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Command: cacosh | Section: 3 | Source: OpenBSD | File: cacosh.3
CACOSH(3) FreeBSD Library Functions Manual CACOSH(3)
NAME
cacosh, cacoshf, cacoshl - complex inverse hyperbolic cosine
SYNOPSIS
#include <complex.h>
double complex
cacosh(double complex z);
float complex
cacoshf(float complex z);
long double complex
cacoshl(long double complex z);
DESCRIPTION
The cacosh(), cacoshf() and cacoshl() functions compute the complex
inverse hyperbolic cosine of z.
For all complex floating-point numbers z,
cacosh(z) = i acos(z).
RETURN VALUES
The cacosh(), cacoshf() and cacoshl() functions return the complex
inverse hyperbolic cosine of z with imaginary part in the interval [-Pi,
Pi], and non-negative real part.
SEE ALSO
casinh(3), catanh(3)
STANDARDS
The cacosh(), cacoshf() and cacoshl() functions conform to ISO/IEC
9899:1999 ("ISO C99").
FreeBSD 14.1-RELEASE-p8 June 5, 2013 FreeBSD 14.1-RELEASE-p8