public void GetDiagonal() { DoubleMatrix a = new DoubleMatrix(2,2); a[0,0] = 1; a[0,1] = 2; a[1,0] = 3; a[1,1] = 4; DoubleVector b = a.GetDiagonal(); Assert.AreEqual(b[0], a[0,0]); Assert.AreEqual(b[1], a[1,1]); }