Learn how to use boolean indexing in NumPy with & (AND) and | (OR) in this 6-minute Data Science quick guide. 🚀
You’ll get clear, copy-paste examples that show: how to build boolean masks, combine conditions safely with parentheses, use ~ to invert masks, use np.logical_and / np.logical_or when needed, and apply masks to 1D & 2D arrays. Perfect for students and developers who want fast, practical code to filter and clean arrays.