2. When m is a positive integer, n? Refers to the formula meaning m n times. When m is a decimal, m can be written as a/b (where a and b are integers), n? Represents n? Open the root number b again. When m is an imaginary number, we need to use Euler formula eiθ= cosθ+isθ, and then use logarithmic properties to solve it. Put n? As a result of power, it is called m power of n, also called m power of n.