Spherical Helix
The Tangent Indicatrix of a Curve of Constant Precession is a spherical helix. The equation of aspherical helix on a Sphere with Radius 
making an Angle 
with the 
-axis is
 |  |  | (1) |
 | |  | (2) |
 | |  | (3) |
The projection on the
-plane is an Epicycloid with Radii | |  | (4) |
 | |  | (5) |
See also Helix, Loxodrome, Spherical Spiral
References
Scofield, P. D. ``Curves of Constant Precession.'' Amer. Math. Monthly 102, 531-537, 1995.
- H-Fractal
- H-Function
- Hh Function
- Higher Arithmetic
- Highest Weight Theorem
- HighLife
- Highly Abundant Number
- Highly Composite Number
- Higman-Sims Group
- Hilbert Basis Theorem
- Hilbert Curve
- Hilbert Function
- Hilbert Hotel
- Hilbert Matrix
- Hilbert Number
- Hilbert Polynomial
- Hilbert's Axioms
- Hilbert-Schmidt Norm
- Hilbert-Schmidt Theory
- Hilbert's Constants
- Hilbert's Inequality
- Hilbert's Nullstellansatz
- Hilbert Space
- Hilbert's Problems
- Hilbert's Theorem