Every so often its good to exercise your brain with a math problem or two that forces you to recall principles you learned ...

ANSWER: We are in a square year. If we square 45, i.e. 45 X 45, we get 2025. That will not happen again until 2116, when 46 X 46 = ...

The article describes the features of the process of recognition of symbols of mathematical expressions. The possibility of simultaneous execution of structural analysis and character classification ...