SQRT(3)

NAME
       sqrt - square root function

SYNOPSIS
       #include <<math.h>>

       double sqrt(double x);

DESCRIPTION
       The  sqrt()  function returns the non-negative square root
       of x.  It fails and sets errno to EDOM, if x is  negative.

ERRORS
       EDOM   x is negative.

CONFORMING TO
       SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO
       hypot(3)