Java Scientific Computing Library - Signal Processing, FFT, Filters, PSD, DCT, SciPy-like APIs for JVM & Android used in Machine Learning and Data Science.

A java package for nd-array calculations

Numerically robust Java matrix library with core matrix operations, Gauss–Jordan elimination, determinant and inverse computation, and comprehensive JUnit testing.

Java library for arbitrary-precision integer and floating-point arithmetic with support for addition, subtraction, multiplication, division, normalization, and comprehensive JUnit testing.