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Merge pull request #84 from drudru/patch-1

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Update 009_datatypes.md
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Stephen Diehl 2016-06-27 16:02:25 -04:00 committed by GitHub
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1 changed files with 3 additions and 3 deletions
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009_datatypes.md
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@ -204,9 +204,9 @@ data T
eval :: T -> Int
eval x = case x of
Add a b -> eval a + eval b
Mul a b -> eval a + eval b
Div a b -> eval a + eval b
Sub a b -> eval a + eval b
Mul a b -> eval a * eval b
Div a b -> eval a / eval b
Sub a b -> eval a - eval b
Num a -> a
```