# Python abs() Function – Tutorial with Examples

The `abs()` function in Python is a built-in function that returns the absolute value of a number. It is a simple and useful function that can be used in various mathematical and computational applications.

## Basic Information

• The `abs()` function is a part of the `math` module, but it can be used without importing the module because it is a built-in function.
• The `abs()` function can take any number type as an argument (integer, float, complex, etc.) and returns the absolute value of that number.
• The absolute value of a number is the positive value of the number without its sign. For example, the absolute value of -10 is 10, and the absolute value of 10 is 10.

## Syntax

```abs(x)
```

where `x` is the number for which you want to find the absolute value.

## Return Value

The `abs()` function returns the absolute value of the number passed as an argument. The return value is always a positive number, even if the argument was a negative number.

## Examples

### Example 1: Finding the absolute value of an integer

```>>> abs(-10)
10
>>> abs(10)
10
```

### Example 2: Finding the absolute value of a float

```>>> abs(-10.5)
10.5
>>> abs(10.5)
10.5
```

### Example 3: Finding the absolute value of a complex number

```>>> abs(complex(-1, -1))
1.4142135623730951
```

## Use cases

The `abs()` function can be used in various mathematical applications where finding the absolute value is necessary. For example:

• Finding the magnitude of a complex number
• Rounding a number to its nearest integer
• Comparing numbers by their magnitude
• Converting negative numbers to positive numbers

## Conclusion

In conclusion, the `abs()` function is a simple and versatile built-in function in Python that returns the absolute value of a number. It can be used in various mathematical and computational applications, making it a useful tool for developers to have in their toolkit.