cbrtf man page on OpenBSD

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SQRT(3)			  OpenBSD Programmer's Manual		       SQRT(3)

NAME
     cbrt, cbrtf, sqrt, sqrtf, sqrtl - cube root and square root functions

SYNOPSIS
     #include <math.h>

     double
     cbrt(double x);

     float
     cbrtf(float x);

     double
     sqrt(double x);

     float
     sqrtf(float x);

     long double
     sqrtl(long double x);

DESCRIPTION
     The cbrt() function computes the cube root of x.  The cbrtf() function is
     a single precision version of cbrt().

     The sqrt() function computes the non-negative square root of x.  The
     sqrtf() function is a single precision version of sqrt().	The sqrtl()
     function is an extended precision version of sqrt().

RETURN VALUES
     If x is negative, sqrt(x), sqrtf(x) and sqrtl(x) set the global variable
     errno to EDOM.

SEE ALSO
     math(3)

HISTORY
     The cbrt() function appeared in 4.3BSD.

OpenBSD 4.9		       December 12, 2008		   OpenBSD 4.9
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