private void buttonGauss_Click(object sender, EventArgs e)
{
// organizing difference table
dataGridViewDifferenceTable.Columns.Clear();
string[] nums = new string[] { "¹", "²", "³", "⁴", "⁵", "⁶", "⁷", "⁸", "⁹" };
for (int i = 0; i < dataGridViewGaussNodes.Rows.Count - 1; ++i)
{
dataGridViewDifferenceTable.Columns.Add(i.ToString(), "Δ" + (i == 0 ? "" : nums[i]) + "y");
}
dataGridViewDifferenceTable.Rows.Add(dataGridViewGaussNodes.Rows.Count - 1);
nodes.Clear();
values.Clear();
try
{
foreach (DataGridViewRow row in dataGridViewGaussNodes.Rows)
{
nodes.Add(double.Parse(row.Cells[0].Value.ToString()));
values.Add(double.Parse(row.Cells[1].Value.ToString()));
}
GaussForwardInterpolation f = new GaussForwardInterpolation(nodes.ToArray(), values.ToArray());
label2.Text = "Result: " + Math.Round(f.GaussInterpolation(double.Parse(textBox1.Text)), 3);
for (int i = 1; i < f.Diff_table.GetLength(0); i++)
{
for (int j = 0; j < f.Diff_table[i].Length; j++)
{
dataGridViewDifferenceTable.Rows[j].Cells[i - 1].Value = Math.Round(f.Diff_table[i][j], 4);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void buttonGauss_Click(object sender, EventArgs e)
{
// organizing difference table
dataGridViewDifferenceTable.Columns.Clear();
string[] nums = new string[] { "¹","²","³","⁴","⁵","⁶","⁷","⁸","⁹" };
for(int i = 0; i < dataGridViewGaussNodes.Rows.Count - 1; ++i)
{
dataGridViewDifferenceTable.Columns.Add(i.ToString(), "Δ" + (i == 0 ? "" : nums[i]) + "y");
}
dataGridViewDifferenceTable.Rows.Add(dataGridViewGaussNodes.Rows.Count - 1);
nodes.Clear();
values.Clear();
try
{
foreach (DataGridViewRow row in dataGridViewGaussNodes.Rows)
{
nodes.Add(double.Parse(row.Cells[0].Value.ToString()));
values.Add(double.Parse(row.Cells[1].Value.ToString()));
}
GaussForwardInterpolation f = new GaussForwardInterpolation(nodes.ToArray(),values.ToArray());
label2.Text = "Result: " + Math.Round(f.GaussInterpolation( double.Parse(textBox1.Text) ),3);
for (int i = 1; i < f.Diff_table.GetLength(0); i++)
{
for (int j = 0; j < f.Diff_table[i].Length; j++)
{
dataGridViewDifferenceTable.Rows[j].Cells[i - 1].Value = Math.Round(f.Diff_table[i][j], 4);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}