Johansson Mikael <[EMAIL PROTECTED]> writes:
> But when I try to write a program with this function:
>
> f x = x mod 7 == 0 ||
> x mod 10 == 7 ||
> x div 10 mod 10 == 7
>
> The IO doesn't seem to work
> How do I put programs like this in a IO shell.
Haskell can be confusing at first.
How about:
f :: Integer -> Bool
f x = x `mod` 7 == 0 ||
x `mod` 10 == 7 ||
x `div` 10 `mod` 10 == 7
main = do
putStrLn $ show (f 1)
Hope that helps,
Jens
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