Let a space curve have line elements , , and along the normal, tangent, and binormal vectors respectively, then
(1)
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where
(2)
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(3)
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(4)
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Let a space curve have line elements , , and along the normal, tangent, and binormal vectors respectively, then
(1)
|
where
(2)
| |||
(3)
| |||
(4)
|
Weisstein, Eric W. "Lancret Equation." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/LancretEquation.html