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cbrt(3m) [ultrix man page]

sqrt(3m)																  sqrt(3m)

       cbrt, sqrt - cube root, square root

       #include <math.h>

       double cbrt(x)
       double x;

       double sqrt(x)
       double x;

       float fsqrt(float x)
       float x;

       The function returns the cube root of x.

       The and functions return the square root of x for double and float data types respectively.

   Error Due to Roundoff and Other Reasons
       The function is accurate to within 0.7 ulps.

       The function on this machine conforms to IEEE 754 and is correctly rounded in accordance with the rounding mode in force; the error is less
       than half an ulp in the default mode (round-to-nearest).  An ulp is one Unit in the Last Place carried.

       The function returns the default quiet NaN when x is negative indicating the invalid operation.

See Also

								       RISC								  sqrt(3m)

Check Out this Related Man Page

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

cbrt, cbrtf, cbrtl, sqrt, sqrtf, sqrtl -- cube root and square root functions LIBRARY
Math Library (libm, -lm) SYNOPSIS
#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); DESCRIPTION
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. RETURN VALUES
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.) SEE ALSO
fenv(3), math(3) STANDARDS
The cbrt(), cbrtf(), cbrtl(), sqrt(), sqrtf(), and sqrtl() functions conform to ISO/IEC 9899:1999 (``ISO C99''). HISTORY
The cbrt() function appeared in 4.3BSD. The sqrtl() function appeared in FreeBSD 8.0. The cbrtl() function appeared in FreeBSD 9.0. BSD
March 5, 2011 BSD
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