```
Norm(c(3, 4)) #=> 5 Pythagoras triple
Norm(c(1, 1, 1), p=2) # sqrt(3)
Norm(1:10, p = 1) # sum(1:10)
Norm(1:10, p = 0) # Inf
Norm(1:10, p = Inf) # max(1:10)
Norm(1:10, p = -Inf) # min(1:10)
```

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