public void SparseRowMatrix_TestMultiply()
        {
            var    result       = sparseRowMatrix.Multiply(vector);
            Vector resultActual = new Vector(new double[] { 10, 9, 7, 10 });

            for (int i = 0; i < resultActual.Size; i++)
            {
                Assert.Equal(result[i], resultActual[i], 8);
            }
        }