What does pow mean in python?

What does pow mean in python?

The pow() method in python returns the value of xy (x to the yth power).

Syntax

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

import math
math.pow( x, y )

Built-in pow() method

pow(x, y[, z])

The function is to calculate the y power of x. If z exists, then take the modulo of the result. The result is equivalent to pow(x,y) %z

Note:

pow() is called directly through the built-in method. The built-in method will treat the parameter as an integer, while the math module will convert the parameter into float.

Parameters

x -- Numeric expression.

y -- Numeric expression.

z -- Numeric expression.

Return value

Return the value of xy (x to the power of y).

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)

The output result after running the above example is:

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

Related recommendations: "Python Tutorial》

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