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Test Your Knowledge in Computers #515
Difficulty: Easy
A variable's type (or data type) is the characterization of the data that it represents.
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cbrt(3) [debian man page]

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 returned. ERRORS
No errors occur. CONFORMING TO
C99, POSIX.1-2001. SEE ALSO
pow(3), sqrt(3) COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
2010-09-20 CBRT(3)

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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 returned. ERRORS
No errors occur. CONFORMING TO
C99, POSIX.1-2001. SEE ALSO
pow(3), sqrt(3) COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
2010-09-20 CBRT(3)

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