# `pow()` function 

1. Import the math module as shown below in your Python environment.

2.  Use the pre-defined `math.pow(number,exponent)` function to find the power of the number.

# Iterative approach

1. Define the function, which takes two arguments:  
   
    + number
    + exponent/power

2. Find the power of a number: multiply the number with itself the same number of times as the exponent’s value. We use the *for...loop* to achieve this task and store the result in the res variable.

3. Return the result stored in **res**, which is the required power of a number.

4. Finally, display the output.


def power(n,e):
    res=1
    for i in range(e):
        res *= n
    return res
print(power(4,2))

# Recursive approach

1. Define the function, which takes two arguments:  
   
    + number
    + exponent/power

2. If the exponent/power is *0*, then return *1*.

3. If the exponent/power is *1* then return *n*, i.e., the number itself.

3. Otherwise, multiply the current number and call the `power(n,e)` function recursively with #key# e (exponent/power) decremented by 1: n*power(n, e-1) #key# each time the function is called. 

4. Finally, display the output, which is the desired power of the number. 

def power(n, e):
    if e == 0:
        return 1
    elif e == 1:
        return n
    else:
        return (n*power(n, e-1))
n = 4
p = 2
print(power(n, p))

How to find the power of a number in Python

Use Python's `math.pow()`, an iterative loop, or recursion to compute a number's power.

How to find the power of a number in Python

pow() function

Iterative approach

Recursive approach

`pow()` function