Free Resources

Beautiful visual explanations of math concepts including linear algebra, calculus, and neural networks.

Free comprehensive courses from arithmetic through calculus, linear algebra, and beyond.

Thousands of short, focused videos on specific math topics from algebra through calculus.

Free, peer-reviewed textbooks including algebra, precalculus, calculus, and statistics.

Interactive problem-solving courses for math and science (freemium).

Free university-level courses from MIT including 18.01, 18.02, 18.03, 18.06, and more.

Course notes from mathematicians on various advanced topics.

Full-length lecture videos covering precalculus, calculus, and differential equations.

Calculus problem-solving videos with clear explanations and challenge problems.

Comprehensive notes on algebra, calculus, and differential equations with practice problems.

Free precalculus and college algebra textbooks with solutions.

Challenging mathematical/computer programming problems requiring more than math knowledge.

Resources for competition math and advanced problem-solving (some free content).

Problem solver that shows step-by-step solutions for various math topics.

Computational knowledge engine - great for checking work and exploring math.

Q&A community for people studying math at any level and professionals.

Q&A for professional mathematicians - great for research-level questions.

Active Reddit communities for learning math and discussing mathematics.

Community solutions to Axler's Linear Algebra Done Right.

Clear, short videos introducing abstract algebra concepts.

Full lecture series on real analysis from Harvey Mudd College.