clog(3M) Mathematical Library Functions clog(3M)
NAME
clog, clogf, clogl - complex natural logarithm functions
SYNOPSIS
cc [ 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(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
cexp(3M), complex.h(3HEAD), attributes(5), standards(5)
SunOS 5.10 1 Sep 2002 clog(3M)