void () { assertEquals(0.0, Matrix.create(3, 0, 0, 0, 1, 2, 3, 4, 5, 6).determinant()); // 1 zero row assertEquals(0.0, Matrix.create(3, 1, 1, 1, 1, 1, 1, 1, 2, 3).determinant()); // 2 equal rows assertEquals(0.0, Matrix.create(3, 1, 1, 1, 2, 2, 2, 1, 2, 3).determinant()); // 2 proportional rows }