Introduction

A matrix is a two-dimensional array of numbers arranged in rows and columns. In Python, you can create and display a matrix using lists of lists. This guide will walk you through creating a Python program to display a matrix. We’ll explain the code, how to run it, and how to understand the output.

Python Code to Display a Matrix

# Function to display a matrix
def display_matrix(matrix):
    for row in matrix:
        for element in row:
            print(element, end=" ")
        print()  # Newline after each row

# Main function
def main():
    # Define a matrix (2D list)
    matrix = [
        [1, 2, 3],
        [4, 5, 6],
        [7, 8, 9]
    ]
    
    # Display the matrix
    print("The matrix is:")
    display_matrix(matrix)

# Run the main function
if __name__ == "__main__":
    main()

Explanation of the Code

1. Defining the Matrix:
   • The matrix is defined as a list of lists in Python. Each inner list represents a row of the matrix. In the example code, the matrix is defined as:

matrix = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
]

This creates a 3×3 matrix where the numbers 1 to 9 are arranged in a grid.

Displaying the Matrix:

• The display_matrix() function is designed to take a matrix as input and print it row by row.
• The outer for loop iterates through each row in the matrix.
• The inner for loop iterates through each element in the row and prints it on the same line, separated by a space.
• After printing each row, a print() statement is used to move to the next line, ensuring the matrix is displayed correctly.

Main Function:

• The main() function is where the matrix is defined and the display_matrix() function is called.
• The if __name__ == "__main__": statement ensures that the main() function is run only when the script is executed directly, not when it’s imported as a module.

Running the Code:

• Save the code in a file, for example, display_matrix.py.
• Run the script in a Python environment or terminal using the command.

python display_matrix.py

Output

The matrix is:
1 2 3 
4 5 6 
7 8 9 

How Output is Displayed

The display_matrix() function prints each row of the matrix on a new line.

The numbers within each row are separated by a space.

The output format reflects the structure of the matrix, making it easy to visualize the 2D grid.

Conclusion

This Python program demonstrates how to define and display a matrix using a list of lists. By understanding the structure of the code and how the matrix is processed row by row, you can easily modify or expand this program to work with different matrices or implement more complex matrix operations.

The matrix was successfully displayed in a readable format, with each element printed in the correct position within the grid. This approach can be used in various applications, including mathematical computations, data representation, and more.

Vist These Website To Learn More about Python

Python Lists Documentation – Official Python documentation on lists, which is fundamental for creating matrices.

GeeksforGeeks – Python Program to Print a Matrix – A practical guide on how to print matrices in Python.

W3Schools – Python Arrays – Introduction to arrays and how they relate to lists in Python.

Introduction

This Python program uses the datetime module to fetch and display today’s date and time. It’s a straightforward way to get the current date and time in a human-readable format.

Code in Python

from datetime import date

# Get today's date
today = date.today()

# Print today's date in default format
print("Today's date is:", today)

# Format today's date
formatted_date = today.strftime("%B %d, %Y")  # Example: September 01, 2024

# Print the formatted date
print("Today's date is:", formatted_date)

Output

Today's date is: 2024-09-01
Today's date is: September 01, 2024

How To Use The Code

Importing the Module:

from datetime import date

Getting Today’s Date

today = date.today()

Printing Todays Date

print("Today's date is:", today)

Formatting The Date

formatted_date = today.strftime("%B %d, %Y")

Printing the Formatted Date

print("Today's date is:", formatted_date)

Conclusion

This code snippet demonstrates how to retrieve and display the current date using Python. By using the datetime module’s date class, you can easily access today’s date. The strftime method allows you to format the date in a more human-readable way, which can be particularly useful for displaying dates in user interfaces or reports. This approach is straightforward and leverages Python’s built-in capabilities for handling date and time information.

Compiled Code With Live Results

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Learn Python From These Website

1. Official Python Documentation
   The official Python documentation provides a comprehensive tutorial and reference material. It’s great for understanding the core concepts and features of Python.
2. W3Schools
   W3Schools offers a beginner-friendly Python tutorial with interactive examples and exercises to help you practice coding.
3. Codecademy
   Codecademy provides an interactive learning environment with exercises and projects to help you learn Python from scratch.
4. Coursera
   Coursera offers Python courses from universities and institutions, ranging from introductory to advanced levels. Many courses include video lectures, quizzes, and peer-graded assignments.
5. edX
   edX provides a variety of Python courses from institutions like MIT and Harvard. Courses cover different aspects of Python programming, including data science and machine learning.
6. Kaggle
   Kaggle offers Python tutorials specifically focused on data science and machine learning. It includes hands-on exercises and real-world datasets to work with.
7. Real Python
   Real Python offers a wealth of tutorials, articles, and courses on Python. The site covers a broad range of topics from basic programming to advanced Python concepts.
8. SoloLearn
   SoloLearn provides a mobile-friendly platform for learning Python with interactive lessons, quizzes, and a community forum for discussion.
9. Python.org
   The official Python website has a “Getting Started” section with resources for beginners, including tutorials, books, and guides.
10. GeeksforGeeks
    GeeksforGeeks provides a wide range of Python tutorials, articles, and coding problems to help reinforce your learning.

These resources offer various ways to learn Python, from interactive coding environments to comprehensive courses and tutorials. Choose the one that best fits your learning style and goals.

Introduction

Adding two numbers is one of the most fundamental operations in programming, often used to illustrate the basic syntax and structure of a programming language. This simple task helps us understand how different languages handle variables, functions, and output. Below, we’ll explore the basic code for adding two numbers in various programming languages and break down the core components of each example to make the concept clear.

Code 

# Python code to add two numbers
def add_numbers(a, b):
    return a + b

# Example usage
num1 = 5
num2 = 10
result = add_numbers(num1, num2)
print("Sum:", result)

• EXPLANATION

• Define the Function

  • In Python, functions are defined using the def keyword. Here’s how you define a function to add two numbers:
    python

    Copy code

    def add_numbers(a, b): return a + b
    • def indicates the start of a function definition.
    • add_numbers is the name of the function.
    • (a, b) are parameters that the function will accept.
    • return a + b computes the sum of a and b and returns the result.

• Set Up Input Values

  • To use the function, you need to specify the values you want to add. In the example:
    python

    Copy code

    num1 = 5 num2 = 10
    • num1 and num2 are variables that store the numbers you want to add. Here, num1 is set to 5, and num2 is set to 10.

• Call the Function

  • After defining the function and setting the values, you call the function to get the result:
    python

    Copy code

    result = add_numbers(num1, num2)
    • add_numbers(num1, num2) executes the function with num1 and num2 as arguments.
    • The returned value (sum of 5 and 10) is stored in the variable result.

• Print the Result

  • To display the result, use the print function:
    python

    Copy code

    print("Sum:", result)
    • print outputs the string "Sum:" followed by the value of result (which is 15).

• Run the Code

  • To see the output, save the code in a file, for example, add.py, and run it using:
    sh

    Copy code

    python add.py
    • This command executes the Python script and displays the output in the terminal or command prompt.

• Understand the Output

  • When you run the script, the output will be:
    makefile

    Copy code

    Sum: 15
    • This confirms that the function correctly added the numbers 5 and 10, displaying the sum as 15.

Usage: Save the code in a file named add.py. Run it using the command:

OUTPUT

SEE THE OUTPUT OF THE ABOVE CODE 

Sum: 15

SEE COMPLETELY COMPILED CODE

PREES PLAY BUTTON TO RUN THE PROGRAM 

Conclusion

The Python code for adding two numbers showcases the language’s simplicity and effectiveness. By defining a function, setting input values, calling the function, and printing the result, you can perform basic arithmetic operations easily. Python’s clear syntax makes it a great choice for learning programming fundamentals. For more information on Python functions and basic operations, you can visit the official Python documentation.

COMPILE CODE : CODE COMPILER 

Tips on How to Use the To-Do List Code
Add Task:

Choose option 1 from the menu to add a new task.
Enter a description of the task when prompted. The task will be added to the list with a status of “Pending.”
Mark Task Complete:

Choose option 2 to mark a task as complete.
First, view all tasks to see the task numbers.
Enter the number corresponding to the task you want to mark as complete. The status of the task will change to “Completed.”
View All Tasks:

Choose option 3 to view all tasks.
This will display a list of all tasks with their statuses (Pending or Completed).
Exit:

Choose option 4 to exit the application.
How to Publish This Code
Hosting:

For a web-based application, you would need to use a web framework like Flask or Django in Python. This code is a console-based application, so it needs to be adapted for web use.
Python Web Application:

If you want to deploy a Python-based web application, consider using Flask. You would need to convert this code into routes and templates for a web server.
Documentation:

Provide clear instructions on how to run the script if you’re sharing it as a console application. Include information on required Python version and dependencies if any.

Python Code

# Simple To-Do List Application

def display_menu():
    print("\nTo-Do List Menu:")
    print("1. Add Task")
    print("2. Mark Task Complete")
    print("3. View All Tasks")
    print("4. Exit")

def add_task(task_list):
    task = input("Enter the task: ")
    task_list.append({"task": task, "completed": False})
    print(f"Task '{task}' added.")

def mark_task_complete(task_list):
    view_tasks(task_list)
    task_index = int(input("Enter the task number to mark as complete: ")) - 1
    if 0 <= task_index < len(task_list):
        task_list[task_index]["completed"] = True
        print(f"Task '{task_list[task_index]['task']}' marked as complete.")
    else:
        print("Invalid task number.")

def view_tasks(task_list):
    if not task_list:
        print("No tasks available.")
        return
    print("\nTasks List:")
    for index, task in enumerate(task_list, start=1):
        status = "Completed" if task["completed"] else "Pending"
        print(f"{index}. {task['task']} - {status}")

def main():
    task_list = []
    while True:
        display_menu()
        choice = input("Enter your choice: ")
        if choice == '1':
            add_task(task_list)
        elif choice == '2':
            mark_task_complete(task_list)
        elif choice == '3':
            view_tasks(task_list)
        elif choice == '4':
            print("Exiting the application.")
            break
        else:
            print("Invalid choice. Please try again.")

if __name__ == "__main__":
    main()

Compiled Code With Results

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