clog(3) Library Functions Manual clog(3) clog, clogf, clogl - (libm -lm) #include double complex clog(double complex z); float complex clogf(float complex z); long double complex clogl(long double complex z); z . clog() cexp(3). y = clog(z) z = cexp(y). y [-pi,pi]. : clog(z) = log(cabs(z)) + I * carg(z) z . attributes(7). +------------+------------------------------------+--------------------+ || | | +------------+------------------------------------+--------------------+ |clog(), | | MT-Safe | |clogf(), | | | |clogl() | | | +------------+------------------------------------+--------------------+ C11, POSIX.1-2008. glibc 2.1. C99 POSIX.1-2001. cabs(3), cexp(3), clog10(3), clog2(3), complex(7) 3 . . : . 6.18 8 2026 clog(3)