In this Python tutorial, we will discuss how to **calculate exponential value of a number in Python**. Moreover, we’ll look at various methods present with examples to calculate exponential value of a number in Python.

Recently, I have been working on a machine learning project and found that it requires the exponential value of a number. So, I have researched and found that we have many ways to calculate exponential value of a number in Python.

## Methods to calculate exponential value of a number in Python

There are many different methods to calculate exponential value of a number in Python :

- for loop
- The ** operator
- pow() function
- math.pow() method
- math.exp() method

Let’s see them all, one by one with some illustrative examples:

### Method 1: Calculate exponential in Python using for loop

One of the initial approaches to calculate exponential value of a number in Python is to utilize loops in Python. The **for loops** allow us to repeatedly execute a code block in Python, which is particularly beneficial for tasks like calculating exponential values.

**Example: **Consider a situation where we have to create a Python program that can calculate exponential value of a number without using any specific function present in Python and also take the values from the user.

```
base = int(input('Enter the base value: '))
exponent = int(input('Enter the exponent value: '))
result = 1
if exponent != 0:
for i in range(exponent):
result = result * base
else:
result = result
print(f"The value of {base} to the power {exponent} is: ", result)
```

**Output:** Here, In this case, we have initialized a Python variable to 1. This will be used to store the final result of the base raised to the power of the exponent.

If the exponent value is not **0**, a **for loop** is initiated in Python, running from **0 to exponent – 1**. The variable **i **takes on each of these values in turn. The result is multiplied by the base for each iteration. Effectively, this multiplies base by itself exponent times.

If the exponent is **0**, the else block executes, but it doesn’t actually change anything.

```
Enter the base value: 7
Enter the exponent value: 3
The value of 7 to the power 3 is: 343
```

This way we can use **conditional statements** with a **for loop** to calculate the exponential value of a number in Python.

### Method 2: Calculate the exponential value of a number in Python using the ** operator

The **** operator** is a simple and direct way to calculate the power of a number in Python. We can use it to raise any number (base) to the power of any other number (exponent). This operator is versatile and can handle integers, floating-point numbers, and even complex numbers.

**Example:** Here we will take an example and check how to calculate the exponential value of a number using the **** operator**.

```
new_base = 8
new_exp = 3
print ("Exponential Value is: ", new_base ** new_exp)
```

**Output:** Here is the implementation of the following given Python code.

`Exponential Value is: 512`

### Method 3: Calculate the exponential value of a number in Python using the pow() function

- Python provides a built-in
**pow() function**that users can use to calculate the exponential value in addition to the**** operator**. - After accepting the base and exponent as inputs, the function returns the equivalent value.
- One of the built-in functions,
**pow()**, accepts two to three arguments. When two parameters are supplied, it assists in determining the exponential value; if a third argument is passed, the exponential value’s modulus is then determined.

**Example:** Let’s take an example and check how to calculate exponential value of a number using the **pow() function** in Python.

**Source Code:**

```
new_base = 16
new_exponent = 4
# using pow() function
result= pow(new_base, new_exponent)
print("Exponential value is :",result )
```

**Output:** In the following given code first, we declared two variables. Next, we used the **pow() function** to get the exponential value of input numbers in Python.

`Exponential value is : 65536`

Here is the implementation of the following given Python code:

### Method 4: Calculate the exponential Python using math.pow() function

- In this section, we will discuss how to calculate the exponential value of a number using the
**math.pow()**function. - The value of x raised to the power of y is returned by the math.pow(x, y) function, which requires two inputs. It raises a
**ValueError**if x is negative and y is not an integer. - Both parameters are converted into floats using
**math.pow()**function, which then outputs the float datatype.

**Example:**

```
import math
new_output= math.pow(7, 2)
print(new_output)
```

**Output:** In the above code first, we imported the math library and then used the **math.pow()** function and within this function, we passed the exponential and power values.

`Exponential value is: 49.0`

You can refer to the below Screenshot:

### Method 5: Calculate exponential value in Python using math.exp() function

- In this section, we will discuss how to calculate exponential value of a number in Python using
**exp()**function from the**math**library. - Python’s built-in
**exp() function**can be used to determine any number’s power of e value. signifies**e^n**, where n is the supplied number. 2.71828 is approximately equal to the value of e. The**exp() function**is part of the math library, so before using it, we must import the math library. - The
**math.exp(x)**function, where e is the base of the natural logarithm, returns the value of e raised to the power of x.

**Syntax:**

Let’s have a look at the Syntax and understand the working of **math.exp(x)** in Python

`math.exp(x)`

**Example:** Here we will take an example and check how to calculate exponential value of a number in Python using **math.exp()** function.

**Source Code:**

```
import math
new_val = 7
new_output = math.exp(new_val)
# Display the Content
print('Exponent of value :', new_output)
```

**Output:**

`Exponent of value : 1096.6331584284585`

Here is the Screenshot of the following given Python code:

## Conclusion

In this article, we have discussed how to **calculate exponential value of a number in Python**. What are the different methods such as **for loop**, the **** operator**, **pow()** function, and **math library functions** like **pow() and exp()** to calculate the exponential value of a number in Python? Also, I have explained each of the methods with the help of some examples in Python.

You may also like to read the following Python tutorials.

- Find perfect number in Python
- Reverse a number in Python
- Swap two numbers in Python
- Python program for birthday wishes

I am Bijay Kumar, a Microsoft MVP in SharePoint. Apart from SharePoint, I started working on Python, Machine learning, and artificial intelligence for the last 5 years. During this time I got expertise in various Python libraries also like Tkinter, Pandas, NumPy, Turtle, Django, Matplotlib, Tensorflow, Scipy, Scikit-Learn, etc… for various clients in the United States, Canada, the United Kingdom, Australia, New Zealand, etc. Check out my profile.