Orthographic Projection
A projection from infinity which preserves neither Area nor angle.
 |  |  | (1) |
 | |  | (2) |
The inverse Formulas are
 | |  | (3) |
 | |  | (4) |
where
 | |  | (5) |
 | |  | (6) |
References
Snyder, J. P. Map Projections--A Working Manual. U. S. Geological Survey Professional Paper 1395. Washington, DC: U. S. Government Printing Office, pp. 145-153, 1987.
- Equidistant Cylindrical Projection
- Equidistributed Sequence
- Equilateral Hyperbola
- Equilateral Triangle
- Equilibrium Point
- Equilic Quadrilateral
- Equinumerous
- Equipollent
- Equipotent
- Equipotential Curve
- Equiproduct Point
- Equireciprocal Point
- Equirectangular Projection
- Equiripple
- Equitangential Curve
- Equivalence Class
- Equivalence Problem
- Equivalence Relation
- Equivalent
- Equivalent Matrix
- Eratosthenes Sieve
- Erdös-Anning Theorem
- Erdös-Kac Theorem
- Erdös-Mordell Theorem
- Erdös Number