What does pow mean in python

The pow() function in Python returns the value of x^y (x raised to the yth power).

Syntax:

The following is the syntax of the math module pow() method:

import math
math.pow( x, y )

The built-in pow() method

pow(x, y[, z])

The function is Calculate the y power of , the built-in method will treat the parameter as an integer, while the math module will convert the parameter into a float.

Parameters

x -- Numeric expression. y – Numeric expression. z – Numeric expression.

Return value

Return the value of x

y

(x raised to the yth power). Example

The following shows an example of using the pow() method:

#!/usr/bin/python
# -*- coding: UTF-8 -*-
import math   # 导入 math 模块
print "math.pow(100, 2) : ", math.pow(100, 2)
# 使用内置，查看输出结果区别
print "pow(100, 2) : ", pow(100, 2)

print "math.pow(100, -2) : ", math.pow(100, -2)
print "math.pow(2, 4) : ", math.pow(2, 4)
print "math.pow(3, 0) : ", math.pow(3, 0)

Running results:

math.pow(100, 2) :  10000.0
pow(100, 2) :  10000
math.pow(100, -2) :  0.0001
math.pow(2, 4) :  16.0
math.pow(3, 0) :  1.0

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