x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
CPROJ(3) Linux Programmer's Manual CPROJ(3)
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);
Link with -lm.
DESCRIPTION
These functions project a point in the plane onto the surface of a Rie-
mann 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.
ATTRIBUTES
Multithreading (see pthreads(7))
The cproj(), cprojf(), and cprojl() functions are thread-safe.
CONFORMING TO
C99.
NOTES
In glibc 2.11 and earlier, the implementation does something different
(a stereographic projection onto a Riemann Sphere).
SEE ALSO
cabs(3), complex(7)
COLOPHON
This page is part of release 3.69 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
http://www.kernel.org/doc/man-pages/.
2013-09-18 CPROJ(3)
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