+ assertNull(m2.d);
+ assertNull(m2.e);
+
+ /*
+ * now add d and e vectors and recopy
+ */
+ m1.d = Arrays.copyOf(in[2], in[2].length);
+ m1.e = Arrays.copyOf(in[4], in[4].length);
+ m2 = (Matrix) m1.copy();
+ assertNotSame(m2.d, m1.d);
+ assertNotSame(m2.e, m1.e);
+ assertEquals(m2.d, m1.d);
+ assertEquals(m2.e, m1.e);