private void resetBtn_Click(object sender, EventArgs e)
{
textBox1.Text = "0";
textBox2.Text = "0";
dataGridView1.Rows.Clear();
dataGridView1.Columns.Clear();
dataGridView1.Refresh();
successLabel.Hide();
errorLabel.Hide();
dataGridView2.Rows.Clear();
dataGridView2.Columns.Clear();
dataGridView2.Refresh();
XtextBox.Clear();
YtextBox.Clear();
ZtextBox.Clear();
}
private void Solve1_Click(object sender, EventArgs e)
{
dataGridView2.Rows.Clear();
dataGridView2.Columns.Clear();
dataGridView2.Refresh();
XtextBox.Clear();
YtextBox.Clear();
ZtextBox.Clear();
errorLabel.Hide();
successLabel.Hide();
// Jordan Elimination
int rows = dataGridView1.Rows.Count;
int columns = dataGridView1.Columns.Count;
bool error = false;
for (int r = 0; r < rows; r++)
{
for (int c = 0; c < columns; c++)
{
if (dataGridView1.Rows[r].Cells[c].Value == null)
{
errorLabel.Show();
errorLabel.Text = "Error. Fill the cells";
error = true;
break;
}
}
}
if (!error)
{
double[,] matr = new double[rows, columns];
for (int r = 0; r < rows; r++)
{
for (int c = 0; c < columns; c++)
{
matr[r, c] = double.Parse(dataGridView1.Rows[r].Cells[c].Value.ToString());
}
}
int i, k, q;
double v;
for (q = 0; q < rows; q++)
{
v = matr[q, q];
for (k = 0; k < columns; k++)
{
matr[q, k] /= v;
}
for (i = q + 1; i < rows; i++)
{
v = matr[i, q];
for (k = q; k < columns; k++)
{
matr[i, k] = matr[i, k] - matr[q, k] * v;
}
}
}
for (q = 0; q < rows; q++)
{
for (i = 0; i < (rows - 1) - q; i++)
{
v = matr[i, (columns - 1) - q - 1];
for (k = columns - 1 - q - 1; k < columns; k++)
{
matr[i, k] = matr[i, k] - matr[(rows - 1) - q, k] * v;
}
}
}
for (int j = 0; j < columns; j++)
{
dataGridView2.Columns.Add((j + 1).ToString(), (j + 1).ToString());
}
for (int i1 = 0; i1 < rows; i1++)
{
dataGridView2.Rows.Add();
}
for (int r = 0; r < rows; r++)
{
for (int c = 0; c < columns; c++)
{
dataGridView2.Rows[r].Cells[c].Value = matr[r, c];
}
}
XtextBox.Text = matr[0, columns - 1].ToString();
YtextBox.Text = matr[1, columns - 1].ToString();
ZtextBox.Text = matr[2, columns - 1].ToString();
successLabel.Show();
successLabel.Text = "Success: Jordan Elimination";
}
}
