# Python exp() Function Example | Python Math Library

Python exp() is an inbuilt function that is used to calculate the value of any number with a power of e. Means e^n where n is the given number.

Python exp() is an inbuilt function that is used to calculate the value of any number with a power of e. Means e^n where n is the given number. The value of e is approximately equal to 2.71828… The exp() function is under the math library, so we need to import the math library before using this function.

### Python exp()

In Mathematics, the exponential value of a number is equivalent to the number being multiplied by itself a particular set of times. The number to be multiplied by itself is called the base, and the number of times it is to be multiplied is the exponent.

Python number method exp() returns exponential of x: ex. The exp() function does not accessible directly, so we need to import the math module, and then we need to call the exp() function using math static object.

#### Syntax

``math.exp(num)``

The function takes only one argument num of which we want to find exponential.

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