private void btnSubmit_Click(object sender, EventArgs e)
{
if (txtA.Text == "" && txtB.Text == "")
{
if (questions.SelectedIndex == 0)
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
for (int i = 0; i < 10; i++)
{
if (ques.bisection1(i) < 0 && ques.bisection1(i + 1) > 0)
{
a = i;
b = i + 1;
break;
}
}
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", a), string.Format("{0:0.000}", b), string.Format("{0:0.000}", (ques.bisection1(a))), string.Format("{0:0.000}", (ques.bisection1(b))), string.Format("{0:0.000}", c), string.Format("{0:0.000}", ques.bisection1(c)), string.Format("{0:0.000}", error));
if (ques.bisection1(a) * ques.bisection1(c) < 0)
{
b = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
else
{
a = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
}
else
{
break;
}
}
}
if (questions.SelectedIndex == 1)
{
for (int i = 0; i < 10; i++)
{
if (ques.bisection2(i) < 0 && ques.bisection2(i + 1) > 0)
{
a = i;
b = i + 1;
break;
}
}
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", a), string.Format("{0:0.000}", b), string.Format("{0:0.000}", (ques.bisection2(a))), string.Format("{0:0.000}", (ques.bisection2(b))), string.Format("{0:0.000}", c), string.Format("{0:0.000}", ques.bisection2(c)), string.Format("{0:0.000}", error));
if (ques.bisection2(a) * ques.bisection2(c) < 0)
{
b = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
else
{
a = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
}
else
{
break;
}
}
}
if (questions.SelectedIndex == 2)
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
for (int i = 0; i < 10; i++)
{
if (ques.bisection3(i) < 0 && ques.bisection3(i + 1) > 0)
{
a = i;
b = i + 1;
break;
}
}
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", a), string.Format("{0:0.000}", b), string.Format("{0:0.000}", (ques.bisection3(a))), string.Format("{0:0.000}", (ques.bisection3(b))), string.Format("{0:0.000}", c), string.Format("{0:0.000}", ques.bisection3(c)), string.Format("{0:0.000}", error));
if (ques.bisection3(a) * ques.bisection3(c) < 0)
{
b = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
else
{
a = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
}
else
{
break;
}
}
}
}
else
{
a = Convert.ToDouble(txtA.Text);
b = Convert.ToDouble(txtB.Text);
if (questions.SelectedIndex == 0)
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), a.ToString(), b.ToString(), ques.bisection1(a).ToString(), ques.bisection1(b).ToString(), c.ToString(), ques.bisection1(c).ToString(), error.ToString());
if (ques.bisection1(a) * ques.bisection1(c) < 0)
{
b = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
else
{
a = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
}
else
{
break;
}
}
}
if (questions.SelectedIndex == 1)
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), a.ToString(), b.ToString(), ques.bisection2(a).ToString(), ques.bisection2(b).ToString(), c.ToString(), ques.bisection2(c).ToString(), error.ToString());
if (ques.bisection2(a) * ques.bisection2(c) < 0)
{
b = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
else
{
a = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
}
else
{
break;
}
}
}
if (questions.SelectedIndex == 2)
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), a.ToString(), b.ToString(), ques.bisection3(a).ToString(), ques.bisection3(b).ToString(), c.ToString(), ques.bisection3(c).ToString(), error.ToString());
if (ques.bisection3(a) * ques.bisection3(c) < 0)
{
b = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
else
{
a = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
}
else
{
break;
}
}
}
}
}
private void btnSubmit_Click(object sender, EventArgs e)
{
if (txtA.Text == "" && txtB.Text == "")
{
if (questions.SelectedIndex == 0)
{
for (int i = 0; i < 10; i++)
{
if (regular1(i) < 0 && regular1(i + 1) > 0)
{
a = i;
b = i + 1;
break;
}
}
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
MessageBox.Show(a.ToString());
MessageBox.Show(b.ToString());
ctemp = Convert.ToDouble(string.Format("{0:0.000}", ((a * ques.regular1(b) - b * ques.regular1(a)) / (ques.regular1(b) - ques.regular1(a)))));
error = Math.Abs(ctemp);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", a), string.Format("{0:0.000}", b), string.Format("{0:0.000}", ques.regular1(a)), string.Format("{0:0.000}", ques.regular1(b)), ctemp.ToString(), string.Format("{0:0.000}", ques.regular1(ctemp)), string.Format("{0:0.000}", error));
if (ques.regular1(a) * ques.regular1(c) < 0)
{
b = ctemp;
c = Convert.ToDouble(string.Format("{0:0.000}", (a * ques.regular1(b) - ctemp * ques.regular1(a)) / (ques.regular1(b) - ques.regular1(a))));
error = Convert.ToDouble(string.Format("{0:0.000}", Math.Abs(c - ctemp)));
ctemp = c;
}
else
{
a = ctemp;
c = Convert.ToDouble(string.Format("{0:0.000}", (ctemp * ques.regular1(b) - b * ques.regular1(a)) / (ques.regular1(b) - ques.regular1(a))));
error = Convert.ToDouble(string.Format("{0:0.000}", Math.Abs(c - ctemp)));
ctemp = c;
}
}
else
{
break;
}
}
}
if (questions.SelectedIndex == 1)
{
for (int i = 0; i < 10; i++)
{
if (ques.regular2(i) < 0 && ques.regular2(i + 1) > 0)
{
a = i;
b = i + 1;
break;
}
}
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
MessageBox.Show(a.ToString());
MessageBox.Show(b.ToString());
ctemp = Convert.ToDouble(string.Format("{0:0.000}", ((a * ques.regular2(b) - b * ques.regular2(a)) / (ques.regular2(b) - ques.regular2(a)))));
error = Math.Abs(ctemp);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", a), string.Format("{0:0.000}", b), string.Format("{0:0.000}", ques.regular2(a)), string.Format("{0:0.000}", ques.regular2(b)), ctemp.ToString(), string.Format("{0:0.000}", ques.regular2(ctemp)), string.Format("{0:0.000}", error));
if (ques.regular2(a) * ques.regular2(c) < 0)
{
b = ctemp;
c = Convert.ToDouble(string.Format("{0:0.000}", (a * ques.regular2(b) - ctemp * ques.regular2(a)) / (ques.regular2(b) - ques.regular2(a))));
error = Convert.ToDouble(string.Format("{0:0.000}", Math.Abs(c - ctemp)));
ctemp = c;
}
else
{
a = ctemp;
c = Convert.ToDouble(string.Format("{0:0.000}", (ctemp * ques.regular2(b) - b * ques.regular2(a)) / (ques.regular2(b) - ques.regular2(a))));
error = Convert.ToDouble(string.Format("{0:0.000}", Math.Abs(c - ctemp)));
ctemp = c;
}
}
else
{
break;
}
}
}
if (questions.SelectedIndex == 2)
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
for (int i = 0; i < 10; i++)
{
if (ques.regular3(i) < 0 && ques.regular3(i + 1) > 0)
{
a = i;
b = i + 1;
break;
}
}
MessageBox.Show(a.ToString());
MessageBox.Show(b.ToString());
ctemp = Convert.ToDouble(string.Format("{0:0.000}", ((a * ques.regular3(b) - b * ques.regular3(a)) / (ques.regular3(b) - ques.regular3(a)))));
error = Math.Abs(ctemp);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", a), string.Format("{0:0.000}", b), string.Format("{0:0.000}", ques.regular3(a)), string.Format("{0:0.000}", ques.regular3(b)), ctemp.ToString(), string.Format("{0:0.000}", ques.regular3(ctemp)), string.Format("{0:0.000}", error));
if (ques.regular3(a) * ques.regular3(c) < 0)
{
b = ctemp;
c = Convert.ToDouble(string.Format("{0:0.000}", (a * ques.regular3(b) - ctemp * ques.regular3(a)) / (ques.regular3(b) - ques.regular3(a))));
error = Convert.ToDouble(string.Format("{0:0.000}", Math.Abs(c - ctemp)));
ctemp = c;
}
else
{
a = ctemp;
c = Convert.ToDouble(string.Format("{0:0.000}", (ctemp * ques.regular3(b) - b * ques.regular3(a)) / (ques.regular3(b) - ques.regular3(a))));
error = Convert.ToDouble(string.Format("{0:0.000}", Math.Abs(c - ctemp)));
ctemp = c;
}
}
else
{
break;
}
}
}
}
else
{
a = Convert.ToDouble(txtA.Text);
b = Convert.ToDouble(txtB.Text);
if (questions.SelectedIndex == 0)
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
ctemp = Convert.ToDouble(string.Format("{0:0.000}", ((a * Convert.ToDouble(string.Format("{0:0.000}", ques.regular1(b))) - b * Convert.ToDouble(string.Format("{0:0.000}", ques.regular1(a)))) / (Convert.ToDouble(string.Format("{0:0.000}", ques.regular1(b))) - Convert.ToDouble(string.Format("{0:0.000}", ques.regular1(a)))))));
error = Math.Abs(ctemp);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), string.Format("{0:0.000}", a), string.Format("{0:0.000}", b), string.Format("{0:0.000}", ques.regular1(a)), string.Format("{0:0.000}", ques.regular1(b)), ctemp.ToString(), string.Format("{0:0.000}", ques.regular1(ctemp)), string.Format("{0:0.000}", error));
if (ques.regular1(a) * ques.regular1(c) < 0)
{
b = ctemp;
c = Convert.ToDouble(string.Format("{0:0.000}", (a * ques.regular1(b) - ctemp * ques.regular1(a)) / (ques.regular1(b) - ques.regular1(a))));
error = Convert.ToDouble(string.Format("{0:0.000}", Math.Abs(c - ctemp)));
ctemp = c;
}
else
{
a = ctemp;
c = Convert.ToDouble(string.Format("{0:0.000}", (ctemp * ques.regular1(b) - b * ques.regular1(a)) / (ques.regular1(b) - ques.regular1(a))));
error = Convert.ToDouble(string.Format("{0:0.000}", Math.Abs(c - ctemp)));
ctemp = c;
}
}
else
{
break;
}
}
}
if (questions.SelectedIndex == 1)
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), a.ToString(), b.ToString(), ques.bisection2(a).ToString(), ques.bisection2(b).ToString(), c.ToString(), ques.bisection2(c).ToString(), error.ToString());
if (ques.bisection2(a) * ques.bisection2(c) < 0)
{
b = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
else
{
a = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
}
else
{
break;
}
}
}
if (questions.SelectedIndex == 2)
{
int row = dataGridView1.Rows.Count;
if (row > 0)
{
table.Rows.Clear();
}
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
for (int i = 0; i < 50; i++)
{
if (string.Format("{0:0.000}", error) != string.Format("{0:0.000}", 0.000))
{
table.Rows.Add((i + 1).ToString(), a.ToString(), b.ToString(), ques.bisection3(a).ToString(), ques.bisection3(b).ToString(), c.ToString(), ques.bisection3(c).ToString(), error.ToString());
if (ques.bisection3(a) * ques.bisection3(c) < 0)
{
b = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
else
{
a = c;
c = (a + b) / 2;
error = Math.Abs((b - a) / 2);
}
}
else
{
break;
}
}
}
}
}