hypot Calculate the length of the hypotenuse of a right-angle triangle &reftitle.description; floathypot floatx floaty hypot returns the length of the hypotenuse of a right-angle triangle with sides of length x and y, or the distance of the point (x, y) from the origin. This is equivalent to sqrt(x*x + y*y). &reftitle.parameters; x Length of first side y Length of second side &reftitle.returnvalues; Calculated length of the hypotenuse