1 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
2 .\" Distributed under GPL
4 .TH CPROJ 3 2008-08-11 "" "Linux Programmer's Manual"
6 cproj, cprojf, cprojl \- project into Riemann Sphere
8 .B #include <complex.h>
10 .BI "double complex cproj(double complex " z ");"
12 .BI "float complex cprojf(float complex " z ");"
14 .BI "long double complex cprojl(long double complex " z ");"
18 This function projects a point in the plane onto the surface of a
19 Riemann Sphere, the one-point compactification of the complex plane.
25 Every complex infinite value is projected to a single infinite value,
26 namely to positive infinity on the real axis.
28 These functions first appeared in glibc in version 2.1.
32 The glibc implementation is broken and does something entirely different.