The following is the explanation of dynamic words:

Power in mathematics: in mathematics, power usually refers to the operation of exponent, which refers to the result obtained by multiplying a number by itself many times. For example, the third power of 2 can be expressed as 2 3 = 2× 2× 2 = 8.

Power in physics: In physics, power can also be expressed as a unit of power. Power refers to the work done per unit time, usually measured by the energy transmitted per unit time. Common unit of power are Watt W and kW kW, etc.

Power in computer: In computer science, power can refer to power operator or * *, which is used to represent the operation of exponent. For example, in computer programming, the cubic of 2 can be expressed as 2**3=2×2×2=8.

Efficacy in statistics: In statistics, efficacy can be used to describe the statistical efficacy in hypothesis testing. Statistical power refers to the ability to reject the original hypothesis at a given level of significance. Higher statistical power means lower probability of the second kind of error. In mathematics, power refers to the result of multiplying the radix of a number by its multiple exponents.

Usage of power words

1, power operation: power word can represent exponential operation, that is, the result of multiplying a number by itself many times. For example, the third power of 2 can be expressed as 2 3 and so on.

2. Power function: a power word can also refer to a power function, that is, a function with the shape of y = x n, where x is an independent variable and n is a constant. Power function is widely used in mathematics, such as quadratic function and exponential function.

3. Power series: Power words can also be used to represent power series, that is, series in the form of A0+A1X+AX2+... +ANX N+ ..., where ai is a constant coefficient and X is a variable. Power series plays an important role in mathematical analysis, function approximation and calculus.