NumPy fundamentals

https://numpy.org/doc/2.3/user/basics.html

These documents clarify concepts, design decisions, and technical constraints in NumPy. This is a great place to understand the fundamental NumPy ideas and philosophy.

Array creation Indexing on ndarrays I/O with NumPy Data types Broadcasting Copies and views Working with Arrays of Strings And Bytes Structured arrays Universal functions (ufunc) basics