## Linux and UNIX Man Pages

Test Your Knowledge in Computers #560
Difficulty: Medium
Computers do exactly as they are told to do, except when they are an A.I.
True or False?

# cacos(3m) [sunos man page]

```cacos(3M)																 cacos(3M)

NAME
cacos, cacosf, cacosl - complex arc cosine functions

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

double complex cacos(double complex z);

float complex cacosf(float complex z);

long double complex cacosl(long double complex z);

These functions compute the complex arc cosine of z, with branch cuts outside the interval [ -1, +1 ] along the real axis.

These  functions  return the complex arc cosine value, in the range of a strip mathematically unbounded along the imaginary axis and in the
interval  [ 0, pi ] along the real axis.

No errors are defined.

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

+-----------------------------+-----------------------------+
|      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
+-----------------------------+-----------------------------+
|Interface Stability	     |Standard			   |
+-----------------------------+-----------------------------+
|MT-Level		     |MT-Safe			   |
+-----------------------------+-----------------------------+

1 Sep 2002								 cacos(3M)```

## Check Out this Related Man Page

```cacos(3M)																 cacos(3M)

NAME
cacos, cacosf, cacosl - complex arc cosine functions

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

double complex cacos(double complex z);

float complex cacosf(float complex z);

long double complex cacosl(long double complex z);

These functions compute the complex arc cosine of z, with branch cuts outside the interval [ -1, +1 ] along the real axis.

These  functions  return the complex arc cosine value, in the range of a strip mathematically unbounded along the imaginary axis and in the
interval  [ 0, pi ] along the real axis.

No errors are defined.

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

+-----------------------------+-----------------------------+
|      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
+-----------------------------+-----------------------------+
|Interface Stability	     |Standard			   |
+-----------------------------+-----------------------------+
|MT-Level		     |MT-Safe			   |
+-----------------------------+-----------------------------+