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Least-Norm Solutions of Underdetermined Equations

Professor

1:15:58·2008·graduate level

This lecture delves into the methodology for finding least-norm solutions to underdetermined equations, a crucial concept in applied linear algebra. It specifically examines scenarios where the number of variables exceeds the number of independent equations.

Professor Stephen Boyd, of the Electrical Engineering department at Stanford University, lectures on the least norm solutions of undetermined equations for the course, Introduction to Linear Dynamical Systems (EE263).

Introduction to applied linear algebra and linear dynamical systems, with applications to circuits, signal processing, communications, and control systems. Topics include: Least-squares aproximations of over-determined equations and least-norm solutions of underdetermined equations. Symmetric matrices, matrix norm and singular value decomposition. Eigenvalues, left and right eigenvectors, and dynamical interpretation. Matrix exponential, stability, and asymptotic behavior. Multi-input multi-output systems, impulse and step matrices; convolution and transfer matrix descriptions.

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