We can get the absolute value of a number in Python using **fabs()** function. The function is provided by **math** module. In addition to, **abs()** function can also be used. But, before that a bit about absolute value of a number itself.

Absolute value of number ‘x’ would be –

x if x>0 and,

x if x<0

This implies, if value of x is greater than zero then, absolute value of x is x itself. But, if value of x is less than zero i.e. negative real number then, absolute value of -x would be x. Also, this applies only for real numbers. Things get different in case of complex numbers.

## Absolute value of a number using fabs() in Python

We would first get the numerical input from the user. Thereafter, **fabs() function** provided by **math** module is used to get the desired outcome.

#Ask the user to input a number x=float(input("Enter a number: ")) import math absolute=math.fabs(x) print("The absolute value of ",x," is", absolute)

Here, we are using **float** data type to get the input from the user. This is for floating point numbers i.e. to include those containing decimal fractions. The input is stored in variable ‘**x**‘.

Then, **math** module is imported. **math.fabs(x)** gets us the absolute value of input stored in variable ‘**x**‘ and the result is stored in variable ‘**absolute**‘.

Lastly, we can get the desired outcome using **print()** function.

## Absolute value of a number using abs() in Python

**Alternately**, we can also get the absolute value of a number using** abs()** function.

#Ask the user to input a number x=float(input("Enter a number: ")) print("The absolute value of ",x," is", abs(x))

Variable ‘**x**‘ stores the input from the user. Then, we get the desired outcome by using **abs()** function inside the **print()** function directly.

**In conclusion**, we have discussed how to get the absolute value of a number in Python using **fabs()** and **abs()** functions.

**Additional Info –**

In this article, we have discussed how to get the absolute value of real numbers. We can also get the absolute value of complex number too. Complex numbers are expressed as **x+y i**, where x and y are real numbers. We will be discussing that in coming articles.