Safe Haskell	Safe
Language	Haskell2010

Math.Combinat.Sign

Description

Signs

Synopsis

Documentation

Constructors

Plus
Minus

Instances

Eq Sign Source #
Methods (==) :: Sign -> Sign -> Bool # (/=) :: Sign -> Sign -> Bool #
Ord Sign Source #
Methods compare :: Sign -> Sign -> Ordering # (<) :: Sign -> Sign -> Bool # (<=) :: Sign -> Sign -> Bool # (>) :: Sign -> Sign -> Bool # (>=) :: Sign -> Sign -> Bool # max :: Sign -> Sign -> Sign # min :: Sign -> Sign -> Sign #
Read Sign Source #
Methods readsPrec :: Int -> ReadS Sign # readList :: ReadS [Sign] # readPrec :: ReadPrec Sign # readListPrec :: ReadPrec [Sign] #
Show Sign Source #
Methods showsPrec :: Int -> Sign -> ShowS # show :: Sign -> String # showList :: [Sign] -> ShowS #
Monoid Sign Source #
Methods mempty :: Sign # mappend :: Sign -> Sign -> Sign # mconcat :: [Sign] -> Sign #
Random Sign Source #
Methods randomR :: RandomGen g => (Sign, Sign) -> g -> (Sign, g) # random :: RandomGen g => g -> (Sign, g) # randomRs :: RandomGen g => (Sign, Sign) -> g -> [Sign] # randoms :: RandomGen g => g -> [Sign] # randomRIO :: (Sign, Sign) -> IO Sign # randomIO :: IO Sign #

+1 or -1

signed :: Num a => Sign -> a -> a Source #

Negate the second argument if the first is Minus

Plus if even, Minus if odd

(-1)^k

Negate the second argument if the first is odd