Linear Algebra visual materials

A. Links collected from the lecture note chapters
Updated 14.2.2019 (MEP)

Ch. 1: Introduction (first glimpses on Gaussian elimination)
Intersecting lines in the plane and the Gauss-Jordan process (uudistettava)

Ch. 2: Linear systems
Visualization of three planes in 3-space (Maple worksheet)
Planes in 3-space and the Gauss-Jordan reduction (also links to Maple worksheets)
Solutions in vector form (to be done)

Ch. 3: Matrix algebra
Matrix algebra using Maple (to be done)
Visualization of Example 4.2.1 (Maple worksheet)
Visualization of Problem 4.1.2 (Maple worksheet)
Visualization of Problem 4.1.3 (Maple worksheet)
Visualization of Problem 4.2.3 (Maple worksheet)

Ch. 4: Analytic geometry
Suora vektorimuodossa (versio 1) kesken

Ch. 6: Determinants
Vector approach to determinants (pdf-document by Lehman)
Vectors and determinants, unit and signed area (JSXgraph)

Ch. 9: Linear space (JSXgraph)
Internal binary operations in R
Real scalings in R
Linear structure in R2
Meaning of the Axioms
Operations on intervals
Translated operations on a line U in the plane
Translated operations in the plane
Linear space over complex numbers - dimension? (to be done)

Ch 10. Subspaces (JSXgraph)
Tason aliavaruudet
Line U as a subspace

Ch 11. Linear independence
3D: plane in space (ggb)
Ch 12. Basis, coordinates and dimension
Ch 17. Change of basis
Linear Space and Basis (wider worksheet)

Ch 13. Subspaces associated to a matrix

Ch 14. Linear functions (JSXgraph)
Basic linear functions in the plane

Ch 15. Linear functions and subspaces
Lineaarikuvauksen toiminta

Ch 16. Matrix representation of linear functions
Linearity of functions and matrix representation (wider worksheet 1)

Ch 18. Inner product space

Ch 19. Orthogonal sets - projections
Projections 1 to be revised
Projection to a subspace (R3 to a plane)

Ch 20. Orthonormal basis and matrices

Ch 21. Orthonormal subspaces and LSQ-method
Visualisation of 3x2-matrix LSQ
PNS, yhtälöryhmät ja suorat tasossa
Tason suorat ja PNS - tulkintaongelma (teoriaa ja tehtäviä, PNS-ratkaisun geometrinen konstruointi)
Projection matrix P to be revised
Visualization of Problem 21.5.2 (Maple worksheet)
Visualization of Problem 21.6.2 (Maple worksheet)
Visualization of Problem 21.6.3 (Maple worksheet)

Ch 22. Curve fitting by LSQ
Fitting of  a straight line

Ch 23. Eigenvalues and eigenvectors
Eigenvalues and eigenvectors of 2x2-matrix (and the assciated linear function)
Object images under linear functions, determinant, eigenvectors (wider worksheet 2)

Ch 24. Diagonalization of matrices
To be done

Ch 25. Symmetric matrices and the Spectral Theorem
To be done

Ch 26. About quadratic forms
To be done