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 3.74 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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