|| Linux Programmer's Manual
NAME cproj, cprojf, cprojl - project into Riemann Sphere
double complex cproj(double complex
float complex cprojf(float complex
long double complex cprojl(long double complex
DESCRIPTION This function projects a point in the plane onto the surface of a Riemann Sphere, the one-point compactification of the complex plane. Each finite point
z projects to
z itself. Every complex infinite value is projected to a single infinite value, namely to positive infinity on the real axis.
VERSIONS These functions first appeared in glibc in version 2.1.
CONFORMING TO C99.
NOTES In glibc 2.11 and earlier, the implementation does something different (a
stereographic projection onto a Riemann Sphere).
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