D. Pin - 9 months ago 120

Pascal Question

I was wondering if you can have more than just one base case on a recursive procedure/function in Pascal.

If so, can you please give me a **simple** example? And please explain why this is possible?

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Answer Source

The simple Fibonacci sequence has two base cases:

```
f(0) = 0
f(1) = 1
f(n) = f(n - 1) + f(n - 2)
```

And, of course, you can write it in Pascal:

```
function Fib(n: integer): integer;
begin
if n = 0 then Fib := 0
else if n = 1 then Fib := 1
else Fib := Fib(n - 1) + Fib(n - 2)
end;
```

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