sum package:rio

sum :: (Foldable t, Num a) => t a -> a

The sum function computes the sum of the numbers of a structure.

sum :: (Vector v a, Num a) => v a -> a

O(n) Compute the sum of the elements

>>> import qualified Data.Vector as V

>>> V.sum $ V.fromList [300,20,1 :: Int]
321

>>> V.sum (V.empty :: V.Vector Int)
0

sum :: Num a => Vector a -> a

O(n) Compute the sum of the elements

>>> import qualified Data.Vector as V

>>> V.sum $ V.fromList [300,20,1 :: Int]
321

>>> V.sum (V.empty :: V.Vector Int)
0

sum :: (Storable a, Num a) => Vector a -> a

O(n) Compute the sum of the elements

>>> import qualified Data.Vector.Storable as VS

>>> VS.sum $ VS.fromList [300,20,1 :: Int]
321

>>> VS.sum (VS.empty :: VS.Vector Int)
0

sum :: (Unbox a, Num a) => Vector a -> a

O(n) Compute the sum of the elements

>>> import qualified Data.Vector.Unboxed as VU

>>> VU.sum $ VU.fromList [300,20,1 :: Int]
321

>>> VU.sum (VU.empty :: VU.Vector Int)
0

The sum of a collection of actions, generalizing concat.

>>> asum [Just "Hello", Nothing, Just "World"]
Just "Hello"

The sum of a collection of actions, generalizing biconcat.

The bisum function computes the sum of the numbers of a structure.

The sum of a collection of actions, generalizing concat. As of base 4.8.0.0, msum is just asum, specialized to MonadPlus.

Is this time zone just persisting for the summer?