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Manual Reference Pages  - hypot (3)

NAME
hypot(3f) - [M_math:geometry] Euclidean distance function

CONTENTS

Synopsis
Description
Options
Result
Standard
Example

SYNOPSIS
pure function hypot(x,y) result(z) real,intent(in):: x,y real:: z

DESCRIPTION
hypot(x,y) is the Euclidean distance function. It is equal to sqrt{X**2 + Y**2}, without undue underflow or overflow.

That is, solve for SQRT(x*x+y*y) carefully to avoid overflow (will be an intrinsic in Fortran 2008).

OPTIONS
X The type shall be REAL.
Y The type and kind type parameter shall be the same as X.

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

STANDARD
[[Fortran 2008]] and later

EXAMPLE
Sample program: 

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

hypot (3) March 11, 2021
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