I used the bench marks from http://code.google.com/p/java-matrix-benchmark http://code.google.com/p/java-matrix-benchmark Decision came down to speed is reason

I used the bench marks from http://code.google.com/p/java-matrix-benchmark http://code.google.com/p/java-matrix-benchmark Decision came down to speed is reasonable, library has some other math functions I need, and time taken to build.