CLOG(3) complex math routines 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);
Link with -lm.
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 [-pi,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), complex(7)