MathModeling_en app for iPhone and iPad

This app is one of my personal interest project, originates from an excellent online open curriculum. I have learnt a lot from the curriculum and own great thx to that inspiring lecturer. From that curriculum i have found it is necessary to combine programming techniques and math models together, as computers greatly empower model simulation and solving. If work with visualization technique, math modeling can be both powerful and fascinating.
I will try to constantly collect interesting math models, especially those with beautiful visualization effect to build into this app. As iOS devices have limited computation power, models in this app only treat problems with very limited scale and precision, ideas behind the scene are more important. If you want to try model with real problem scale, you should run on desktop, work station or even computer clusters.