Series Expansion

A series expansion is a way of approximating complex functions by expressing them as an infinite sum of simpler terms. Imagine breaking down a complicated curve into many small, manageable parts that add up to resemble the original shape. Each term in the series captures a specific aspect of the function’s behavior, and together, they provide a useful approximation, especially near a certain point. This technique helps in calculations and understanding functions that are otherwise difficult to work with directly, turning complicated formulas into a sum of more understandable and manageable pieces.