|CLOG(3)||Linux Programmer's Manual||CLOG(3)|
NAMEclog, clogf, clogl - natural logarithm of a complex number
DESCRIPTIONThe logarithm clog() is the inverse function of the exponential cexp(3). Thus, if y = clog(z), then z = cexp(y). The imaginary part of y is chosen in the interval [-pi,pi].
clog(z) = log(cabs(z)) + I * carg(z)
Note that z close to zero will cause an overflow.
VERSIONSThese functions first appeared in glibc in version 2.1.
SEE ALSOcabs(3), cexp(3), clog10(3), clog2(3), complex(7)
COLOPHONThis page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.