Open source math software competes in the classroom
To solve the problem, I created SageMathCloud, a web-based and collaborative way for people to use SageMath and other open source software solutions, like: LaTeX, Jupyter Notebooks, command line terminals, the full scientific Python stack, Java, Julia, Fortran and more. I based it's structure on two decades of experience I have using math software in the classroom and online at Harvard, UC San Diego, and University of Washington. It's commercial grade, hosted on Google's cloud, and backs up all user files every few minutes, recording a complete history of file editing. Large classes use it extensively today. Plus, there's no installation required. Just open your web browser and start using SageMathCloud.