ccos(3) - BetterMan

ccos(3)

complex cosine function

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Synopsis

#include <complex.h>
double complex ccos(double complex 
z
);
float complex ccosf(float complex 
z
);
long double complex ccosl(long double complex 
z
);

—

NAME

ccos, ccosf, ccosl - complex cosine function

LIBRARY

Math library (libm, -lm)

SYNOPSIS

bash

#include <complex.h>

bash

double complex ccos(double complex \nz\n);\n
\nfloat complex ccosf(float complex \nz\n);\n
\nlong double complex ccosl(long double complex \nz\n);

DESCRIPTION

These functions calculate the complex cosine of z.

The complex cosine function is defined as:

bash

ccos(z) = (exp(i * z) + exp(-i * z)) / 2

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface	Attribute	Value
ccos (), ccosf (), ccosl ()	Thread safety	MT-Safe

STANDARDS

C11, POSIX.1-2008.

HISTORY

glibc 2.1. C99, POSIX.1-2001.