【827】英文指数读法

参考：Exponential Notation

参考：What is the pronunciation of 2 x 10-8?

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10³ is read as “10 to the third power” or “10 cubed.” It means 10 • 10 • 10, or 1,000.

8² is read as “8 to the second power” or “8 squared.” It means 8 • 8, or 64.

5⁴ is read as “5 to the fourth power.” It means 5 • 5 • 5 • 5, or 625.

b⁵ is read as “ b to the fifth power.” It means b • b • b • b • b. Its value will depend on the value of b.

负指数幂

5^-4 is read as “5 to the minus/negative fourth power.”