clog(3) -- Linux man page
NAME
clog, clogf, clogl - natural logarithm of a complex number
SYNOPSIS
#include <complex.h>
double complex clog(double complexz);
float complex clogf(float complex z);
long double complex clogl(long double complexz);
DESCRIPTION
The logarithm clog is the inverse function of the exponential cexp.
Thus, if y = clog(z), then z = cexp(y).
The imaginary part of y is chosen in the interval [-I*pi,I*pi].
One has clog(z) = log(cabs(z))+I*carg(z).
Please note that z close to zero will cause an overflow.
CONFORMING TO
C99
SEE ALSO
cabs(3),
cexp(3),
clog10(3)
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