# clog(3) [minix man page]

```CLOG(3) 						     Linux Programmer's Manual							   CLOG(3)

NAME
clog, clogf, clogl - natural logarithm of a complex number

SYNOPSIS
#include <complex.h>

double complex clog(double complex z);
float complex clogf(float complex z);
long double complex clogl(long double complex z);

DESCRIPTION
These functions calculate the complex natural logarithm of z, with a branch cut along the negative real axis.

The  logarithm clog() is the inverse function of the exponential cexp(3).  Thus, if y = clog(z), then z = cexp(y).  The imaginary part of y
is chosen in the interval [-pi,pi].

One has:

clog(z) = log(cabs(z)) + I * carg(z)

Note that z close to zero will cause an overflow.

VERSIONS
These functions first appeared in glibc in version 2.1.

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

+-------------------------+---------------+---------+
|Interface		 | Attribute	 | Value   |
+-------------------------+---------------+---------+
|clog(), clogf(), clogl() | Thread safety | MT-Safe |
+-------------------------+---------------+---------+
CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.

cabs(3), cexp(3), clog10(3), clog2(3), complex(7)

COLOPHON
This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the

2017-09-15								   CLOG(3)```

## Check Out this Related Man Page

```CLOG(3)                                                      Linux Programmer's Manual                                                     CLOG(3)

NAME
clog, clogf, clogl - natural logarithm of a complex number

SYNOPSIS
#include <complex.h>

double complex clog(double complex z);
float complex clogf(float complex z);
long double complex clogl(long double complex z);

DESCRIPTION
These functions calculate the complex natural logarithm of z, with a branch cut along the negative real axis.

The  logarithm clog() is the inverse function of the exponential cexp(3).  Thus, if y = clog(z), then z = cexp(y).  The imaginary part of y
is chosen in the interval [-pi,pi].

One has:

clog(z) = log(cabs(z)) + I * carg(z)

Note that z close to zero will cause an overflow.

VERSIONS
These functions first appeared in glibc in version 2.1.

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

+-------------------------+---------------+---------+
|Interface                | Attribute     | Value   |
+-------------------------+---------------+---------+
|clog(), clogf(), clogl() | Thread safety | MT-Safe |
+-------------------------+---------------+---------+
CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.

cabs(3), cexp(3), clog10(3), clog2(3), complex(7)

COLOPHON
This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the

2017-09-15                                                             CLOG(3)```
Man Page

## cclogd 99% CPU ?

Hello, Can someone tell me why the deamon cclogd use 99% CPU ? I understand (doing some research on internet) that this deamon is for diagnostic. here the result of top command and sar commands: # sar 1 10 HP-UX NAWUX01 B.11.00 U 9000/800 06/29/07 09:06:55 %usr %sys %wio %idle...

## Script to Scan proclog files

i need to create a shell script, which will go into a directory , and scan the files in it for defined errors, there will be around 10 files in the directory.

## Error doing clogin into a wpar

I have this error when I'm trying to do clogin from AIX 7200-00-00-0000 into a wpar with AIX 5.2 abanksPaDesa2:/> clogin AbanksBDPA_wpar exec: A file or directory in the path name does not exist somebody can help me to fix this? I'm restoring the wpar from wpar mksysb not a mksysb from...