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Linear Algebra (MIT 18.06)

by Gilbert Strang · MIT OpenCourseWare

Matrix theory and linear algebra: systems of equations, elimination, vector spaces and subspaces, orthogonality and least squares, determinants, eigenvalues and positive definite matrices. Includes 35 lecture videos plus problem sets and exams with solutions, giving the fluency needed for applied mathematics, engineering and data science.

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Wolfram MathWorld

MathWorld is an online mathematics encyclopedia from Wolfram Research offering detailed, browsable articles on topics across the math spectrum, including algebra, geometry, calculus, and number theory. Each entry includes definitions, theorems, formulas, diagrams, worked examples, and links to further reading.

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Linear transformations and matrices | Essence of linear algebra, chapter 3

3Blue1Brown video explaining how matrices encode linear transformations of vector spaces, showing how basis vectors determine a transformation and how matrix multiplication corresponds to composing transformations. Part of the Essence of Linear Algebra series.

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Linear Algebra - Khan Academy

Learn linear algebra fundamentals, including matrices, vectors, and transformations, with Khan Academy's comprehensive course.

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Essence of Linear Algebra

Grasp determinants with 3Blue1Brown's "Essence of Linear Algebra" course. Visualize and understand this key linear algebra concept.

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Linear combinations, span, and basis vectors | Chapter 2, Essence of linear algebra

Chapter 2 of 3Blue1Brown's Essence of Linear Algebra series, a short animated lesson on linear combinations, span and basis vectors in 2D and 3D. Viewers learn to picture which points a set of vectors can reach and what linear dependence means geometrically.

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Vector Spaces on nLab

nLab reference article defining vector spaces as modules over a field and framing them within category theory via the category Vect_k of vector spaces and linear maps. Useful for readers wanting the categorical view of linear algebra.

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