Introductionarray4j is a vector, matrix and N-dimensional array library for Java that combines ideas from JAMA, Matrix Toolkits for Java, JScience and NumPy.

array4j uses Java Native Access (JNA) to interface with vendor BLAS implementations such as Intel MKL and AMD ACML.

News2008/02/01 array4j is being used to develop a speaker recognition system for the NIST Speaker Recognition Evaluation that will take place in April.

2007/10/13 MATLAB integration is currently being implemented.