What is tail recursion optimization?

Can you explain what tail recursion optimization is?

Tail recursion optimization is a technique used by compilers to improve the performance of recursive functions by reusing stack frames.

Why is tail recursion important in programming?

It's important because it helps prevent stack overflow errors and can lead to more efficient memory usage.

Can you give me an example of a tail recursive function?

Sure! Here's a simple example in Python:

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

How does this differ from regular recursion?

In regular recursion, each function call adds a new frame to the call stack, while in tail recursion, the current frame can be reused, reducing memory usage.