# Polynomial Regression

> Source: https://sukruyusufkaya.com/en/glossary/polynomial-regression
> Updated: 2026-05-13T20:02:47.681Z
> Type: glossary
> Category: makine-ogrenmesi
**TLDR:** A method that preserves linear model structure while modeling curved relationships through polynomial terms of input variables.

<p>Polynomial regression is an extension of linear regression that can capture curved patterns. By adding squared, cubic, or higher-order terms of the input variables, nonlinear relationships can be represented within a linear modeling framework. Despite its simplicity, it can be a powerful intermediate solution for certain problems. However, as polynomial degree increases, the risks of overfitting and numerical instability also rise.</p>