private void LosujDoWektoraJedynkowego_Click(object sender, EventArgs e)
        {
            double suma, Ax;
            Random R = new Random();

            for (int i = 1; i <= RozmiarTablicy; i++)
            {
                suma = 0;
                for (int j = 1; j <= RozmiarTablicy; j++)
                {
                    Ax = R.Next(1, 10);
                    if (i != j)
                    {
                        dataGridView1[j - 1, i - 1].Value = Ax.ToString();
                        suma += Ax;
                    }
                    else
                    {
                        dataGridView1[j - 1, i - 1].Value = (10.0 * Ax).ToString();
                        suma += 10.0 * Ax;
                    }
                }

                dataGridView3[0, i - 1].Value = suma.ToString();
            }
        }