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Parametrizations not really understanding?

  1. Oct 8, 2011 #1
    Hi,


    We covered parametrizations in Calc 3. Now, I don't recall actually covering this stuff in Calc 2, so I'm kind of confused. I understand that you are looking for a way to describe all points on a curve, but is that it? I'm having trouble actually understanding how to go about doing it. I'm not really understanding the basics, is what I mean.

    Can anyone clarify things for me? Links would be appreciated.

    Thanks
     
  2. jcsd
  3. Oct 8, 2011 #2

    Mark44

    Staff: Mentor

    Instead of having y as a function of x, for example, you can have both x and y as functions of some parameter, often t.

    Here's an example that is a parametrization of the right side of a parabola.
    x = t, y = t2, 0 <= t < [itex]\infty[/itex]

    Each value of t determines a point on the curve.
     
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