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   cbrtl    ( 3 )

функция кубического корня (cube root function)

Имя (Name)

cbrt, cbrtf, cbrtl - cube root function

Синопсис (Synopsis)

#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 <= 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


Описание (Description)

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

Возвращаемое значение (Return value)

These functions return the cube root of x.

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


Ошибки (Error)

No errors occur.

Атрибуты (Attributes)

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

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


Стандарты (Conforming to)

C99, POSIX.1-2001, POSIX.1-2008.

Смотри также (See also)

pow(3), sqrt(3)