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Linear Algebra

See the geometry behind matrices and vectors

Journey through 25 interactive demonstrations exploring vectors, transformations, determinants, and eigenvectors with stunning 2D and 3D visualizations.

See also: Machine Learning for eigenvectors and SVD applied to data, Differential Equations for matrix exponentials solving linear ODEs, and Representation Theory for groups acting on vector spaces.

  1. 01

    Vectors & Space

    Discover vectors as arrows, not just lists of numbers. Explore addition, scaling, and what it means to span a space.

    5 demos
  2. 02

    Linear Transformations

    Watch the entire coordinate grid warp and stretch. See how matrices transform all of space at once.

    4 demos
  3. 03

    Composition & Inverses

    Matrix multiplication means doing transformations one after another. Inverses undo what a matrix does.

    4 demos
  4. 04

    Determinants

    Determinants measure how space stretches or compresses. See area and volume scaling come alive.

    4 demos
  5. 05

    Eigenvectors & Eigenvalues

    Find the special directions that only stretch, never rotate. The key to understanding any linear transformation.

    4 demos
  6. 06

    Change of Basis

    Same vector, different coordinates. Learn why choosing the right basis makes everything simpler.

    4 demos

Inspired by 3Blue1Brown's "Essence of Linear Algebra" series.

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