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CBRT(3)			   Linux Programmer's Manual		       CBRT(3)

NAME
       cbrt, cbrtf, cbrtl - cube root function

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():
	   _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE	>= 500 ||
	   _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED || _ISOC99_SOURCE ||
	   _POSIX_C_SOURCE >= 200112L;
	   or cc -std=c99
       cbrtf(),	cbrtl():
	   _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE	>= 600 ||
	   _ISOC99_SOURCE || _POSIX_C_SOUCE >= 200112L;
	   or cc -std=c99

DESCRIPTION
       The cbrt() function returns the (real) cube root	of x.	This  function
       cannot  fail;  every  representable real	value has a representable real
       cube root.

RETURN VALUE
       These functions return the cube root of x.

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

ERRORS
       No errors occur.

ATTRIBUTES
   Multithreading (see pthreads(7))
       The cbrt(), cbrtf(), and	cbrtl()	functions are thread-safe.

CONFORMING TO
       C99, POSIX.1-2001.

SEE ALSO
       pow(3), sqrt(3)

COLOPHON
       This  page  is  part of release 3.74 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
       http://www.kernel.org/doc/man-pages/.

GNU				  2013-09-18			       CBRT(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON

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