How to write the Fibonacci Sequence?

Question

I had originally coded the program wrongly. Instead of returning the Fibonacci numbers between a range (ie. startNumber 1, endNumber 20 should = only those numbers between 1

Answer 1

How about this one? I guess it's not as fancy as the other suggestions because it demands the initial specification of the previous result to produce the expected output, but I feel is a very readable option, i.e., all it does is to provide the result and the previous result to the recursion.

#count the number of recursions
num_rec = 0

def fibonacci(num, prev, num_rec, cycles):

    num_rec = num_rec + 1

    if num == 0 and prev == 0:
        result  = 0;
        num = 1;
    else:
        result = num + prev

    print(result)

    if num_rec == cycles:
        print("done")
    else:
        fibonacci(result, num, num_rec, cycles)

#Run the fibonacci function 10 times
fibonacci(0, 0, num_rec, 10)

Here's the output:

0
1
1
2
3
5
8
13
21
34
done