This page discusses systems of linear equations, including their graphical and algebraic representations in 2D and 3D. It covers Gaussian elimination, augmented matrices, homogeneous systems, and thei...This page discusses systems of linear equations, including their graphical and algebraic representations in 2D and 3D. It covers Gaussian elimination, augmented matrices, homogeneous systems, and their applications in fields like chemistry and physics. The Gauss-Seidel method for iterative solutions and round-off error management is also introduced, with exercises provided for reinforcement.