Python Program to Find Power of a number without using pow function

In this post, you will learn a Python Program to Find the Power of a number without using the pow function with a simple explanation.

There are various ways to find the power of a number without using the pow() function but here we learn the three best ways to do it.

1. Using Arithmetic Operator
2. Using for-loop &
3. Using Function (User-defined Function)

So let us start writing programs using all three ways one by one.

Using Arithmetic Operator

Before writing a program you should know about:

1. Arithmetic Operators { Exponential (**) }

Source code

base = int(input('ENter base value: '))
exponent = int(input('ENter exponent value: '))

ans = base**exponent

print(f'Answer is : {ans}')

Output

ENter base value: 3
ENter exponent value: 2
Answer is : 9

Using for-loop

Before writing a program you should know about:

1. for-loop

Source Code

base = int(input('ENter base value: '))
exponent = int(input('ENter exponent value: '))

ans = 1
for i in range(exponent):
    ans *=  base

print(f'Answer is : {ans}')

Output

ENter base value: 3
ENter exponent value: 4
Answer is : 81

Using Function

This is a new way to do this program and it also helps you to understand the concepts of Python Functions.

Before writing a program few programming concepts you have to know:

1. Python Function &
2. you are familiar with the concept of Function return a function.
3. Arithmetic Operators { Exponential (**) }

Source Code

def to_power(x):
    def num(n):
        return n**x
    return num

base = int(input('ENter base value: '))
exponent = int(input('ENter exponent value: '))

result = to_power(exponent)

print(f'Answer is : {result(base)}')

Output

ENter base value: 16
ENter exponent value: 2
Answer is : 256

Instead of Using a concept of function return function, you can directly write:

def to_power(n,x):
    return n**x

print(to_power(2,3))

Output: 8