ruby-uebungen/Assignment_010/solution/readme.md

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# Lösung: Default Parameter
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```ruby
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def produkt(a, b, c = 1, d = 1)
a * b * c * d
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end
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puts produkt(5, 7)
puts produkt(5, 7, 8)
puts produkt(5, 7, 8, 3)
```