NumPy Arrays

NumPy Arrays

NumPy is the foundation of numerical computing in Python.

What you will learn

• Creating and indexing arrays
• Working with numerical data efficiently
• How arrays differ from plain Python lists

Why it matters

Pandas is built on top of NumPy. Understanding arrays first makes DataFrames much easier to reason about.

Reference

McKinney, W. (2022). Python for Data Analysis: Data Wrangling with Pandas, NumPy, and Jupyter (3rd ed.). O'Reilly Media.