RosettaCodeData/Task/Modular-arithmetic/Haskell/modular-arithmetic.hs

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-- We use a couple of GHC extensions to make the program cooler. They let us
-- use / as an operator and 13 as a literal at the type level. (The library
-- also provides the fancy Zahlen () symbol as a synonym for Integer.)
{-# Language DataKinds #-}
{-# Language TypeOperators #-}
import Data.Modular
f :: /13 -> /13
f x = x^100 + x + 1
main :: IO ()
main = print (f 10)