**Python** is a high-level programming language that provides functionalities for a number of operations. The **`math` module** comes with mathematical methods and constraints, which make for straightforward calculations. 

**`math.expm1()`** returns *$e^{x^{\mathrm{}}} - 1$*, where `e` is the base of the natural logarithm and `x` is the value passed as parameter.

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## Syntax

## Parameters
* `x`: The exponent value. This parameter is required.

## Return value
This function returns a `float` value that represents $e^{x^{\mathrm{}}} - 1$.

## Code

#import library
import math
  
id1 = math.expm1(5.463)
print("5.463: ",id1)

id2 = math.expm1(-10.43)
print("-10.43: ",id2)

id3 = math.expm1(0.000)
print("0.000: ",id3)

id4 = math.expm1(293.27)
print("293.27: ",id4)

id5 = math.expm1(-15.89)
print("-15.89: ",id5)

What is math.expm1() in Python?

Python's math.expm1() computes e^x - 1, where e is the natural logarithm base.