cbrt(3) — Linux manual page

cbrt(3)                 Library Functions Manual                 cbrt(3)

NAME         top

       cbrt, cbrtf, cbrtl - cube root function

LIBRARY         top

       Math library (libm, -lm)

SYNOPSIS         top

       #include <math.h>

       double cbrt(double x);
       float cbrtf(float x);
       long double cbrtl(long double x);

   Feature Test Macro Requirements for glibc (see
   feature_test_macros(7)):

       cbrt():
           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
               || _XOPEN_SOURCE >= 500
               || /* Since glibc 2.19: */ _DEFAULT_SOURCE
               || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE

       cbrtf(), cbrtl():
           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
               || /* Since glibc 2.19: */ _DEFAULT_SOURCE
               || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE

DESCRIPTION         top

       These functions return the (real) cube root of x.  This function
       cannot fail; every representable real value has a representable
       real cube root.

RETURN VALUE         top

       These functions return the cube root of x.

       If x is +0, -0, positive infinity, negative infinity, or NaN, x
       is returned.

ERRORS         top

       No errors occur.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │Interface                             │ Attribute     │ Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │cbrt(), cbrtf(), cbrtl()              │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS         top

       C11, POSIX.1-2008.

HISTORY         top

       C99, POSIX.1-2001.

SEE ALSO         top

       pow(3), sqrt(3)

Linux man-pages 6.04           2023-03-30                        cbrt(3)

Pages that refer to this page: exp10(3),  exp2(3),  exp(3),  log10(3),  log2(3),  log(3),  pow(3),  sqrt(3)

HTML rendering created 2023-06-24 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH.