Haskell by Example: Constants

original

All variables are immutable and constant.

s :: String
s = "constant"

main = do
    putStrLn s

    let n = 500000000
    let d = 3e20 / n

    print d
    print $ sin n

$ runhaskell constants.hs
constant
6.0e11
-0.284704073237544

back to index