What are some examples of tail recursive functions?

What are some examples of tail recursive functions?

Tail recursive functions are functions where the recursive call is the last operation. A classic example is the factorial function.

Can you show me the code for a tail recursive factorial function?

Sure! Here's a simple implementation in Python:

def tail_recursive_factorial(n, accumulator=1):
    if n == 0:
        return accumulator
    return tail_recursive_factorial(n - 1, n * accumulator)

Are there any other examples besides factorial?

Yes! Another example is the Fibonacci sequence. Here's a tail recursive version:

def tail_recursive_fib(n, a=0, b=1):
    if n == 0:
        return a
    return tail_recursive_fib(n - 1, b, a + b)