JoeCMath companion notes
Most of this site is built around companion pages for JoeCMath videos. Pick a topic, review the written steps, and jump back to the video when you need the example.
The blog groups the video notes by Algebra, Calculus, Linear Algebra, and Statistics so a new visitor can get to the lesson that matches what they are studying.
A JoeCMath companion guide for adding the same constant n times with summation notation.