Scientists in France and Belgium are trying to find out whether the mathematical genius is different from the brain of ordinary people. In a published report, they said that the study found that someone can mentally solve complex mathematical problems quickly, probably because they can use brain parts that others cannot use. Researchers used positron ray scanning technology to compare the brain of a famous mathematician with the brain of ordinary people. They found that when mathematicians perform problem calculations, the part of the brain usually responsible for long-term memory also becomes active, and Most people do not have this phenomenon. Therefore, researchers have concluded that mathematicians use more memory when performing calculations, which speeds up calculations. This principle is the same as the principle of computers. The larger the memory, the faster the calculation speed. The following statements are consistent with this text:. ['The more you use your brain, the faster your calculations will be.', 'Long-term memory is generally activated during quick mental arithmetic.', 'Brain capacity determines the ability to handle mathematical problems.', 'Faster calculations because more memory is used.']