polynomial approximation

Polynomial approximation is a mathematical technique used to simplify complex functions by representing them as a sum of polynomial terms, which are expressions made up of variables raised to whole number powers. This approach allows for easier calculations and analysis, particularly in fields like engineering and computer science. For example, instead of dealing with a complicated function, a polynomial might provide a close estimate that is easier to work with. By adjusting the degree of the polynomial—how many terms we include—we can improve the accuracy of our approximation.