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).

   
   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 4.09 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/.

                              2016-03-15                         CLOG10(3)

---

Free and Open Source Software