{sin}(mt+a)\end{array}$.

These curves occur often in the study of electronics. They form a good example of parametric curves.

This online exercise can either plot a Lissajous curve and ask you to recognize its equations among a list to choose from, or give a pair of equations and ask you to recognize the plotted Lissajous curve among a list to choose from.

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Please take note that WIMS pages are interactively generated; they are not ordinary HTML files. They must be used interactively ONLINE. It is useless for you to gather them through a robot program.

- Description: recognize a Lissajous curve according to its equations, or vice versa. This is the main site of WIMS (WWW Interactive Multipurpose Server): interactive exercises, online calculators and plotters, mathematical recreation and games
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