Maintainer	bastiaan.heeren@ou.nl
Stability	provisional
Portability	portable (depends on ghc)
Safe Haskell	None
Language	Haskell2010

Domain.Math.Data.DecimalFraction

Description

Synopsis

Documentation

newtype DecimalFraction Source #

Data type for decimal fractions

Constructors

DF Rational

Instances

Eq DecimalFraction Source #
Instance details Defined in Domain.Math.Data.DecimalFraction Methods (==) :: DecimalFraction -> DecimalFraction -> Bool # (/=) :: DecimalFraction -> DecimalFraction -> Bool #
Fractional DecimalFraction Source #
Instance details Defined in Domain.Math.Data.DecimalFraction Methods (/) :: DecimalFraction -> DecimalFraction -> DecimalFraction # recip :: DecimalFraction -> DecimalFraction # fromRational :: Rational -> DecimalFraction #
Num DecimalFraction Source #
Instance details Defined in Domain.Math.Data.DecimalFraction Methods (+) :: DecimalFraction -> DecimalFraction -> DecimalFraction # (-) :: DecimalFraction -> DecimalFraction -> DecimalFraction # (*) :: DecimalFraction -> DecimalFraction -> DecimalFraction # negate :: DecimalFraction -> DecimalFraction # abs :: DecimalFraction -> DecimalFraction # signum :: DecimalFraction -> DecimalFraction # fromInteger :: Integer -> DecimalFraction #
Ord DecimalFraction Source #
Instance details Defined in Domain.Math.Data.DecimalFraction Methods compare :: DecimalFraction -> DecimalFraction -> Ordering # (<) :: DecimalFraction -> DecimalFraction -> Bool # (<=) :: DecimalFraction -> DecimalFraction -> Bool # (>) :: DecimalFraction -> DecimalFraction -> Bool # (>=) :: DecimalFraction -> DecimalFraction -> Bool # max :: DecimalFraction -> DecimalFraction -> DecimalFraction # min :: DecimalFraction -> DecimalFraction -> DecimalFraction #
Real DecimalFraction Source #
Instance details Defined in Domain.Math.Data.DecimalFraction Methods toRational :: DecimalFraction -> Rational #
Show DecimalFraction Source #
Instance details Defined in Domain.Math.Data.DecimalFraction Methods showsPrec :: Int -> DecimalFraction -> ShowS # show :: DecimalFraction -> String # showList :: [DecimalFraction] -> ShowS #
Arbitrary DecimalFraction Source #
Instance details Defined in Domain.Math.Data.DecimalFraction Methods arbitrary :: Gen DecimalFraction # shrink :: DecimalFraction -> [DecimalFraction] #
SafePower DecimalFraction Source #
Instance details Defined in Domain.Math.Data.DecimalFraction Methods safePower :: DecimalFraction -> DecimalFraction -> Maybe DecimalFraction Source # safeSqrt :: DecimalFraction -> Maybe DecimalFraction Source # safeRoot :: DecimalFraction -> DecimalFraction -> Maybe DecimalFraction Source #
SafeDiv DecimalFraction Source #
Instance details Defined in Domain.Math.Data.DecimalFraction Methods safeDiv :: DecimalFraction -> DecimalFraction -> Maybe DecimalFraction Source # safeRecip :: DecimalFraction -> Maybe DecimalFraction Source #

fromDouble :: Double -> DecimalFraction Source #

Approximation of a double, with a precision of 8 digits

validDivisor :: DecimalFraction -> Bool Source #

Tests whether it is safe to divide by this fraction: it is safe to divide if its numerator(!) is a product of two's and five's.

digits :: DecimalFraction -> Int Source #

number of decimal digits