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Math Help - curvature

  1. #1
    Member
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    curvature

    Find the curvature of r(t)=<5 cos t, t , 5 sin t> at the point(5,2Pi,0)

    Is there a formula to calculate this I cannot seem to find it.
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  2. #2
    MHF Contributor Calculus26's Avatar
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    The general formula is k = |dT/dt|/|dr/dt| where T is the unit tangent

    You should get 5/26

    For a general discussion of curvature and why this formula works see my website

    Unit Tangent Vectors/Unit Normal Vectors
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