Spiral
In general, a spiral is a curve with 
equal to a constant for all 
, where 
is the Torsion and 
is the Curvature.
References
Eppstein, D. ``Spirals.''http://www.ics.uci.edu/~eppstein/junkyard/spiral.html. Lauwerier, H. Fractals: Endlessly Repeated Geometric Figures. Princeton, NJ: Princeton University Press, pp. 54-66, 1991. Lockwood, E. H. ``Spirals.'' Ch. 22 in A Book of Curves. Cambridge, England: Cambridge University Press, pp. 172-175, 1967. Yates, R. C. ``Spirals.'' A Handbook on Curves and Their Properties. Ann Arbor, MI: J. W. Edwards, pp. 206-216, 1952.
Spirals
- Euler Measure
- Euler Number
- Euler Parameters
- Euler-Poincaré Characteristic
- Euler Polyhedral Formula
- Euler Polynomial
- Euler Polynomial Identity
- Euler Power Conjecture
- Euler Product
- Euler Pseudoprime
- Euler Quartic Conjecture
- Euler's 6n+1 Theorem
- Euler's Addition Theorem
- Euler's Circle
- Euler's Conjecture
- Euler's Criterion
- Euler's Displacement Theorem
- Euler's Distribution Theorem
- Euler's Factorization Method
- Euler's Finite Difference Transformation
- Euler's Graeco-Roman Squares Conjecture
- Euler's Homogeneous Function Theorem
- Euler's Hypergeometric Transformations
- Euler's Idoneal Number
- Euler's Machin-Like Formula