Recursive Algorithm Analysis: fibonacci

This video discusses the Fibonacci sequence, a mathematical sequence where each element is the sum of the previous two elements. It explains how to compute the sequence using recursion, which can be inefficient due to repeated calculations. The video then presents an alternative iterative approach that accumulates the sequence in a linear manner, reducing the exponential cost of the recursive method to a linear cost. This technique is known as dynamic programming and is a valuable tool for solving complex problems.