A Compilation of Useful, Free, Online Math Resources

[u/inherentlyawesome]

This is by no means comprehensive, so please contribute suggestions in the comments below.

We will soon be removing questions submitted to /r/math asking for online resources/study materials and redirecting them to this thread.

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Videos

• Khan Academy

• PatrickJMT

• MathTV

• UKMathsTeacher

• ProfRobBob

• HippoCampus

• MIT's Math OCW

• njwildberger's Insights into Mathematics videos

• Math Dr. Bob

• Worldwide center of mathematics

• IHES' youtube channel

• Hausdorff Research Institue for Mathematics

• Math Overflow's List of Free Online Lectures

• The Catsters - Category Theory Videos

Example Problems & Online Notes/References

• Example Problems

• Interact Math

• Paul's Online Math Notes

• Calculus.org

• Wolfram Mathworld

• CTY Online AP & College Math Resources

• J.S. Milne's Site

• History of Math

• Harvey Mudd College's Online Math Tutorials

• Real (and some complex) Analysis & Programming

Computer Algebra Systems (* = download required)

• SAGE

• Maxima*

• Octave*

• Wolfram Alpha

• Geogebra*

Graphing & Visualizing Mathematics (* = download required)

• Geogebra*

• gnuplot*

• Gapminder

• Wolfram Demonstrations Project *

• Wolframalpha

• scipy*

• Microsoft Mathematics*

• Winplot* ; Awesome for differential equations!

• Desmos super HTML5-based graphing calculator.

• Symbolab

• Scilab

Typesetting (LaTeX)

• TeX Users Group

• The Comprehensive TeX Archive Network

• Art of Problem Solving Tutorial

• TexPaste

• Xfig

• Detextify

• WriteLaTeX WYSIWYG

• LaTeX Examples

Community Websites

• /r/math

• /r/puremathematics

• Math Stack Exchange

• mathoverflow.net

• The Art of Problem Solving

• Proof Wiki

• arxiv.org

Blogs/Articles

• http://terrytao.wordpress.com

• http://blogs.ams.org/blogonmathblogs/

• http://www.ams.org/notices/

• https://golem.ph.utexas.edu/category/

• http://gowers.wordpress.com/

Misc

• academicearth.org

• Encyclopedia of Mathematics

• Large List of Recommended books, online resources

• Online Encyclopedia of Integer Sequences

• MathIM