cproj(3) -- Linux man page
NAME
cproj, cprojf, cprojl - project into Riemann Sphere
SYNOPSIS
#include <complex.h>
double complex cproj(double complex z);
float complex cprojf(float complex z);
long double complex cprojl(long double complex z);
DESCRIPTION
With this function you can project 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 values is projected to a single infinite value,
namely to positive infinity on the real axis.
CONFORMING TO
C99
SEE ALSO
cabs(3)
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