◄Description► ◄Example► ◄Up► ◄Contents► ◄Index► ◄Back► ──────────────────────────────────────────────────────────────────────────── Include: <math.h>, <errno.h> Syntax: double hypot( double x, double y ); long double hypotl( long double x, long double y ); Returns: the length of the hypotenuse if successful, or HUGE_VAL on overflow. errno: ERANGE See also: cabs -♦-