CLOG(3M) Mathematical Library Functions CLOG(3M)

NAME

clog, clogf, clogl - complex natural logarithm functions

SYNOPSIS

c99 [ flag... ] file... -lm [ library... ]
#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 compute the complex natural (base e) logarithm of z,
with a branch cut along the negative real axis.

RETURN VALUES

These functions return the complex natural logarithm value, in the
range of a strip mathematically unbounded along the real axis and in
the interval [ -i , +i ] along the imaginary axis.

ERRORS

No errors are defined.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


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

SEE ALSO

complex.h(3HEAD), cexp(3M), attributes(7), standards(7)

SunOS 5.11 July 12, 2006 CLOG(3M)