The main activity has buttons when we run the application.It has five options calculator,theory,exercise,quiz,glossary.While we click this buttons we see informations about linear programming.It will help improve your knowledge and practice your skills.Our first button is calculator. Simplex calculator will solve simplex methods step by step.It clearly and easily shows the answers. It is very convenient for users.When you click this calculator will work with internet. We can use in russian and english.If you don't know english you can use in russian. When we solve some examples we can use this calculator and check our solutions.

There are linear programming,simplex method,dual and exercises in theory button. This button has more information with definitions, formulas and examples.Theories help improve your knowledge and give information clearly.

Next button is exercise. You can solve exercises yourself after reading theories and seeing some example. You can calculate simplex methods in calculator when you solve simplex method.In these buttons has examples for dual and simplex methods.

In the quiz we will only ask what we described in the linear programing, simplex method, duality, glossary and exercises. The quiz was divided into 2 parts: 1) Easy quiz, 2) Hard quiz. You can choose one of them and check your results.
In easy quiz has 35 questions. You must choose answer during 30 seconds. If you do not have time to choose the answer then your answer is reset to zero and the next question will continue. After each question, it automatically shows the correct answer. At the end, it will show the highest score.

In hard quiz has 8 questions. If you click right answer, it will show correct and go to the next question or if you click wrong answer, it will still show wrong until you choose correct answer. You solve it and choose answer. I hope it will be useful when you preparing to the exam or when you check your knowledge.

Next button is glossary. In this button has terms of all topics. You could find here terms of linear programming, simplex method and duality.