Laurent

A Laurent series is a way mathematicians represent complex functions near a specific point. Unlike regular power series, it can include terms with negative powers, allowing it to describe functions that have singularities (points where they become infinite or undefined). Think of it as an advanced local map that captures both the regular behavior and the singular behavior of a function close to that point. This mathematical tool is useful in complex analysis for studying functions with singularities, helping to understand their properties and compute integrals around these special points.