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cprojl
Langue: en
Version: 2008-08-11 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
NAME
cproj, cprojf, cprojl - project into Riemann SphereSYNOPSIS
#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.SEE ALSO
cabs(3), complex(7)COLOPHON
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