complex mathematical problems

Got a complex mathematical problem that can't be solved easily. There are various operational research techniques that can be used to solve it. Simulation can replicate complex real life situations and can help you test out various options before finding the best solution. Got a problem that needs optimising, you could use optimisation if it's possible to code up the solution and get the best answer or you could use a heuristic algorithm to get a good solution when the problem is too complex to solve exactly. You could also use algorithms and assumptions to model reall world situations and come up with sensible answers to questions.