CLOG10(3)                 (2017-09-15)                  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
          attributes(7).  allbox; lbw30 lb lb l l l.
          Interface Attribute Value T{ clog10(), clog10f(), clog10l()
          T}   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 5.10 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/.

     Page 1                       Plan 9             (printed 5/17/22)