You are probably a grad student in an class like Power System Economics or an undergrad in an upper level course like Power System Analysis.
You are probably learning about ED, OPF, or UC and need a tool to solve problems. Minpower is the tool for you.
Solve a problem
Get started by solving the one of the problems built into Minpower:
Or check out the tutorials:
Or check the full reference on how to Creating a Problem.