private void btnresult_Click(object sender, EventArgs e)
{
if (bans == true)
{
phansos[n - 1] = new Phanso(Convert.ToDouble(Tuso[n - 1].Text.Trim()), Convert.ToDouble(mauso[n - 1].Text.Trim()));
phansoNguyengoc[n - 1] = new Phanso(Convert.ToDouble(Tuso[n - 1].Text.Trim()), Convert.ToDouble(mauso[n - 1].Text.Trim()));
}
else
{
phansos[n - 1] = new Phanso(Convert.ToDouble(Tuso[n - 1].Text.Trim()), Convert.ToDouble(mauso[n - 1].Text.Trim()));
phansoNguyengoc[n - 1] = new Phanso(Convert.ToDouble(Tuso[n - 1].Text.Trim()), Convert.ToDouble(mauso[n - 1].Text.Trim()));
}
int l = KtraMausoBangKhong(phansos, n);
Phanso kq = KquaCongTru(phansos, a, n);
if (kq.Mauso != 0)
{
if (kq.Tuso * kq.Mauso > 0)//neu ca 2 cung la so am hoac duong
{
Math.Abs(kq.Tuso);
Math.Abs(kq.Mauso);
}
else if (kq.Mauso < 0 && kq.Tuso > 0)//neu 1 trong 2 la so am
{
kq.Mauso = kq.Mauso * (-1);
kq.Tuso = kq.Tuso * (-1);
}
kq = Doi(kq.Tuso) / Doi(kq.Mauso);//vi ham doi se tao ra 1 phan so moi, nen phai chia lai thi moi ra
ans = new Phanso(kq.Tuso, kq.Mauso);
if (kq.Tuso - (int)kq.Tuso == 0 && kq.Mauso - (int)kq.Mauso == 0)
{
double a = kq.UCLN(Math.Abs(kq.Tuso), Math.Abs(kq.Mauso));
ans = new Phanso(kq.Tuso / a, kq.Mauso / a);
}
textBox1.Text = ans.Tuso.ToString();
textBox2.Text = ans.Mauso.ToString();
btnClear.Enabled = true; bans = true;
}
else //mau so bang 0
{
MessageBox.Show("Có một hoặc nhiều phân số bằng không.", "Message", MessageBoxButtons.OK, MessageBoxIcon.Error);
//int l = KtraMausoBangKhong(phansos, n);
if (l >= 0)
{
mauso[l].Focus();
}
}
}
Phanso KquaCongTru(Phanso[] phanso, string[] ToanTu, int k)
{
Phanso kq = new Phanso();
KquaNhanChia(phanso, ToanTu, k);
kq = phanso[0];
int n = k;
for (int i = 0; i <= n; i++)
{
if (ToanTu[i] == "+")
{
phanso[i] = phanso[i + 1] + phanso[i];
kq = phanso[i];
// xoa vi tri so[i+1]
for (int j = i + 1; j < n; j++)
{
phanso[j] = phanso[j + 1];
}
//xoa dau i
for (int j = i; j < n; j++)
{
ToanTu[j] = ToanTu[j + 1];
}
i--;
n--;
}
else if (ToanTu[i] == "-")
{
phanso[i] = phanso[i] - phanso[i + 1];
kq = phanso[i];
// xoa vi tri so[i+1]
for (int j = i + 1; j < n; j++)
{
phanso[j] = phanso[j + 1];
}
//xoa dau i
for (int j = i; j < n; j++)
{
ToanTu[j] = ToanTu[j + 1];
}
i--;
n--;
}
}
return(kq);
}
public Phanso(Phanso ob)
{
tu = ob.tu;
mau = ob.mau;
}
private void btndiv_Click(object sender, EventArgs e)
{
if (bans == true)// tiep tuc thuc hien phep tinh moi
{
Coppy(phansoNguyengoc, phansos, ToanTuNguyengoc, a, n - 1);
PS = true;
button1.Enabled = true;
btnAdd.Enabled = false;
btnSub.Enabled = false;
btnMutipl.Enabled = false;
btndiv.Enabled = false;
lefttoright = lefttoright + 10;
TextBox operato = new TextBox();
this.Controls.Add(operato);
operato.Size = new Size(30, 30);
operato.Top = leftcontrol * 50;
operato.Left = lefttoright * (n + 10);
operato.Text = "/";
operato.TextAlign = HorizontalAlignment.Center;
operato.Font = new Font("Microsoft Sans Serif", 10);
lefttoright = lefttoright + 5;
a[n - 1] = "/";//day la phep chia
// phansos[n - 1] = new Phanso(Convert.ToDouble(textBox1.Text.Trim()), Convert.ToDouble(textBox2.Text.Trim()));
phansoNguyengoc[n - 1] = new Phanso(Convert.ToDouble(textBox1.Text.Trim()), Convert.ToDouble(textBox2.Text.Trim()));
ToanTuNguyengoc[n - 1] = "/";
}
else
{
PS = true;
button1.Enabled = true;
btnAdd.Enabled = false;
btnSub.Enabled = false;
btnMutipl.Enabled = false;
btndiv.Enabled = false;
lefttoright = lefttoright + 10;
TextBox operato = new TextBox();
this.Controls.Add(operato);
operato.Size = new Size(30, 30);
operato.Top = leftcontrol * 50;
operato.Left = lefttoright * (n + 10);
operato.Text = "+";
operato.TextAlign = HorizontalAlignment.Center;
operato.Font = new Font("Microsoft Sans Serif", 10);
lefttoright = lefttoright + 5;
a[n - 1] = "/";//day la phep chia
ToanTuNguyengoc[n - 1] = "/";
double[] b = new double[100];
string[] tt = new string[100];
double ts = 0;
double ms = 0;
if ((ktra(Tuso[n - 1].ToString()) == true) && (ktra(mauso[n - 1].ToString()) == true))//ca 2 cung co toan tu
{
convert(b, tt, Tuso[n - 1].Text.Trim());
ts = kqcongtru(b, tt);
convert(b, tt, mauso[n - 1].Text.Trim());
ms = kqcongtru(b, tt);
phansos[n - 1] = new Phanso(ts, ms);
phansoNguyengoc[n - 1] = new Phanso(ts, ms);
}
else if (ktra(Tuso[n - 1].ToString()) == true)//co toan tu o trong tu so
{
convert(b, tt, Tuso[n - 1].Text.Trim());
ts = kqcongtru(b, tt);
phansos[n - 1] = new Phanso(ts, Convert.ToDouble(mauso[n - 1].Text.Trim()));
phansoNguyengoc[n - 1] = new Phanso(ts, Convert.ToDouble(mauso[n - 1].Text.Trim()));
}
else if (ktra(mauso[n - 1].ToString()) == true)//co toan tu o trong mau
{
convert(b, tt, mauso[n - 1].Text.Trim());
ms = kqcongtru(b, tt);
phansos[n - 1] = new Phanso(Convert.ToDouble(Tuso[n - 1].Text.Trim()), ms);
phansoNguyengoc[n - 1] = new Phanso(Convert.ToDouble(Tuso[n - 1].Text.Trim()), ms);
}
else //ca 2 khong co toan tu
{
try
{
phansoNguyengoc[n - 1] = new Phanso(Convert.ToDouble(Tuso[n - 1].Text.Trim()), Convert.ToDouble(mauso[n - 1].Text.Trim()));
phansos[n - 1] = new Phanso(Convert.ToDouble(Tuso[n - 1].Text.Trim()), Convert.ToDouble(mauso[n - 1].Text.Trim()));
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK, MessageBoxIcon.Error);
Tuso[n - 1].Focus();
}
}
}
}
