Who needs the system's default calculator anyway?

[TheKaneB]

When I had much more free time I wrote a finite elements simulation for molecular dynamics, which explored different approaches to numerical integrations. It was an excuse to learn CUDA, OpenCL and OpenMP.
The same integrator can be used, with different equations and boundary conditions, to simulate any kind of time dependent physical system, mainly fluids but also heat exchange, materials deformation and other stuff.

In principle, the HP Prime can be used for the same task but with much smaller data set of course. Uh, I also wrote a simple rigid body simulation on the TI-89, it was really fun watching those cubes rolling and bouncing around in a realistic way