Computes the complex natural logarithm.
#include <complex.h>
double complex clog (z)
double complex z;
float complex clogf (z)
float complex z;
long double complex clogl (z)
long double complex z;The clog, clogf, and clogl subroutines compute the complex natural (base e) logarithm of z, with a branch cut along the negative real axis.
| Item | Description |
|---|---|
| z | Specifies the value to be computed. |
The clog, clogf, and clogl subroutines return the complex natural logarithm value, in the range of a strip mathematically unbounded along the real axis and in the interval [-i pi, +i pi] along the imaginary axis.