public void CheckUpdatingMatrix(double[,] array, double[,] expected)
{
var matrix = new MatrixSymmetric(array);
matrix.SetValue(1, 2, 1);
Assert.That(matrix.Values, Is.EqualTo(expected));
}
static void Main(string[] args)
{
var matrix1 = new MatrixSquare(3);
matrix1.SetValue(1, 0, 0);
var matrix2 = new MatrixSymmetric(3);
matrix2.SetValue(2, 1, 1);
var matrix3 = new MatrixDiagonal(3);
matrix3.SetValue(3, 1, 1);
}