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Tangent vector to a parametric curve

  1. Sep 9, 2012 #1
    This is confusing me more than it should.

    A curve in space is given by [itex]x^i(t)[/itex] and is parameterized by [itex]t[/itex].

    What is the tangent vector along the curve at a point [itex] t= t_0 [/itex] on the curve?
  2. jcsd
  3. Sep 9, 2012 #2
    [tex]\left. \frac{dx^i}{dt} \right|_{t=t_0}[/tex]
  4. Sep 9, 2012 #3
    OK. So I was thinking right! Thanks a lot :)
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