Paste: squareRoot

Author: Crest
Mode: haskell
Date: Sun, 9 Nov 2008 16:32:37
Plain Text | 
-- Approximate the square root of a Double $x to at least the accuracy of $epsilon.
squareRoot :: Double -> Double -> Double
squareRoot x eps = loop x where
  loop :: Double -> Double
  loop y | abs( (y * y) - x ) <= eps = y
         | otherwise                 = loop (0.5 * (y + (x / y)))

New Annotation

Summary:
Author:
Mode:
Body: