Polynomial fitting

Polynomial fitting is a method used to find a smooth curve that best represents a set of data points. Imagine drawing a line or curve that closely follows the pattern of the data. Unlike straight lines (linear fitting), polynomial fitting uses curves of different degrees (like quadratic or cubic) to capture more complex relationships. This technique helps in understanding trends and making predictions based on data. Essentially, it adjusts a mathematical formula so that it fits the data points as closely as possible, providing insights into how variables relate to each other.