1 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
3 .\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
4 .\" Distributed under GPL
7 .TH CPROJ 3 2013-09-18 "" "Linux Programmer's Manual"
9 cproj, cprojf, cprojl \- project into Riemann Sphere
11 .B #include <complex.h>
13 .BI "double complex cproj(double complex " z ");"
15 .BI "float complex cprojf(float complex " z ");"
17 .BI "long double complex cprojl(long double complex " z ");"
21 These functions project a point in the plane onto the surface of a
22 Riemann Sphere, the one-point compactification of the complex plane.
28 Every complex infinite value is projected to a single infinite value,
29 namely to positive infinity on the real axis.
31 These functions first appeared in glibc in version 2.1.
33 .SS Multithreading (see pthreads(7))
39 functions are thread-safe.
43 In glibc 2.11 and earlier, the implementation does something different
46 projection onto a Riemann Sphere).
47 .\" http://sources.redhat.com/bugzilla/show_bug.cgi?id=10401
52 This page is part of release 3.79 of the Linux
55 A description of the project,
56 information about reporting bugs,
57 and the latest version of this page,
59 \%http://www.kernel.org/doc/man\-pages/.