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> Haskell Core Libraries (base package) Parent Contents Index GHC.Float Portability non-portable (GHC Extensions) Stability internal Maintainer cvs-ghc@haskell.org Description The types Float and Double, and the classes Floating and RealFloat. Synopsis class (Fractional a) => Floating a where pi :: a exp :: a -> a log :: a -> a sqrt :: a -> a (**) :: a -> a -> a logBase :: a -> a -> a sin :: a -> a cos :: a -> a tan :: a -> a asin :: a -> a acos :: a -> a atan :: a -> a sinh :: a -> a cosh :: a -> a tanh :: a -> a asinh :: a -> a acosh :: a -> a atanh :: a -> a class (RealFrac a, Floating a) => RealFloat a where floatRadix :: a -> Integer floatDigits :: a -> Int floatRange :: a -> (Int, Int) decodeFloat :: a -> (Integer, Int) encodeFloat :: Integer -> Int -> a exponent :: a -> Int significand :: a -> a scaleFloat :: Int -> a -> a isNaN :: a -> Bool isInfinite :: a -> Bool isDenormalized :: a -> Bool isNegativeZero :: a -> Bool isIEEE :: a -> Bool atan2 :: a -> a -> a data Float = F# Float# data Double = D# Double# showFloat :: (RealFloat a) => a -> ShowS data FFFormat = FFExponent | FFFixed | FFGeneric formatRealFloat :: (RealFloat a) => FFFormat -> Maybe Int -> a -> String roundTo :: Int -> Int -> [Int] -> (Int, [Int]) floatToDigits :: (RealFloat a) => Integer -> a -> ([Int], Int) fromRat :: (RealFloat a) => Rational -> a fromRat' :: (RealFloat a) => Rational -> a scaleRat :: Rational -> Int -> Rational -> Rational -> Int -> Rational -> (Rational, Int) minExpt :: Int maxExpt :: Int expt :: Integer -> Int -> Integer expts :: Array Int Integer integerLogBase :: Integer -> Integer -> Int plusFloat :: Float -> Float -> Float minusFloat :: Float -> Float -> Float timesFloat :: Float -> Float -> Float divideFloat :: Float -> Float -> Float negateFloat :: Float -> Float gtFloat :: Float -> Float -> Bool geFloat :: Float -> Float -> Bool eqFloat :: Float -> Float -> Bool neFloat :: Float -> Float -> Bool ltFloat :: Float -> Float -> Bool leFloat :: Float -> Float -> Bool float2Int :: Float -> Int int2Float :: Int -> Float expFloat :: Float -> Float logFloat :: Float -> Float sqrtFloat :: Float -> Float sinFloat :: Float -> Float cosFloat :: Float -> Float tanFloat :: Float -> Float asinFloat :: Float -> Float acosFloat :: Float -> Float atanFloat :: Float -> Float sinhFloat :: Float -> Float coshFloat :: Float -> Float tanhFloat :: Float -> Float powerFloat :: Float -> Float -> Float plusDouble :: Double -> Double -> Double minusDouble :: Double -> Double -> Double timesDouble :: Double -> Double -> Double divideDouble :: Double -> Double -> Double negateDouble :: Double -> Double gtDouble :: Double -> Double -> Bool geDouble :: Double -> Double -> Bool eqDouble :: Double -> Double -> Bool neDouble :: Double -> Double -> Bool leDouble :: Double -> Double -> Bool ltDouble :: Double -> Double -> Bool double2Int :: Double -> Int int2Double :: Int -> Double double2Float :: Double -> Float float2Double :: Float -> Double expDouble :: Double -> Double logDouble :: Double -> Double sqrtDouble :: Double -> Double sinDouble :: Double -> Double cosDouble :: Double -> Double tanDouble :: Double -> Double asinDouble :: Double -> Double acosDouble :: Double -> Double atanDouble :: Double -> Double sinhDouble :: Double -> Double coshDouble :: Double -> Double tanhDouble :: Double -> Double powerDouble :: Double -> Double -> Double encodeFloat# :: Int# -> ByteArray# -> Int -> Float int_encodeFloat# :: Int# -> Int -> Float isFloatNaN :: Float -> Int isFloatInfinite :: Float -> Int isFloatDenormalized :: Float -> Int isFloatNegativeZero :: Float -> Int encodeDouble# :: Int# -> ByteArray# -> Int -> Double int_encodeDouble# :: Int# -> Int -> Double isDoubleNaN :: Double -> Int isDoubleInfinite :: Double -> Int isDoubleDenormalized :: Double -> Int isDoubleNegativeZero :: Double -> Int Documentation class (Fractional a) => Floating a where Methods pi :: a exp :: a -> a log :: a -> a sqrt :: a -> a (**) :: a -> a -> a logBase :: a -> a -> a sin :: a -> a cos :: a -> a tan :: a -> a asin :: a -> a acos :: a -> a atan :: a -> a sinh :: a -> a cosh :: a -> a tanh :: a -> a asinh :: a -> a acosh :: a -> a atanh :: a -> a Instances (RealFloat a) => Floating (Complex a) Floating Float Floating Double class (RealFrac a, Floating a) => RealFloat a where Methods floatRadix :: a -> Integer floatDigits :: a -> Int floatRange :: a -> (Int, Int) decodeFloat :: a -> (Integer, Int) encodeFloat :: Integer -> Int -> a exponent :: a -> Int significand :: a -> a scaleFloat :: Int -> a -> a isNaN :: a -> Bool isInfinite :: a -> Bool isDenormalized :: a -> Bool isNegativeZero :: a -> Bool isIEEE :: a -> Bool atan2 :: a -> a -> a Instances RealFloat Float RealFloat Double data Float Single-precision floating point numbers. Constructors F# Float# Instances IArray UArray Float (Ix ix) => Eq (UArray ix Float) (Ix ix) => Ord (UArray ix Float) (Ix ix, Show ix) => Show (UArray ix Float) MArray (STUArray s) Float (ST s) (Ix ix, Show ix) => Show (DiffUArray ix Float) IArray (IOToDiffArray IOUArray) Float MArray IOUArray Float IO Typeable Float Arbitrary Float CCallable Float CReturnable Float Eq Float Ord Float Num Float Real Float Fractional Float RealFrac Float Floating Float RealFloat Float Show Float Enum Float Read Float Storable Float Random Float data Double Double-precision floating point numbers. Constructors D# Double# Instances IArray UArray Double (Ix ix) => Eq (UArray ix Double) (Ix ix) => Ord (UArray ix Double) (Ix ix, Show ix) => Show (UArray ix Double) MArray (STUArray s) Double (ST s) (Ix ix, Show ix) => Show (DiffUArray ix Double) IArray (IOToDiffArray IOUArray) Double MArray IOUArray Double IO Typeable Double Arbitrary Double CCallable Double CReturnable Double Eq Double Ord Double Num Double Real Double Fractional Double Floating Double RealFrac Double RealFloat Double Show Double Enum Double Read Double Storable Double Random Double showFloat :: (RealFloat a) => a -> ShowS data FFFormat Constructors FFExponent FFFixed FFGeneric formatRealFloat :: (RealFloat a) => FFFormat -> Maybe Int -> a -> String roundTo :: Int -> Int -> [Int] -> (Int, [Int]) floatToDigits :: (RealFloat a) => Integer -> a -> ([Int], Int) fromRat :: (RealFloat a) => Rational -> a fromRat' :: (RealFloat a) => Rational -> a scaleRat :: Rational -> Int -> Rational -> Rational -> Int -> Rational -> (Rational, Int) minExpt :: Int maxExpt :: Int expt :: Integer -> Int -> Integer expts :: Array Int Integer integerLogBase :: Integer -> Integer -> Int plusFloat :: Float -> Float -> Float minusFloat :: Float -> Float -> Float timesFloat :: Float -> Float -> Float divideFloat :: Float -> Float -> Float negateFloat :: Float -> Float gtFloat :: Float -> Float -> Bool geFloat :: Float -> Float -> Bool eqFloat :: Float -> Float -> Bool neFloat :: Float -> Float -> Bool ltFloat :: Float -> Float -> Bool leFloat :: Float -> Float -> Bool float2Int :: Float -> Int int2Float :: Int -> Float expFloat :: Float -> Float logFloat :: Float -> Float sqrtFloat :: Float -> Float sinFloat :: Float -> Float cosFloat :: Float -> Float tanFloat :: Float -> Float asinFloat :: Float -> Float acosFloat :: Float -> Float atanFloat :: Float -> Float sinhFloat :: Float -> Float coshFloat :: Float -> Float tanhFloat :: Float -> Float powerFloat :: Float -> Float -> Float plusDouble :: Double -> Double -> Double minusDouble :: Double -> Double -> Double timesDouble :: Double -> Double -> Double divideDouble :: Double -> Double -> Double negateDouble :: Double -> Double gtDouble :: Double -> Double -> Bool geDouble :: Double -> Double -> Bool eqDouble :: Double -> Double -> Bool neDouble :: Double -> Double -> Bool leDouble :: Double -> Double -> Bool ltDouble :: Double -> Double -> Bool double2Int :: Double -> Int int2Double :: Int -> Double double2Float :: Double -> Float float2Double :: Float -> Double expDouble :: Double -> Double logDouble :: Double -> Double sqrtDouble :: Double -> Double sinDouble :: Double -> Double cosDouble :: Double -> Double tanDouble :: Double -> Double asinDouble :: Double -> Double acosDouble :: Double -> Double atanDouble :: Double -> Double sinhDouble :: Double -> Double coshDouble :: Double -> Double tanhDouble :: Double -> Double powerDouble :: Double -> Double -> Double encodeFloat# :: Int# -> ByteArray# -> Int -> Float int_encodeFloat# :: Int# -> Int -> Float isFloatNaN :: Float -> Int isFloatInfinite :: Float -> Int isFloatDenormalized :: Float -> Int isFloatNegativeZero :: Float -> Int encodeDouble# :: Int# -> ByteArray# -> Int -> Double int_encodeDouble# :: Int# -> Int -> Double isDoubleNaN :: Double -> Int isDoubleInfinite :: Double -> Int isDoubleDenormalized :: Double -> Int isDoubleNegativeZero :: Double -> Int Produced by Haddock version 0.4