[TJSomething]

I like the idea of SageMathCloud. I had a numerical methods class that I took where we used a web-based Python math environment that the professor was having his grad students build. It was pretty buggy and would go down sometimes.

Last I heard, they switched back to MATLAB. Having taught MATLAB, I wouldn't wish that on anyone. But if SageMathCloud had been around, it would have been a good option.