26 lines
453 B
Haskell
26 lines
453 B
Haskell
square :: Num a => a -> a
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square x = x^2
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square' x = (^) x 2
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square'' x = (^2) x
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square''' = (^2)
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absolute :: (Ord a, Num a) => a -> a
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absolute x = if x >= 0 then x else -x
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absolute' x
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| x >= 0 = x
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| otherwise = -x
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main = do
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print $ square 10
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print $ square' 10
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print $ square'' 10
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print $ square''' 10
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print $ absolute 10
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print $ absolute (-10)
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print $ absolute' 10
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print $ absolute' (-10)
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