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Types, Literals, and Constants along with Arithmetic and Boolean Operations

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Sebastian Steger 2025-08-20 15:01:58 +02:00
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haskell/01-expressions/README.md
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@ -4,6 +4,20 @@ The following illustrates some haskell basics. It can be reproduced using `ghci`
## Types, Literals, and Constants along with Arithmetic and Boolean Operations ## Types, Literals, and Constants along with Arithmetic and Boolean Operations
Expression | Type (:t) | Value | Comment
--- | --- | --- | --------
`2` | `Num a => a` | `2` |
`2.03` | `Fractional a => a` | `2.3` |
`'c'` | `Char` | `'c'`
`"hallo"` | `String` | `"hallo"` |
`True` | `Bool` | `True` |
`x=5` | `Num a => a` | `5` | Constant named `x`
`2 + 3` | `Num a => a` | `5` | Similar `-,*,^`
`2 / 3` | `Fractional a => a` | `0.6666666666666666` |
`1 > 2` | `Bool` | `False` | Similar `<, <=, >=, ==, /=`
`True && False` | `Bool` | `False` | Similar `\|\|,not`
`((2+3)*5 > 1) \|\| not (1 > 2)` | `Bool` | `True` | Right part is not evaluated due to lazy evaluation
## Unary Functions ## Unary Functions
## Binary Functions ## Binary Functions