HYPOT — Euclidean distance function

HYPOT(X, Y)

HYPOT(X,Y) is the Euclidean distance function. It is equal to sqrt{X^2 + Y^2}, without undue underflow or overflow.

Parameters:

• X – The type shall be REAL.

• Y – The type and kind type parameter shall be the same as X.

Returns:

The return value has the same type and kind type parameter as X.

Standard:

Fortran 2008 and later

Class:

Elemental function

Syntax:

RESULT = HYPOT(X, Y)

Example:

program test_hypot
  real(4) :: x = 1.e0_4, y = 0.5e0_4
  x = hypot(x,y)
end program test_hypot