Omega notation is a mathematical concept used in computer science to describe the lower bound of a function's growth rate, indicating the best-case scenario for an algorithm's performance. It provides a way to express the minimum amount of time or space an algorithm requires, helping to categorize algorithms based on their efficiency. By establishing a lower bound, it complements other asymptotic notations like Big O and Theta, giving a complete picture of algorithm behavior in terms of efficiency and performance.
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