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FreeBSD 11.0 - man page for cbrtl (freebsd section 3)

SQRT(3) 						   BSD Library Functions Manual 						   SQRT(3)

cbrt, cbrtf, cbrtl, sqrt, sqrtf, sqrtl -- cube root and square root functions
Math Library (libm, -lm)
#include <math.h> double cbrt(double x); float cbrtf(float x); long double cbrtl(long double x); double sqrt(double x); float sqrtf(float x); long double sqrtl(long double x);
The cbrt(), cbrtf(), and cbrtl() functions compute the cube root of x. The sqrt(), sqrtf(), and sqrtl() functions compute the non-negative square root of x.
The cbrt(), cbrtf(), and cbrtl() functions return the requested cube root. The sqrt(), sqrtf(), and sqrtl() functions return the requested square root unless an error occurs. An attempt to take the sqrt() of negative x raises an invalid exception and causes an NaN to be returned (except that the square root of -0 is valid and equal to -0.)
fenv(3), math(3)
The cbrt(), cbrtf(), cbrtl(), sqrt(), sqrtf(), and sqrtl() functions conform to ISO/IEC 9899:1999 (``ISO C99'').
The cbrt() function appeared in 4.3BSD. The sqrtl() function appeared in FreeBSD 8.0. The cbrtl() function appeared in FreeBSD 9.0.
March 5, 2011 BSD
Linus Torvalds

Linus Benedict Torvalds was born on December 28, 1969 and is a Finnish–American software engineer who is the creator of Linux. Linus was also the original principal developer of the Linux kernel. The Linux kernel is the kernel for Linux OS distributions as well as other operating systems such as Android and Chrome OS. Linus also created the distributed version control system called Git.
Linus was introduced to the GNU Project in 1991 after another Swedish-speaking computer science student, Lars Wirzenius, took him to the University of Technology to listen to free software evangelist Richard Stallman's speech. Linus used Richard's GNU General Public License version 2 (GPLv2) and his initial prototypes of Linux were publicly released later that year (1991). Version 1.0 was released on March 14, 1994.
Linus was honored with the 2012 Millennium Technology Prize by the Technology Academy Finland "in recognition of his creation of a new open source operating system for computers leading to the widely used Linux kernel."
Linus is also the recipient of the 2014 IEEE Computer Society Computer Pioneer Award and the 2018 IEEE Masaru Ibuka Consumer Electronics Award.
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