Least‐Squares Approximations

Abstract The sections in this article are Preliminaries More Basic Concepts Basic Linear‐Algebra Concepts Least‐Squares Curve Fitting The General Linear Least‐Squares Problem Solving the Linear Least‐Squares Problem Weighted Least Squares Polynomial Fitting and Spline Interpolation Nonlinear Least Squares Sequential Least Squares Predictive Least Squares The Bootstrap Method