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Geometric Linear Algebra

Insights into Mathematics via YouTube

Overview

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Explore linear algebra through a comprehensive video series that emphasizes visual understanding and geometric intuition over abstract formalism. Master fundamental concepts including vector spaces, linear independence, and dimension while developing geometric insight into mathematical relationships. Learn to work with subspaces, intersections, projections, and orthogonality through concrete examples and visual demonstrations. Discover how matrices function as transformations including rotations, reflections, and projections, and understand systems of linear equations through their geometric solutions. Investigate dot products in both Euclidean and indefinite contexts with applications to Special Relativity, and explore determinants as measures of area, volume, and orientation. Apply linear algebra concepts to polynomial spaces, projective geometry with homogeneous coordinates, and the innovative Chromatic Algebra of Dihedrons—a rational 4D symmetry algebra. Study practical applications including cubic splines, change of basis transformations, Taylor coefficient vectors, and relativistic geometry. Examine advanced topics such as eigenvalues, rank and nullity of linear transformations, Gaussian elimination techniques, and connections between linear algebra and physics concepts like energy and momentum. Gain exposure to Stirling numbers, Pascal triangles, and the mathematical foundations underlying calculus and geometry through this rational arithmetic approach that avoids traditional reliance on real number assumptions.

Syllabus

Introduction to Linear Algebra | Geometric Linear Algebra 1 | NJ Wildberger
Geometry with vectors | Geometric Linear Algebra 2 | NJ Wildberger
Center of mass and barycentric coordinates | Geometric Linear Algebra 3 | NJ Wildberger
Area and volume | Geometric Linear Algebra 4 | NJ Wildberger
Change of coordinates and determinants | Geometric Linear Algebra 5 | NJ Wildberger
Applications of 2x2 matrices | Geometric Linear Algebra 6 | NJ Wildberger
More applications of 2x2 matrices | Geometric Linear Algebra 7 | NJ Wildberger
Inverting 3x3 matrices | Geometric Linear Algebra 8 | NJ Wildberger
Three dimensional affine geometry | Geometric Linear Algebra 9 | NJ Wildberger
Equations of lines and planes in 3D | Geometric Linear Algebra 10 | NJ Wildberger
Applications of 3x3 matrices | Geometric Linear Algebra 11 | NJ Wildberger
Generalized dilations and eigenvalues | Geometric Linear Algebra 12 | NJ Wildberger
Solving a system of linear equations | Geometric Linear Algebra 13 | NJ Wildberger
More row reduction with parameters | Geometric Linear Algebra 14 | NJ Wildberger
Applications of row reduction (Gaussian elimination) I | Geometric Linear Algebra 15 | NJ Wildberger
Applications of row reduction II | Geometric Linear Algebra 16 | NJ Wildberger
Rank and Nullity of a Linear Transformation | Geometric Linear Algebra 17 | NJ Wildberger
The geometry of a system of linear equations | Geometric Linear Algebra 18 | NJ Wildberger
Linear algebra with polynomials | Geometric Linear Algebra 19 | NJ Wildberger
Bases of polynomial spaces | Geometric Linear Algebra 20 | NJ Wildberger
More bases of polynomial spaces | Geometric Linear Algebra 21 | NJ Wildberger
Polynomials and sequence spaces | Geometric Linear Algebra 22 | NJ Wildberger
Stirling numbers and Pascal triangles | Geometric Linear Algebra 23 | NJ Wildberger
Cubic splines using linear algebra | Geometric Linear Alg24 | NJ Wildberger
Cubic splines using calculus | Geometric Linear Algebra 25 | NJ Wildberger
Change of basis and Taylor coefficient vectors | Geometric Linear Algebra 26 | NJ Wildberger
Geometry with linear algebra | Geometric Linear Algebra 27 | NJ Wildberger
Dot products, Pythagoras' theorem, and generalizations | Geometric Linear Algebra 28 | NJ Wildberger
Applications of the dot product to planar geometry I | Wild Linear Algebra A 29 | NJ Wildberger
Applications of the dot product to planar geometry II | Wild Linear Algebra A 30 | NJ Wildberger
Circles and spheres via dot products I | Geometric Linear Algebra A 31 | NJ Wildberger
Circles and spheres via dot products II | Geometric Linear Algebra A 32 | NJ Wildberger
The relativistic dot product | Geometric Linear Algebra B 33 | NJ Wildberger
Oriented circles and 3D relativistic geometry I | Geometric Linear Algebra B 34 | NJ Wildberger
Oriented circles and relativistic geometry II | Geometric Linear Algebra 35 | NJ Wildberger
Energy, momentum and linear algebra | Geometric Linear Algebra B 36 | NJ Wildberger
An elementary introduction to Special Relativity I | Geometric Linear Algebra B 37 | NJ Wildberger
An elementary introduction to Special Relativity II | Geometric Linear Algebra B 38 | NJ Wildberger
Length contraction, time dilation and velocity addition | Wild Linear Algebra B 39 | NJ Wildberger
Relativistic dot products and complex numbers | Geometric Linear Algebra B 40 | NJ Wildberger
Relativistic dot products and complex numbers II 40b | Geometric Linear Algebra B | NJ Wildberger
The chromatic algebra of 2x2 matrices I | Geometric Linear Algebra B 41 | NJ Wildberger
The chromatic algebra of 2x2 matrices II | Geometric Linear Algebra B 42 | NJ Wildberger

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