clog10(3) Library Functions Manual clog10(3)
NAME
clog10, clog10f, clog10l - base-10 logarithm of a complex number
LIBRARY
Math library (libm, -lm)
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);
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 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 │
└────────────────────────────────────────────┴───────────────┴─────────┘
STANDARDS
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)
Linux man-pages 6.03 2022-12-15 clog10(3)
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