# How To Use abs() Function In Python With Examples

In Python, the `abs()` function is used to return the absolute value of a given number. The absolute value of a number is its distance from zero, regardless of whether it is positive or negative. In this article, I will tell you how to use the python abs() function with examples.

## 1. Python abs Function Definition.

1. The `abs()` function in Python is a built-in function that returns the absolute value of a given number.
2. The syntax for the `abs()` function is as follows:
`abs(num)`
3. The parameter `num` is the number whose absolute value is to be returned.
4. If the given number is a complex number, the `abs()` function returns its magnitude.

## 2. Python abs Function Examples.

1. Here are some common examples of using the `abs()` function in Python.
```Example 1:
```python
num = -10
abs_num = abs(num)
print("Absolute value of", num, "is", abs_num)
```
Output:
```
Absolute value of -10 is 10
```
In this example, we assign the value `-10` to the variable `num`. We then use the `abs()` function to get the absolute value of `num`, which is `10`.

Example 2:
```python
a = -5
b = 10
c = -15
abs_sum = abs(a) + abs(b) + abs(c)
print("Absolute sum of", a, "+", b, "+", c, "is", abs_sum)
```
Output:
```
Absolute sum of -5 + 10 + -15 is 30
```
In this example, we have three variables `a`, `b`, and `c` with different values. We use the `abs()` function to get the absolute value of each variable and then add them together to get the absolute sum.

Example 3:
```python
num_list = [-2, 4, -6, 8, -10]
abs_list = [abs(num) for num in num_list]
print("Absolute values of", num_list, "are", abs_list)
```
Output:
```
Absolute values of [-2, 4, -6, 8, -10] are [2, 4, 6, 8, 10]
```
In this example, we have a list of numbers `num_list`. We use a list comprehension to apply the `abs()` function to each number in the list and create a new list `abs_list` with the absolute values of the original numbers.```
2. Below is a complex number example using the python abs function.
```>>> num = 3 + 4j
>>>
>>> abs_num = abs(num)
>>>
>>> print("Absolute value of", num, "is", abs_num)
Absolute value of (3+4j) is 5.0

# this is because √(3²+4²) = 5```

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