Stanford / Mathematics

Gain Of A Matrix In A Direction

By Stephen Boyd | Introduction to Linear Dynamical Systems Lecture 17 of 20

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Lecture Description

Gain Of A Matrix In A Direction, Singular Value Decomposition, Interpretations, Singular Value Decomposition (SVD) Applications, General Pseudo-Inverse, Pseudo-Inverse Via Regularization, Full SVD, Image Of Unit Ball Under Linear Transformation, SVD In Estimation/Inversion, Sensitivity Of Linear Equations To Data Error

Course Description

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. Control, reachability, state transfer, and least-norm inputs. Observability and least-squares state estimation.

Prerequisites: Exposure to linear algebra and matrices. You should have seen the following topics: matrices and vectors, (introductory) linear algebra; differential equations, Laplace transform, transfer functions. Exposure to topics such as control systems, circuits, signals and systems, or dynamics is not required, but can increase your appreciation.

Related Resources

Transcript   |  Symmetric matrices, quadratic forms, matrix norm, and SVD   |  SVD applications

Course Index

  1. Overview Of Linear Dynamical Systems
  2. Linear Functions (Continued)
  3. Linearization (Continued)
  4. Nullspace Of A Matrix (Continued)
  5. Orthonormal Set Of Vectors
  6. Least-Squares
  7. Least-Squares Polynomial Fitting
  8. Multi-Objective Least-Squares
  9. Least-Norm Solution
  10. Examples Of Autonomous Linear Dynamical Systems
  11. Solution Via Laplace Transform And Matrix Exponential
  12. Time Transfer Property
  13. Markov Chain (Example)
  14. Jordan Canonical Form
  15. DC Or Static Gain Matrix
  16. RC Circuit (Example)
  17. Gain Of A Matrix In A Direction
  18. Sensitivity Of Linear Equations To Data Error
  19. Reachability
  20. Continuous-Time Reachability
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