cproj man page on SmartOS

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cproj(3M)		Mathematical Library Functions		     cproj(3M)

NAME
       cproj, cprojf, cprojl - complex projection functions

SYNOPSIS
       c99 [ flag... ] file... -lm [ library... ]
       #include <complex.h>

       double complex cproj(double complex z);

       float complex cprojf(float complex z);

       long double complex cprojl(long double complex z);

DESCRIPTION
       These  functions	 compute  a projection of z onto the Riemann sphere: z
       projects to z, except that all complex infinities (even those with  one
       infinite	 part  and  one	 NaN part) project to positive infinity on the
       real axis. If z has an infinite part, then cproj(z) is equivalent to:

	 INFINITY + I * copysign(0.0, cimag(z))

RETURN VALUES
       These functions return the value of the	projection  onto  the  Riemann
       sphere.

ERRORS
       No errors are defined.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Interface Stability	     │Standard			   │
       ├─────────────────────────────┼─────────────────────────────┤
       │MT-Level		     │MT-Safe			   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       carg(3M),    cimag(3M),	  complex.h(3HEAD),    conj(3M),    creal(3M),
       attributes(5), standards(5)

SunOS 5.11			  12 Jul 2006			     cproj(3M)
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