Ordinary Least Squares Estimators - derivation in matrix form - part 2

Ordinary Least Squares Estimators - derivation in matrix form - part 3

Ordinary Least Squares Estimators - derivation in matrix form - part 1

The Least Squares Formula: A Derivation

How to differentiate with respect to a vector - part 2

9.2) OLS Matrix Notation

Least squares | MIT 18.02SC Multivariable Calculus, Fall 2010

The matrix formulation of econometrics - example

Deriving Least Squares Estimators - part 1

Variance of Least Squares Estimators - Matrix Form

Solving the Least Squares Problem Using Gradients

Least Squares Variance of Residuals Using Matrices and the Hat Matrix, H

Deriving the OLS Estimators in Simple Linear Regression Model - Part 1

Least Squares as an unbiased estimator - matrix formulation

Matrix Form Simple Linear Regression

Least squares I: Matrix problems

ECO375F - 1.0 - Derivation of the OLS Estimator

The Gauss-Markov Theorem proof - matrix form - part 1

Simple Linear Regression by Hand (using Matrix)

Geometric Least Squares Column Space Intuition

GLS estimators in matrix form - part 2