private void btnSubmit_Click(object sender, EventArgs e)
{
if (questions.SelectedIndex == 0)
{
if (txtA.Text == "" && txtB.Text == "")
{
txtA.Text = "0.2";
txtB.Text = "0.3";
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
X0 = Convert.ToDouble(txtA.Text);
X1 = Convert.ToDouble(txtB.Text);
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant1(X1) * (X1 - X0)) / (ques.secant1(X1) - (ques.secant1(X0))))));
error = Math.Abs(Xn1 - X1);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
X0 = X1;
X1 = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant1(X1) * (X1 - X0)) / (ques.secant1(X1) - (ques.secant1(X0))))));
error = Math.Abs(Xn1 - X1);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", X0), string.Format("{0:0.000}", X1), string.Format("{0:0.000}", ques.secant1(X0)), string.Format("{0:0.000}", ques.secant1(X1)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
else
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
X0 = Convert.ToDouble(txtA.Text);
X1 = Convert.ToDouble(txtB.Text);
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant1(X1) * (X1 - X0)) / (ques.secant1(X1) - (ques.secant1(X0))))));
error = Math.Abs(Xn1 - X1);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
X0 = X1;
X1 = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant1(X1) * (X1 - X0)) / (ques.secant1(X1) - (ques.secant1(X0))))));
error = Math.Abs(Xn1 - X1);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", X0), string.Format("{0:0.000}", X1), string.Format("{0:0.000}", ques.secant1(X0)), string.Format("{0:0.000}", ques.secant1(X1)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
else if (questions.SelectedIndex == 1)
{
if (txtA.Text == "" && txtB.Text == "")
{
txtA.Text = "1.2";
txtB.Text = "1.3";
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
X0 = Convert.ToDouble(txtA.Text);
X1 = Convert.ToDouble(txtB.Text);
MessageBox.Show(X0.ToString());
MessageBox.Show(X1.ToString());
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant2(X1) * (X1 - X0)) / (ques.secant2(X1) - (ques.secant2(X0))))));
error = Math.Abs(Xn1 - X1);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
X0 = X1;
X1 = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant2(X1) * (X1 - X0)) / (ques.secant2(X1) - (ques.secant2(X0))))));
error = Math.Abs(Xn1 - X1);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", X0), string.Format("{0:0.000}", X1), string.Format("{0:0.000}", ques.secant3(X0)), string.Format("{0:0.000}", ques.secant3(X1)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
else
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
X0 = Convert.ToDouble(txtA.Text);
X1 = Convert.ToDouble(txtB.Text);
MessageBox.Show(X0.ToString());
MessageBox.Show(X1.ToString());
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant2(X1) * (X1 - X0)) / (ques.secant2(X1) - (ques.secant2(X0))))));
error = Math.Abs(Xn1 - X1);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
X0 = X1;
X1 = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant2(X1) * (X1 - X0)) / (ques.secant2(X1) - (ques.secant2(X0))))));
error = Math.Abs(Xn1 - X1);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", X0), string.Format("{0:0.000}", X1), string.Format("{0:0.000}", ques.secant3(X0)), string.Format("{0:0.000}", ques.secant3(X1)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
else if (questions.SelectedIndex == 2)
{
if (txtA.Text == "" && txtB.Text == "")
{
txtA.Text = "0.2";
txtB.Text = "0.3";
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
X0 = Convert.ToDouble(txtA.Text);
X1 = Convert.ToDouble(txtB.Text);
MessageBox.Show(X0.ToString());
MessageBox.Show(X1.ToString());
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant3(X1) * (X1 - X0)) / (ques.secant3(X1) - (ques.secant3(X0))))));
error = Math.Abs(Xn1 - X1);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
X0 = X1;
X1 = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant3(X1) * (X1 - X0)) / (ques.secant3(X1) - (ques.secant3(X0))))));
error = Math.Abs(Xn1 - X1);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", X0), string.Format("{0:0.000}", X1), string.Format("{0:0.000}", ques.secant3(X0)), string.Format("{0:0.000}", ques.secant3(X1)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
else
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
X0 = Convert.ToDouble(txtA.Text);
X1 = Convert.ToDouble(txtB.Text);
MessageBox.Show(X0.ToString());
MessageBox.Show(X1.ToString());
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant3(X1) * (X1 - X0)) / (ques.secant3(X1) - (ques.secant3(X0))))));
error = Math.Abs(Xn1 - X1);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
X0 = X1;
X1 = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", X1 - ((ques.secant3(X1) * (X1 - X0)) / (ques.secant3(X1) - (ques.secant3(X0))))));
error = Math.Abs(Xn1 - X1);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", X0), string.Format("{0:0.000}", X1), string.Format("{0:0.000}", ques.secant3(X0)), string.Format("{0:0.000}", ques.secant3(X1)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
else
{
MessageBox.Show("Select Question First", "Question Error", MessageBoxButtons.OKCancel);
}
}
private void btnSubmit_Click(object sender, EventArgs e)
{
if (questions.SelectedIndex == 4)
{
if (txtA.Text == "")
{
txtA.Text = "1.2";
Xo = Convert.ToDouble(txtA.Text);
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
if (Math.Abs(fix1.equation1_d(Xo)) < 1)
{
equation = "-3x^2";
MessageBox.Show(equation);
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix1.equation1(Xo)));
MessageBox.Show(Xn1.ToString());
error = Math.Abs(Xn1 - Xo);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xo = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix1.equation1(Xo)));
error = Math.Abs(Xn1 - Xo);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn1), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
else if (Math.Abs(fix1.equation2_d(Xo)) < 1)
{
equation = "(3-Xn)^1/3";
MessageBox.Show(equation);
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix1.equation2(Xo)));
MessageBox.Show(Xn1.ToString());
error = Math.Abs(Xn1 - Xo);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xo = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix1.equation2(Xo)));
error = Math.Abs(Xn1 - Xo);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn1), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
else
{
}
}
else if (questions.SelectedIndex == 0)
{
if (txtA.Text == "")
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
txtA.Text = "1";
Xo = Convert.ToDouble(txtA.Text);
if (Math.Abs(fix5.equation1_d(Xo)) < 1)
{
equation = "Sinx+10/10";
MessageBox.Show(equation);
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix5.equation1(Xo)));
MessageBox.Show(Xn1.ToString());
error = Math.Abs(Xn1 - Xo);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xo = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix5.equation1(Xo)));
error = Math.Abs(Xn1 - Xo);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn1), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
else
{
}
}
else if (questions.SelectedIndex == 1)
{
if (txtA.Text == "")
{
txtA.Text = "1";
Xo = Convert.ToDouble(txtA.Text);
if (Math.Abs(fix2.equation1_d(Xo)) < 1)
{
equation = "Sinx+10/10";
MessageBox.Show(equation);
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix2.equation1(Xo)));
MessageBox.Show(Xn1.ToString());
error = Math.Abs(Xn1 - Xo);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xo = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix2.equation1(Xo)));
error = Math.Abs(Xn1 - Xo);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn1), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
else
{
}
}
else if (questions.SelectedIndex == 3)
{
if (txtA.Text == "")
{
txtA.Text = "1";
Xo = Convert.ToDouble(txtA.Text);
if (Math.Abs(fix4.equation2_d(Xo)) < 1)
{
equation = "(100-X^2)^1/3";
MessageBox.Show(equation);
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix4.equation2(Xo)));
MessageBox.Show(Xn1.ToString());
error = Math.Abs(Xn1 - Xo);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xo = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix4.equation2(Xo)));
error = Math.Abs(Xn1 - Xo);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn1), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
}
else if (questions.SelectedIndex == 2)
{
if (txtA.Text == "")
{
txtA.Text = "1";
Xo = Convert.ToDouble(txtA.Text);
if (Math.Abs(fix3.equation1_d(Xo)) < 1)
{
equation = "(arctan(e^-x))";
MessageBox.Show(equation);
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix3.equation1(Xo)));
MessageBox.Show(Xn1.ToString());
error = Math.Abs(Xn1 - Xo);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xo = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", fix3.equation1(Xo)));
error = Math.Abs(Xn1 - Xo);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn1), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
}
else
{
MessageBox.Show("Select Question First", "Question Selection Error", MessageBoxButtons.OKCancel, MessageBoxIcon.Error);
}
}
private void btnSubmit_Click(object sender, EventArgs e)
{
if (questions.SelectedIndex == 0)
{
txtA.Text = "";
if (txtA.Text == "")
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
txtA.Text = "2.1";
Xo = Convert.ToDouble(txtA.Text);
Xn = Xo;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton1.fx(Xn) / (newton1.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xn = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton1.fx(Xn) / (newton1.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn), string.Format("{0:0.000}", newton1.fx(Xn)), string.Format("{0:0.000}", newton1.fxd(Xn)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
else
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
Xo = Convert.ToDouble(txtA.Text);
Xn = Xo;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton1.fx(Xn) / (newton1.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xn = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton1.fx(Xn) / (newton1.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn), string.Format("{0:0.000}", newton1.fx(Xn)), string.Format("{0:0.000}", newton1.fxd(Xn)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
else if (questions.SelectedIndex == 1)
{
txtA.Text = "";
if (txtA.Text == "")
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
txtA.Text = "1";
Xo = Convert.ToDouble(txtA.Text);
Xn = Xo;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton2.fx(Xn) / (newton2.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xn = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton2.fx(Xn) / (newton2.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn), string.Format("{0:0.000}", newton2.fx(Xn)), string.Format("{0:0.000}", newton2.fxd(Xn)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
else
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
Xo = Convert.ToDouble(txtA.Text);
Xn = Xo;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton2.fx(Xn) / (newton2.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xn = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton2.fx(Xn) / (newton2.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn), string.Format("{0:0.000}", newton2.fx(Xn)), string.Format("{0:0.000}", newton2.fxd(Xn)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
else if (questions.SelectedIndex == 2)
{
txtA.Text = "";
if (txtA.Text == "")
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
txtA.Text = "1";
Xo = Convert.ToDouble(txtA.Text);
Xn = Xo;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton3.fx(Xn) / (newton3.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xn = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton3.fx(Xn) / (newton3.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn), string.Format("{0:0.000}", newton3.fx(Xn)), string.Format("{0:0.000}", newton3.fxd(Xn)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
else
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
Xo = Convert.ToDouble(txtA.Text);
Xn = Xo;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton3.fx(Xn) / (newton3.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
if (i != 0)
{
Xn = Xn1;
Xn1 = Convert.ToDouble(string.Format("{0:0.000}", Xn - ((newton3.fx(Xn) / (newton3.fxd(Xn))))));
error = Math.Abs(Xn1 - Xn);
}
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", Xn), string.Format("{0:0.000}", newton3.fx(Xn)), string.Format("{0:0.000}", newton3.fxd(Xn)), Xn1.ToString(), string.Format("{0:0.000}", error));
}
else
{
break;
}
}
}
}
else
{
MessageBox.Show("Select Question First", "Question Selection Error", MessageBoxButtons.OKCancel, MessageBoxIcon.Error);
}
}
