An optimization problem is one where you have to make the best decision (choose the best investments, minimize your company’s costs, find the class schedule with the fewest morning classes, or so on).

Excel is incredibly powerful when your data is complete, but what happens when you need to solve for unknown variables? Enter Goal Seek and the Solver add-in, two tools that let Excel do the heavy ...

In April, Walmart executives acknowledged it has an inventory management problem: the company lost $3 billion in 2013 sales due to out of stock merchandise while its inventory grew at a faster rate ...