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Homework Help: Parameterize the circle x^2 + y^2 = r^2

  1. Jul 15, 2006 #1
    parameterize the circle x^2 + y^2 = r^2

    anybody pls help
  2. jcsd
  3. Jul 15, 2006 #2
    Think about trigonometry and consider your parameter t as the angle between your point and the horizontal line ( the positive x axis).
  4. Jul 15, 2006 #3
    Also, it will be helpful to remember that x=rcost and y=rsint.
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