private void DA(double[,] ar1)
{
MyMatrix matrix1 = new MyMatrix(ar1.GetLength(1), ar1.GetLength(0));
matrix1.Zapoln(firstDgv);
textBox1.Text = Convert.ToString(matrix1.Determinant(matrix1));
}
private void DB(double[,] ar2)
{
MyMatrix matrix2 = new MyMatrix(ar2.GetLength(1), ar2.GetLength(0));
matrix2.Zapoln(secondDgv);
textBox2.Text = Convert.ToString(matrix2.Determinant(matrix2));
}