List of spirals

Summary

This list of spirals includes named spirals that have been described mathematically.

Image Name First described Equation Comment
Circle - black simple.svg
circle The trivial spiral
Archimedean spiral.svg
Archimedean spiral c. 320 BC
Cornu Spiral.svg
Euler spiral also called Cornu spiral or polynomial spiral
Fermat's spiral.svg
Fermat's spiral (also parabolic spiral) 1636[1]
Hyperspiral.svg
hyperbolic spiral 1704 also reciprocal spiral
Lituus.svg
lituus 1722
Logarithmic Spiral Pylab.svg
logarithmic spiral 1638[2] approximations of this are found in nature
Fibonacci spiral.svg
Fibonacci spiral circular arcs connecting the opposite corners of squares in the Fibonacci tiling approximation of the golden spiral
Golden spiral in rectanglesflip.png
golden spiral special case of the logarithmic spiral
Spiral of Theodorus.svg
Spiral of Theodorus (also Pythagorean spiral) an polygonal spiral composed of contiguous right triangles, that approximates the Archimedean spiral
Involute of circle.png
involute 1673
Helix.svg
helix a 3-dimensional spiral
Loxodrome.png
Rhumb line (also loxodrome) type of spiral drawn on a sphere
Epi half spirals.svg
Cotes's spiral 1722
PoinsotSpiral.svg
Poinsot's spirals
Nielsen's spiral.png
Nielsen's spiral 1993[3]
A variation of Euler spiral, using sine integral and cosine integrals
Polygon spiral.png
Polygonal spiral special case approximation of logarithmic spiral
Fraser spiral.svg
Fraser's Spiral 1908 Optical illusion based on spirals
Conchospiral.svg
Conchospiral three-dimensional spiral on the surface of a cone.
Calkin-Wilf spiral.svg
Calkin–Wilf spiral
Ulam spiral howto all numbers.svg
Ulam spiral (also prime spiral) 1963
Sacks spiral.svg
Sack's spiral 1994 variant of Ulam spiral and Archimedean spiral.
Seiffert's spiral spiral curve on the surface of a sphere
Tractrix Spiral.svg
Tractrix spiral 1704[4]
Pappus spiral 1779 3D conical spiral studied by Pappus and Pascal[5]
Doppler spiral.svg
doppler spiral 2D projection of Pappus spiral[6]
Atzema spiral.svg
Atzema spiral The curve that has a catacaustic forming a circle. Approximates the Archimedean spiral.[7]
AtomicSpiral.svg
Atomic spiral 2002 This spiral has two asymptotes; one is the circle of radius 1 and the other is the line [8]
Galaxy NGC1079.jpg
Galactic spiral 2019 The differential spiral equations were developed to simulate the spiral arms of disc galaxies, have 4 solutions with three different cases:, the spiral patterns are decided by the behavior of the parameter . For , spiral-ring pattern; regular spiral; loose spiral. R is the distance of spiral starting point (0, R) to the center. The calculated x and y have to be rotated backward by () for plotting. Please check the references for the detail[9]

See also

References

  1. ^ "Fermat spiral - Encyclopedia of Mathematics". www.encyclopediaofmath.org. Retrieved 18 February 2019.
  2. ^ Weisstein, Eric W. "Logarithmic Spiral". mathworld.wolfram.com. Wolfram Research, Inc. Retrieved 18 February 2019.
  3. ^ Weisstein, Eric W. "Nielsen's Spiral". mathworld.wolfram.com. Wolfram Research, Inc. Retrieved 18 February 2019.
  4. ^ "Tractrix spiral". www.mathcurve.com. Retrieved 2019-02-23.
  5. ^ "Conical spiral of Pappus". www.mathcurve.com. Retrieved 28 February 2019.
  6. ^ "Doppler spiral". www.mathcurve.com. Retrieved 28 February 2019.
  7. ^ "Atzema spiral". www.2dcurves.com. Retrieved 11 March 2019.
  8. ^ "atom-spiral". www.2dcurves.com. Retrieved 11 March 2019.
  9. ^ Pan, Hongjun. "New spiral" (PDF). www.arpgweb.com. Retrieved 5 March 2021.