Lune (Surface)
A sliver of the surface of a Sphere of Radius 
cut out by two planes through the azimuthal axis withDihedral Angle 
. The Surface Area of the lune is
which is just the area of the Sphere times
.See also Lune (Plane), Sphere
References
Beyer, W. H. CRC Standard Mathematical Tables, 28th ed. Boca Raton, FL: CRC Press, p. 130, 1987.
- Erfc
- Erfi
- Ergodic Measure
- Ergodic Theory
- Ergodic Transformation
- Erlanger Program
- Ermakoff's Test
- Error
- Error-Correcting Code
- Error Curve
- Error Function
- Error Function Distribution
- Error Propagation
- Escher's Map
- Escribed Circle
- Essential Singularity
- Estimate
- Estimator
- Eta Function
- Et-Function
- Ethiopian Multiplication
- Etruscan Venus Surface
- Eubulides Paradox
- Euclidean Algorithm
- Euclidean Construction