Exemplo n.º 1
0
        public void SquareMatrixAccess()
        {
            double[]     x = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
            SquareMatrix V = CreateVandermondeMatrix(x);

            // check nullity
            Assert.IsTrue(V != null);

            // check dimension
            Assert.IsTrue(V.Dimension == x.Length);

            // check column
            ColumnVector c = V.Column(1);

            Assert.IsTrue(c.Dimension == x.Length);
            for (int i = 0; i < c.Dimension; i++)
            {
                Assert.IsTrue(c[i] == V[i, 1]);
                Assert.IsTrue(c[i] == x[i]);
            }

            // check row
            RowVector r = V.Row(0);

            Assert.IsTrue(r.Dimension == x.Length);
            for (int i = 0; i < r.Dimension; i++)
            {
                Assert.IsTrue(r[i] == V[0, i]);
                Assert.IsTrue(r[i] == 1.0);
            }

            // check clone
            SquareMatrix VC = V.Copy();

            Assert.IsTrue(VC == V);
            Assert.IsFalse(VC != V);

            // check independence of clone
            VC[0, 0] += 1.0;
            Assert.IsFalse(VC == V);
            Assert.IsTrue(VC != V);
        }