Own calculator app analytics for May 3

We bring to your attention a painfully familiar application, but supplemented with a number of interesting functions. Now the calculator is playing by your rules! By creating a rule according to which 1 + 1 = 3, you can surprise your teacher with an unexpected result. Create your own rules for any expressions and enjoy the joy of others. The application supports the following languages: Russian, English, Spanish, Polish, Portuguese, French, German, etc.