It shows strength. For example, b 2 means the square of B. There is no common name in Chinese, which can be power, caret, caret and so on. The ""here is a mathematical symbol, which is used to represent three-level operation, meaning power. When inputting mathematical formulas on the computer, this symbol is often used to represent the power because it is inconvenient to input the power.
For example, the fifth power of 2 is usually expressed as 2 5, for example, 5 2 represents the square of 5, that is, the square of 5 (see power for the operation of power). For example, 4 3 equals 4 times 4 times 4 equals 64, which can be understood as the cubic of 4.