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cprojf (3)

cprojf (3) ( Русские man: Библиотечные вызовы )

>> cprojf (3) ( Linux man: Библиотечные вызовы )

cprojf (3) ( POSIX man: Библиотечные вызовы )

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

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

The glibc implementation is broken and does something entirely different.

COLOPHON

This page is part of release 3.14 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/.

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