I made a (free) linear algebra tool - What I use to make my videos

The video tutorial introduces a free tool, Desmos, for handling 2x2 matrices, demonstrating transformations, eigenvalues, and eigenvectors. It covers single input-output transformations, matrix manipulation, and visualizing eigenvectors and eigenvalues, including complex ones. The tutorial aims to provide a practical understanding of these concepts through interactive simulations.

How can users input more coordinates into the program, and what is the outcome of this action?

What steps can be taken if the eigenvalues are found to be undefined?