This example creates a 3x3 matrix with random values using the `CreateRandom` method of the DenseMatrix class. The `using` statement at the beginning of the code importing the MathNet.Numerics.LinearAlgebra package library, which provides the DenseMatrix class. Example 2: Adding two DenseMatrix objectscsharp using MathNet.Numerics.LinearAlgebra; DenseMatrix matrix1 = DenseMatrix.CreateRandom(3, 3); DenseMatrix matrix2 = DenseMatrix.CreateRandom(3, 3); DenseMatrix result = matrix1 + matrix2; ``` This example creates two 3x3 matrices with random values using the `CreateRandom` method of the DenseMatrix class and then adds them together using the `+` operator. The result is a new DenseMatrix object containing the sum of the two matrices. Package Library: MathNet.Numerics.LinearAlgebra Both examples use the DenseMatrix class from the MathNet.Numerics.LinearAlgebra package library.