void () { // see http://ru.onlinemschool.com/math/library/matrix/multiply/ assertEquals(Matrix.create(2, // rows 6, 12, 27, 9), Matrix.create(2, // rows 4, 2, 9, 0).multiply(Matrix.create(2, // rows 3, 1, -3, 4))); assertEquals(Matrix.create(3, // rows 7, -2, 19, -15, 3, -18, 23, -4, 17), Matrix.create(3, // rows 2, 1, -3, 0, 4, -1).multiply(Matrix.create(2, // rows 5, -1, 6, -3, 0, 7))); }