Desmos is a website offering free math tools, including a graphing calculator, scientific calculator, four-function calculator, matrix calculator, geometry tool, and 3D calculator. It also provides resources for teachers and students, such as interactive lessons, test practice, and a help center. Desmos aims to help everyone learn, love, and grow with math. 


Desmos | Beautiful free math

This website, created by Paul Dawkins, offers free online and downloadable notes and tutorials for math courses taught at Lamar University. The content includes algebra, calculus I-III, differential equations, and review material for these subjects. It features cheat sheets, practice problems, and assignment problems.  There are also resources on complex numbers, common math errors, and study tips for mathematics. 
