Gall's Stereographic Projection
A Cylindrical Projection which projects the equator onto a tangent cylinder which intersects the globeat ± 45°. The transformation equations are
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where
is the Longitude and 
the Latitude.See also Stereographic Projection
References
Dana, P. H. ``Map Projections.'' http://www.utexas.edu/depts/grg/gcraft/notes/mapproj/mapproj.html.
- Elongated Square Pyramid
- Elongated Triangular Cupola
- Elongated Triangular Dipyramid
- Elongated Triangular Gyrobicupola
- Elongated Triangular Orthobicupola
- Elongated Triangular Pyramid
- Elsasser Function
- Wilson's Primality Test
- Wilson's Theorem
- Wilson's Theorem Corollary
- Wilson's Theorem (Gauss's Generalization)
- Winding Number (Contour)
- Winding Number (Map)
- Windmill
- Window Function
- Winkler Conditions
- Winograd Transform
- Wirtinger's Inequality
- Wirtinger-Sobolev Isoperimetric Constants
- Witch of Agnesi
- Witness
- Wittenbauer's Parallelogram
- Wittenbauer's Theorem
- Witten's Equations
- Wolstenholme's Theorem