# How to Use ‘e’ in Excel? (Euler’s Number)

If you’re an Excel user, you’re probably familiar with basic functions like SUM, AVERAGE, and COUNT.

But did you know that Excel has a built-in function to calculate Euler’s number?

Euler’s number, denoted as “e,” is a mathematical constant that is used in a variety of applications, including finance, physics, and engineering.

In Excel, you can use the EXP function to calculate e to any power.

In this tutorial, I will show you how to use ‘e’ in Excel (where ‘e’ is the Euler’s number)

## What is e (Euler’s Number), and What Does it Mean?

The symbol e is also known as the Euler’s number. It is named after the Swiss mathematician Leonhard Euler, who introduced it to the mathematical world.

It is a mathematical constant that is approximately equal to 2.71828.

It is one of the most important mathematical constants that appears in many mathematical equations, especially those involving exponential growth and decay.

For example, it is often used in growth problems like population models.

Euler’s number is an irrational number, which means it cannot be expressed as a simple fraction. It is also a transcendental number, meaning it is not a root of any polynomial equation with rational coefficients.

In simpler terms, it is a number that cannot be calculated precisely using arithmetic operations.

Its usefulness also stems from the fact that a number of natural processes can be described mathematically using this number.

That is why the logarithm that uses this number as its base is called a Natural logarithm.

Despite its complexity, Euler’s number is an essential constant in mathematics and has many practical applications.

It is used in calculus, probability theory, and physics, among other fields. In Excel, it can be used to calculate exponential growth and decay rates, as well as compound interest.

`Also read: How to Square a Number in Excel?`

## How to Use Euler’s Number (e) in Excel?

The value of e is mostly used in combination with a rate and a time period, often having the value of e raised to the power of some variable(s).

Owing to its application in numerous areas, Excel has the handy EXP function in its stash of statistical tools.

This function lets you use the value of ‘e’ in Exel without having to memorize its value.

The EXP function lets you use the value of e and raise it to any power to get the result.

The syntax for the EXP function is quite simple:

`=EXP(value)`

Here, EXP returns the value of constant e raised to the power of the given value.

For example, the function =EXP(5) will return the value of e5.

Similarly, even if you want to find the value of e raised to a more complex formula, for example, 2x+5, you simply need to type: =EXP(2x+5). This will give the same value as e2x+5.

It goes without saying that if you want to simply get the value of e, you only need to find the value of e1. In other words, you need to use the formula:

`=EXP(1)`

Let us see a few small examples to understand how the EXP function works:

1. The first formula calculates the value of e0. This returns the value 1, since any value raised to the power of 0 returns 1.
2. The second formula calculates the value of e1. This is a great way to get the value of e, if you want to combine it with some other formula or function. So, for example, if you want to find the value of 2e, you only need to type the formula: =2*EXP(1).
3. The third and fourth formulae calculate the values of e2 and e3, respectively. As such, you can find the value of e raised to any power in the same way.
4. The fifth formula shows that you can also use formulas and functions within the EXP function. For example, you can find the value of e2x by using the formula: =EXP(2*x), where x can be any number or a reference to a cell containing a number.

The EXP function can be used in many different ways in Excel. You can use it to calculate compound interest, population growth, or any other situation that involves exponential growth or decay.

Note: EXP function is the inverse of the natural logarithm function, represented by the LN function in Excel. So, =EXP(1) would give you the value 2.718282 and =LN(2.718282) would give you 1

In this tutorial, we showed you how you can use the EXP function to either get the value of the Euler’s number or perform calculations that involve this constant.

We hope our simple examples and explanations have made it easy for you to understand how to use ‘e’ in Excel.

Other Excel tutorials you may like: I am a huge fan of Microsoft Excel and love sharing my knowledge through articles and tutorials. I work as a business analyst and use Microsoft Excel extensively in my daily tasks. My aim is to help you unleash the full potential of Excel and become a data-slaying wizard yourself.