AlgoSim

AlgoSim is a very intuitive and advanced mathematical software for numerical analysis and visualisation, and physical simulation.

AlgoSim is not easy to use. You'll have to use the PDF guide included in the pack to get started. If you also want to take the most out of it, you'll worth be good with numbers.

Although thte interface is not specially complex, the goal of the program is complex, and that makes the program cifficult to use for a common user.

That menas it's specially focussed in a very small group of users who will know how to use it and get results from it.

If you are not into the Maths world, you'll probably get lost among many vectors and variables.