static void Main(string[] args)
{
int[,] coeff = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } };
int[,] coeff2 = { { 1, 0, 0 }, { 0, 1, 0 }, { 0, 0, 1 } };
IMatrix <int> matrixSq = new SquareMatrix <int>(coeff);
DiagonalMatrix <int> matrixD = new DiagonalMatrix <int>(coeff2);
IMatrix <int> matrix = matrixSq.AddMatrix(matrixD);
Console.WriteLine(matrix.GetStringMatrix());
string[,] str1 = { { "H", "i" }, { "Y", "O" } };
string[,] str2 = { { "Is", null }, { null, "strange" } };
SquareMatrix <string> strSq = new SquareMatrix <string>(str1);
DiagonalMatrix <string> strD = new DiagonalMatrix <string>(str2);
IMatrix <string> strMatrix = strD.AddMatrix(strSq);
foreach (var temp in strMatrix.GetMatrix())
{
Console.Write(temp + " ");
}
double[,] coeff3 = { { 1, 2, 3 }, { 2, 1, 4 }, { 3, 4, 1 } };
SymmetricMatrix <double> matrixSum = new SymmetricMatrix <double>(coeff3);
Console.ReadKey();
}
