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);
Note
Link with −lm.
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.
CONFORMING TO
C99
NOTES
The glibc implementation is broken and does something
entirely different.
This page is part of release 2.79 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at
http://www.kernel.org/doc/man-pages/.
Copyright 2002 Walter Harms (walter.harmsinformatik.uni-oldenburg.de)
Distributed under GPL
![[Note]](../stylesheet/note.png)