github.com/wamuir/matrix-market (go): Package market reads and writes in the NIST Matrix Market native exchange format.  The Matrix Market is a service of the Mathematical and Computational Sciences Division of the Information Technology Laboratory of the National Institute of Standards and Technology (NIST), containing "test data for use in comparative studies of algorithms for numerical linear algebra, featuring nearly 500 sparse matrices from a variety of applications, as well as matrix generation tools and services." The Matrix Market native exchange format has become a standard for exchanging matrix data.
Keywords: dense-matrices|go|matrix|matrix-market|nist|sparse-matrices