ParametricPlot
 Usage
• ParametricPlot[{ ,  }, {u,  ,  }] produces a parametric plot of a curve with  and  coordinates  and  generated as a function of u.
• ParametricPlot[{{ ,  }, { ,  }, ... }, {u,  ,  }] plots several parametric curves.
Notes
• ParametricPlot evaluates its arguments in a non-standard way (see Section A.4.2). You should use Evaluate to evaluate the function to be plotted if this can safely be done before specific numerical values are supplied. • The options that can be given for ParametricPlot are the same as for Plot. • ParametricPlot has the default option setting Axes -> True. • ParametricPlot returns a Graphics object. • New in Version 1.
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