Awesome. I love desmos. I just used it yesterday for a Wave mathematics class I taught for a homeschool group. I also wrote a math graphing program that helps m

Awesome. I love desmos. I just used it yesterday for a Wave mathematics class I taught for a homeschool group. I also wrote a math graphing program that helps make math beautiful called [Truthy Graph](https://truthygraph.github.io/ https://truthygraph.github.io/). It came from a thought: most graphing programs only graph were both sides of the equation are exactly equal, but what would it look like to see also where they are nearly equal (in other words, the error gradient)?