проект в Riemann Sphere (project into Riemann Sphere)
Имя (Name)
cproj, cprojf, cprojl - project into Riemann Sphere
Синопсис (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.
Описание (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 z projects to z itself. Every complex
infinite value is projected to a single infinite value, namely to
positive infinity on the real axis.
Версии (Versions)
These functions first appeared in glibc in version 2.1.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│cproj(), cprojf(), cprojl() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
C99, POSIX.1-2001, POSIX.1-2008.
Примечание (Note)
In glibc 2.11 and earlier, the implementation does something
different (a stereographic projection onto a Riemann Sphere).
Смотри также (See also)
cabs(3), complex(7)
