Manpage of CPROJ

CPROJ

Section: Linux Programmer's Manual (3)
Updated: 2015-04-19
Index
 

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 Riemann Sphere, the one-point compactification of the complex plane. Each finite point zprojects to zitself. 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

For an explanation of the terms used in this section, see attributes(7).
InterfaceAttributeValue
cproj(), cprojf(), cprojl() Thread safetyMT-Safe
 

CONFORMING TO

C99, POSIX.1-2001, POSIX.1-2008.  

NOTES

In glibc 2.11 and earlier, the implementation does something different (a stereographicprojection onto a Riemann Sphere).  

SEE ALSO

cabs(3), complex(7)


 

Index

NAME
SYNOPSIS
DESCRIPTION
VERSIONS
ATTRIBUTES
CONFORMING TO
NOTES
SEE ALSO

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Time: 22:27:54 GMT, June 20, 2016