I've recently been working on a CAD program(it could be considered a paint program as well) using a 3D rendering engine visualize and projection three dimensional shapes. There's still a lot of work to be done on it, such as developing the algorithms for projecting a 3D object to an arbitrary position and cleaning up the menu, but I've managed to generate the first screenshot of the program. The tools menu still needs a bit of touching up and the screen will inevitably look rather busy, but I don't think the calculator was ever designed for this kind of stuff.
Anyway, does anyone have any suggestions for improvements?
(∂²Ψ)/(∂x²) = -(2m(V(x)-E)Ψ/( ℏ²Ψ)