Linear Algebra is a fundamental branch of mathematics that plays a crucial role in numerous fields, including engineering, physics, computer science, and data science. This book, Linear Algebra I with MATLAB, aims to provide a clear and practical introduction to the subject, integrating mathematical theory with computational applications using MATLAB.The book is structured to cover essential topics such as matrices, determinants, systems of linear equations, vector spaces, and transformations. Each chapter presents theoretical concepts with rigorous mathematical proofs, followed by computational techniques that illustrate their implementation in MATLAB. Through examples, exercises, and MATLAB code snippets, readers will gain both theoretical understanding and practical problem-solving skills.This book is contains four chapters Matrices, Determinants, System of linear equations, Spatial vectors.