{- Copyright (C) 2011 Dr. Alistair Ward This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. -} {- | [@AUTHOR@] Dr. Alistair Ward [@DESCRIPTION@] Defines the set of /Arithmetic-geometric Mean/-type /Pi/-algorithms which have been implemented; currently just one. -} module Factory.Math.Implementations.Pi.AGM.Algorithm( -- * Types -- ** Data-types Algorithm(..) ) where import qualified Factory.Math.Implementations.Pi.AGM.BrentSalamin as Math.Implementations.Pi.AGM.BrentSalamin import qualified Factory.Math.Pi as Math.Pi import qualified Factory.Math.SquareRoot as Math.SquareRoot import qualified ToolShed.Defaultable as Defaultable -- | Defines the available algorithms. data Algorithm squareRootAlgorithm = BrentSalamin squareRootAlgorithm deriving (Eq, Read, Show) instance Defaultable.Defaultable squareRootAlgorithm => Defaultable.Defaultable (Algorithm squareRootAlgorithm) where defaultValue = BrentSalamin Defaultable.defaultValue instance Math.SquareRoot.Algorithm squareRootAlgorithm => Math.Pi.Algorithm (Algorithm squareRootAlgorithm) where openR (BrentSalamin squareRootAlgorithm) = Math.Implementations.Pi.AGM.BrentSalamin.openR squareRootAlgorithm