Poinsot's Spirals
PoinsotsSpirals
Poinsot's spirals are the two polar curves with equations
r = acsch(ntheta)
(1)
r = asech(ntheta).
(2)
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References
Lawrence, J. D. A Catalog of Special Plane Curves. New York: Dover, pp. 192 and 194, 1972.Referenced on Wolfram|Alpha
Poinsot's SpiralsCite this as:
Weisstein, Eric W. "Poinsot's Spirals." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/PoinsotsSpirals.html