Python Course Day 34 | NumPy 2D Array Indexing & Slicing in Python | Rows, Columns & Sub-Matrices

Publié le: 12 juin 2026
sur la chaîne: HelloHarendra

🚀 Python Full Course for Beginners in Hindi – Day 34

In this video, you will learn how to work with 2D NumPy Arrays, including accessing rows, columns, individual elements, and extracting sub-matrices using slicing techniques.

NumPy is one of the most important libraries for Data Science, Machine Learning, AI, and Scientific Computing.

📚 Topics Covered

✔ Creating 2D NumPy Arrays

✔ Understanding Rows and Columns

✔ Accessing Elements using [row, column]

✔ Selecting Complete Rows

✔ Selecting Complete Columns

✔ 2D Array Slicing

✔ Extracting Sub-Matrices

✔ Real-World Examples

✔ Beginner-Friendly Explanation in Hindi

Example Covered
grid = np.array([
[10, 20, 30],
[40, 50, 60],
[70, 80, 90]
])

print(grid[1,2])
print(grid[:,1])
print(grid[0:2,0:2])

🎯 This lecture is perfect for students who want to learn:

Python Programming
NumPy Library
Data Science
Machine Learning
Artificial Intelligence
Data Analysis

🔥 Follow the complete Python Course from Beginner to Advanced and become a Python Developer.

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