clog10

CLOG10(3)                  Linux Programmer's Manual                 CLOG10(3)

NAME
       clog10, clog10f, clog10l - base-10 logarithm of a complex number

SYNOPSIS
       #define _GNU_SOURCE         /* See feature_test_macros(7) */
       #include <complex.h>

       double complex clog10(double complex z);
       float complex clog10f(float complex z);
       long double complex clog10l(long double complex z);

       Link with -lm.

DESCRIPTION
       The call clog10(z) is equivalent to:

           clog(z)/log(10)

       or equally:

           log10(cabs(c)) + I * carg(c) / log(10)

       The other functions perform the same task for float and long double.

       Note that z close to zero will cause an overflow.

VERSIONS
       These functions first appeared in glibc in version 2.1.

ATTRIBUTES
       For  an  explanation  of  the  terms  used  in  this  section,  see at-
       tributes(7).

       +-------------------------------+---------------+---------+
       |Interface                      | Attribute     | Value   |
       +-------------------------------+---------------+---------+
       |clog10(), clog10f(), clog10l() | Thread safety | MT-Safe |
       +-------------------------------+---------------+---------+
CONFORMING TO
       These functions are GNU extensions.  The identifiers are  reserved  for
       future use in C99 and C11.

SEE ALSO
       cabs(3), cexp(3), clog(3), clog2(3), complex(7)

COLOPHON
       This  page  is  part of release 5.05 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       https://www.kernel.org/doc/man-pages/.

                                  2017-09-15                         CLOG10(3)