Java is everywhere in backend systems, enterprise applications, and production environments. But when it comes to numerical computing, data manipulation, and scientific-style operations, Python's NumPy ecosystem has become the standard.

I wanted a similar experience in Java: a lightweight, dependency-free library for working with multidimensional arrays and linear algebra.

That idea became NumPy4J.

What is NumPy4J?

NumPy4J is an open-source numerical computing library for Java inspired by NumPy.