Linear programming is part of a larger subject known as Operations Research which deals with methods of allocating resources in the most efficient way possible. In itself linear programming is a big subject and this book only covers a small part and serves as a brief introduction only.Linear programming problems relate to maximising or minimising resources, such as maximising the profit on a set of products or services. When first learning about linear programming you need to plot the constraints of your problem which derive from inequalities. From the plots you should then be able to maximise the objective function.In this book you are shown how you can use your fx-991ES calculator to perform linear programming calculations without having to resort to actually plotting functions yourself.