public void ToMatrixD() { double x = 23.4; double y = -11.0; double z = 0.0; double w = 0.3; VectorD v = new VectorD(new[] { x, y, z, w }); MatrixD matrix = v.ToMatrixD(); Assert.AreEqual(4, matrix.NumberOfRows); Assert.AreEqual(1, matrix.NumberOfColumns); Assert.AreEqual(x, matrix[0, 0]); Assert.AreEqual(y, matrix[1, 0]); Assert.AreEqual(z, matrix[2, 0]); Assert.AreEqual(w, matrix[3, 0]); }