product +base

product :: Num a => [a] -> a
base Prelude, base Data.List
The product function computes the product of a finite list of numbers.
product :: (Foldable t, Num a) => t a -> a
base Data.Foldable
The product function computes the product of the numbers of a structure.
Product :: a -> Product a
base Data.Monoid
newtype Product a
base Data.Monoid
Monoid under multiplication.
getProduct :: Product a -> a
base Data.Monoid