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On the Cartesian Coordinates of Classes of Tortuous Curves
Published online by Cambridge University Press: 20 January 2009
Extract
The following notation is here used for the quantities occurring in the discussion of tortuous curves.
Length = s; curvature = ; torsion =
; direction cosines of tangent, principal normal and binomial:—α, β, γ; l, m, n; λ, μ, ν.
Frenet's formulae are therefore,
with two corresponding sets.
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- Copyright © Edinburgh Mathematical Society 1906