sqrt man page on BSDOS

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

NAME
     cbrt, cbrtf, sqrt, sqrtf - 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);

DESCRIPTION
     The cbrt() and cbrtf() functions compute the cube root of x.

     The sqrt() and sqrtf() functions compute the non-negative square root of
     x.	 For a discussion of error reporting, see math(3).

ERRORS
     For sqrt() or sqrtf(), if x < 0 then:

     _IEEE_    The return value is NaN.
     _POSIX_   Same as _IEEE_, but errno is also set to EDOM.
     _XOPEN_   Same as _POSIX_, but errno is only set if matherr(3) returns 0.
	       The exception type is DOMAIN.
     _SVID_    Same as _XOPEN_, but the return value is 0, and a message is
	       printed to stderr if errno is set.

SEE ALSO
     math(3)

STANDARDS
     The sqrt function conforms to ANSI C X3.159-1989 (``ANSI C '').

HISTORY
     The cbrt function appeared in 4.3BSD.

BSDI BSD/OS		       February 17, 1998			     1
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