## Introduction

Python comes with a rich library of built-in functions that provide a wide range of capabilities. These functions are readily available for use without the need to define them. In this guide, we'll explore how to use some of Python's most commonly used built-in functions, and provide sample code to illustrate their usage.

## Using Built-in Functions

Python's built-in functions cover various areas such as mathematical operations, data manipulation, string handling, and more. Let's explore a few of these functions with sample code:

### 1. `len()` - Finding the Length of Sequences

``# Using len() to find the length of a listmy_list = [1, 2, 3, 4, 5]length = len(my_list)print("Length of the list:", length)`        `

### 2. `max()` and `min()` - Finding Maximum and Minimum Values

``# Using max() and min() to find the maximum and minimum values in a listnumbers = [42, 15, 73, 9, 64]max_value = max(numbers)min_value = min(numbers)print("Maximum value:", max_value)print("Minimum value:", min_value)`        `

### 3. `abs()` - Finding the Absolute Value

``# Using abs() to find the absolute value of a numbernum = -7abs_value = abs(num)print("Absolute value:", abs_value)`        `

## Conclusion

Python's built-in functions are powerful tools that save time and effort in coding. They cover a wide range of functionalities, making them invaluable for everyday programming tasks. Understanding and using these functions effectively can significantly improve your productivity as a Python developer.