e Calculator | eˣ | e Raised to Power of x (2024)

Are you solving an equation with Euler's number? Our e calculator is here to help! Our tool allows you to compute e to the power of any number you desire.

Keep on reading if you're still wondering what exactly Euler's number is, what does e mean on a calculator, and how to calculate e to the x 📐🧑‍🏫

e is one of the most important constants in mathematics. We cannot write e as a fraction with integer numerator and denominator, and its decimal expansion is infinite and non-periodic – just like the famous number π. Its value is equal to 2.7182818284590452353602… and counting! (This is where rounding and approximation become essential.) 🧮

Now that we know what e (also known as Euler's number) and its approximate value is, we can start thinking about its possible applications.

1. e is the base of the natural logarithm, the same you can find using natural log calculator.

2. We use e in the natural exponential function (eˣ = e power x).

   In the eˣ function, the slope of the tangent line to any point on the graph is equal to its y-coordinate at that point.

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3. (1 + 1/n)ⁿ is the sequence that we use to estimate the value of e. The sequence gets closer to e the larger n is. When n = infinity, the sequence value is equal to Euler's number.

   We use this equation in compound interest calculations.

4. e is equal to the result of the following factorial sum:

5. e is also a part of the most beautiful equation in mathematics: $e^{iπ} + 1 = 0$eiπ+1=0 🌺

Since we already know what's the Euler's number, how about some other numbers we use in physics?

• Biot number;
• Knudsen number;
• Avogadro's number;
• Reynolds number; and
• f-number 😀

🔎 To see the real-life applications of exponential functions, head to Omni's exponential growth calculator.

Since we're forced to use an approximation of e, we can simply input the value of e into any calculator.

How does it work in practice? How to calculate e to the power x?

If your calculator doesn't allow symbols, simply enter 2.718281828 (or any rounded form of this number) into your choice value box 👍

In this section, we'll answer the very big question: "How to calculate e to the power x?" using both our calculator and the traditional formula.

1. The e calculator – it's so simple it doesn't need further explanation. Enter the value of x into the text box and enjoy your results displayed alongside the step-by-step solution 👣

2. The traditional calculation requires you to choose how many decimal places of the Euler's number you will use.

We decided to use 9 decimal places.

Let's follow an example:

We know that the area up to any x-value is also equal to eˣ:

We'd love to calculate the area up to the e¹⁰ function.

• e¹⁰ = 2.718281828¹⁰;

• 2.718281828¹⁰ = 2.718281828 × 2.718281828 × 2.718281828 × …;

• 2.718281828¹⁰ = 22026.47.

And this is how to calculate e to the power of 10.

As you can see, calculating e to the power of x might be pretty troublesome and time-consuming – our tool is a simple solution for that unnecessary problem 🤗

"Exp" is short for "exponential" and is used in the notation exp(x) as another way to write eˣ.

You can use the following Taylor series approximation: eˣ = 1 + x + x²/2! + x³/3! + …. Continue calculating and adding terms to get a better approximation.

Zero. Let's say we have e^-N, where N is a large number tending toward infinity. Now, given that e^-N = 1/e^N, as N gets larger, e^-N will get smaller, ending up at zero if N = ∞.