cproj, cprojf, cprojl - project into Riemann Sphere


   #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.


   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.


   These functions first appeared in glibc in version 2.1.


   For   an   explanation   of   the  terms  used  in  this  section,  see

   │InterfaceAttributeValue   │
   │cproj(), cprojf(), cprojl() │ Thread safety │ MT-Safe │


   C99, POSIX.1-2001, POSIX.1-2008.


   In glibc 2.11 and earlier, the implementation does something  different
   (a stereographic projection onto a Riemann Sphere).


   cabs(3), complex(7)


   This  page  is  part of release 4.09 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

                              2015-04-19                          CPROJ(3)

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