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solaris:cproj.3m

cproj


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(7) for descriptions of the following attributes:

SEE ALSO

creal(3M), complex.h(3HEAD), carg(3M), cimag(3M), conj(3M), attributes(7), standards(7)


solaris/cproj.3m.txt · Last modified: 2023/07/19 08:58 by A User Not Logged in