Definition:Stereographic Projection/Also presented as

Stereographic Projection: Also presented as

In their account of stereographic projection, some sources are specific about where the plane is located with respect to the sphere.

For example: tangent to $\Bbb S$ at the opposite end of the diameter through $N$.

However, technically it does not matter where the plane is located, as long as it does not pass through $N$ itself.

Sources

• 1981: Murray R. Spiegel: Theory and Problems of Complex Variables (SI ed.) ... (previous) ... (next): $1$: Complex Numbers: Spherical Representation of Complex Numbers. Stereographic Projection
• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): extended complex plane
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): extended complex plane
• 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): stereographic projection