private void button1_Click(object sender, EventArgs e)
{
string temp = textBox1.Text;
int Bound = (int)Math.Pow(2, 15);
string[] temp2 = temp.Split('.');
if (long.Parse(temp2[0]) > Bound)
{
textBox2.Text = "overflow";
return;
}
string Ans1;
if (temp2[0][0] == '-')
{
Ans1 = Convert.ToString(int.Parse(temp2[0].Substring(1, temp2[0].Length - 1)), 2);
}
else
{
Ans1 = Convert.ToString(int.Parse(temp2[0]), 2);
}
if (Ans1.Length > 15)
{
textBox2.Text = "overflow";
return;
}
Ans1 = Ans1.PadLeft(15, '0');
if (temp2[0][0] == '-')
{
Ans1 = "1" + Ans1;
}
else
{
Ans1 = "0" + Ans1;
}
if (temp2.Count() > 1)
{
double p = 0;
string Ans2 = "";
double tempdouble = double.Parse(temp2[1]);
p = Math.Pow(10, temp2[1].Length);
for (int i = 0; i < 8; i++)
{
tempdouble *= 2;
Ans2 += (int)(tempdouble / p);
tempdouble %= p;
}
textBox2.Text = Ans1 + "." + Ans2;
}
else
{
textBox2.Text = Ans1;
}
}
}//private void AdjustDataGridViewSizing()
private void button5_Click(object sender, EventArgs e)// [Truth table]
{ // Create an unbound DataGridView by declaring a column count.
dataGridView1.ColumnCount = 5;
dataGridView1.ColumnHeadersVisible = true;
AdjustDataGridViewSizing();
// Set the column header style.
DataGridViewCellStyle columnHeaderStyle = new DataGridViewCellStyle();
columnHeaderStyle.BackColor = Color.Aqua;
columnHeaderStyle.Font = new Font("Verdana", 10, FontStyle.Bold);
dataGridView1.ColumnHeadersDefaultCellStyle = columnHeaderStyle;
// Set the column header names.
dataGridView1.Columns[0].Name = "A";
dataGridView1.Columns[1].Name = "B";
dataGridView1.Columns[2].Name = "A && B";
dataGridView1.Columns[3].Name = "A || B";
dataGridView1.Columns[4].Name = "!A";
// Populate the rows.
bool A, B, Ans1, Ans2, Ans3;
//
A = true; B = true; Ans1 = A && B; Ans2 = A || B; Ans3 = !A;
string[] row1 = new string[] { A.ToString(), B.ToString(), Ans1.ToString(), Ans2.ToString(), Ans3.ToString() };
A = true; B = false; Ans1 = A && B; Ans2 = A || B; Ans3 = !A;
string[] row2 = new string[] { A.ToString(), B.ToString(), Ans1.ToString(), Ans2.ToString(), Ans3.ToString() };
A = false; B = true; Ans1 = A && B; Ans2 = A || B; Ans3 = !A;
string[] row3 = new string[] { A.ToString(), B.ToString(), Ans1.ToString(), Ans2.ToString(), Ans3.ToString() };
A = false; B = false; Ans1 = A && B; Ans2 = A || B; Ans3 = !A;
string[] row4 = new string[] { A.ToString(), B.ToString(), Ans1.ToString(), Ans2.ToString(), Ans3.ToString() };
//
object[] rows = new object[] { row1, row2, row3, row4 };
foreach (string[] rowArray in rows)
{
dataGridView1.Rows.Add(rowArray);
}
//
// Set the row header style.
DataGridViewCellStyle rowHeaderStyle = new DataGridViewCellStyle();
rowHeaderStyle.BackColor = Color.Lime;
rowHeaderStyle.Font = new Font("Verdana", 7, FontStyle.Italic);
dataGridView1.RowHeadersDefaultCellStyle = rowHeaderStyle;
//
dataGridView1.Rows[0].HeaderCell.Value = "a";
dataGridView1.Rows[1].HeaderCell.Value = "b";
dataGridView1.Rows[2].HeaderCell.Value = "c";
dataGridView1.Rows[3].HeaderCell.Value = "d";
//
dataGridView1.DefaultCellStyle.Font = new Font("Tahoma", 7);
}//private void button5_Click(object sender, EventArgs e)
private void btn_click(object sender, EventArgs e)
{
double A, B, C;
A = Convert.ToDouble(a.Text);
B = Convert.ToDouble(b.Text);
C = Convert.ToDouble(c.Text);
double Ans1, Ans2, va;
va = Math.Sqrt(B * B - 4 * A * C);
Ans1 = (-B + va) / (2 * A);
Ans2 = (-B - va) / (2 * A);
Ans.Text = " Ans1=" + Ans1.ToString("0.0#") + " Ans2=" + Ans2.ToString("0.0#");
}
