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Linear algebra

Vectors and matrices power computer graphics, physics and artificial intelligence. Go from the basics to eigenvalues.

23 free sites · 20 in English.

1. Khan Academy – Linear algebra English khanacademy.org

   Vectors, matrices and transformations.

   For: Middle & high schoolCollege

2. 3Blue1Brown – Essence of Linear Algebra English 3blue1brown.com

   The best visual intuition for linear algebra.

   For: Middle & high schoolCollegeGeneral public

3. MIT OCW – 18.06 Linear Algebra (Gilbert Strang) English ocw.mit.edu

   The classic MIT course.

   For: College

4. Gilbert Strang – Linear Algebra English math.mit.edu

   Book site with videos and materials.

   For: College

5. Immersive Linear Algebra English immersivemath.com

   A book with interactive figures.

   For: College

6. Interactive Linear Algebra (Georgia Tech) English textbooks.math.gatech.edu

   Open textbook with interactive demos.

   For: College

7. Understanding Linear Algebra (Austin) English understandinglinearalgebra.org

   Open textbook with Sage cells.

   For: College

8. Linear Algebra Done Right (Axler) English linear.axler.net

   The classic, free as a PDF.

   For: CollegeAdvanced

9. A First Course in Linear Algebra (Beezer) English linear.ups.edu

   Complete open textbook.

   For: College

10. Linear Algebra (Jim Hefferon) English hefferon.net

    Free textbook with worked answers.

    For: College

11. Introduction to Applied Linear Algebra (Boyd) English web.stanford.edu

    Vectors, matrices and least squares, free from Stanford.

    For: College

12. LibreTexts – Linear algebra English math.libretexts.org

    Collection of open textbooks.

    For: College

13. Dr. Trefor Bazett (YouTube) English youtube.com

    Full linear algebra course in video.

    For: College

14. MIT OCW – 18.065 Matrix Methods in Data Analysis English ocw.mit.edu

    Linear algebra for data and AI.

    For: CollegeAdvanced

15. fast.ai – Computational Linear Algebra English github.com

    Practical course with Python.

    For: College

16. The Matrix Cookbook English math.uwaterloo.ca

    Handy reference of matrix identities.

    For: CollegeAdvanced

17. Matrix Calculator English matrixcalc.org

    Determinants, inverses and eigenvalues with steps.

    For: College

18. Desmos – Matrix calculator Multilingual desmos.com

    Simple matrix calculator.

    For: College

19. GeoGebra 3D Multilingual geogebra.org

    Visualize vectors, planes and transformations.

    For: College

20. GNU Octave Multilingual octave.org

    Free, open-source software for matrix computation.

    For: College

21. Wikibooks – Linear Algebra English en.wikibooks.org

    Free, open textbook.

    For: Middle & high schoolCollege

22. MathTheBeautiful (YouTube) English youtube.com

    Pavel Grinfeld’s linear algebra lectures.

    For: College

23. NumPy – Linear algebra English numpy.org

    Do linear algebra in Python.

    For: College