A Python Guide to the Fibonacci Sequence
With stacks, you’ll effectively see how each call in a recursive function is handled. The way each call is pushed onto the stack and popped off is exactly how the program is run, and it’ll clearly demonstrate how calculating large numbers will take a long time, if not optimized.
Illustrating Visualization Using a Call Stack
In a call stack, whenever a function call returns a result, a stack frame representing the function call is popped off the stack. Whenever you call a function, you add a new stack frame to the top of the stack.
Walking Through the Call Stack
The steps are outlined by the blue labels below each call stack. You will see what is happening