CACOS
Section: Linux Programmer's Manual (3)
Updated: 2008-08-11
Index
Return to Main Contents
NAME
cacos, cacosf, cacosl - complex arc cosine
SYNOPSIS
#include <complex.h>
double complex cacos(double complex z);
float complex cacosf(float complex z);
long double complex cacosl(long double complex z);
Link with -lm.
DESCRIPTION
The
cacos()
function calculates the complex arc cosine of
z.
If y = cacos(z), then z = ccos(y).
The real part of
y
is chosen in the interval [0,pi].
One has:
cacos(z) = -i clog(z + csqrt(z * z - 1))
VERSIONS
These functions first appeared in glibc in version 2.1.
CONFORMING TO
C99.
SEE ALSO
ccos(3),
clog(3),
complex(7)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- VERSIONS
-
- CONFORMING TO
-
- SEE ALSO
-
This document was created by
man2html,
using the manual pages.
Time: 16:11:14 GMT, January 25, 2010