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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON |
CBRT(3) Linux Programmer's Manual CBRT(3)
cbrt, cbrtf, cbrtl - cube root function
#include <math.h>
double cbrt(double x);
float cbrtf(float x);
long double cbrtl(long double x);
Link with -lm.
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 versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
cbrtf(), cbrtl():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
|| /* Since glibc 2.19: */ _DEFAULT_SOURCE
|| /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
These functions return the (real) cube root of x. This function
cannot fail; every representable real value has a representable real
cube root.
These functions return the cube root of x.
If x is +0, -0, positive infinity, negative infinity, or NaN, x is
returned.
No errors occur.
For an explanation of the terms used in this section, see
attributes(7).
┌─────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├─────────────────────────┼───────────────┼─────────┤
│cbrt(), cbrtf(), cbrtl() │ Thread safety │ MT-Safe │
└─────────────────────────┴───────────────┴─────────┘
C99, POSIX.1-2001, POSIX.1-2008.
pow(3), sqrt(3)
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GNU 2017-09-15 CBRT(3)
Pages that refer to this page: exp10(3) , exp10f(3) , exp10l(3) , exp2(3) , exp2f(3) , exp2l(3) , exp(3) , expf(3) , expl(3) , log10(3) , log10f(3) , log10l(3) , log2(3) , log2f(3) , log2l(3) , log(3) , logf(3) , logl(3) , pow(3) , powf(3) , powl(3) , sqrt(3) , sqrtf(3) , sqrtl(3)
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