public static long Tinh(BIEU_THUC P)
{
long kq = P.So_hang[0];
for (int i = 1; i < P.So_hang.GetLength(0); i++)
{
if (P.Toan_tu[i - 1] == TOAN_TU.Cong)
{
kq = kq + P.So_hang[i];
}
else
if (P.Toan_tu[i - 1] == TOAN_TU.Tru)
{
kq = kq - P.So_hang[i];
}
}
return(kq);
}
public static PHAN_SO Tinh(BIEU_THUC P)
{
PHAN_SO kq;
kq = P.So_hang[0];
for (int i = 1; i < P.So_hang.GetLength(0); i++)
{
if (P.Toan_tu[i - 1] == TOAN_TU.Cong)
{
kq = XL_PHAN_SO.Tong(kq, P.So_hang[i]);
}
else
if (P.Toan_tu[i - 1] == TOAN_TU.Tru)
{
kq = XL_PHAN_SO.Hieu(kq, P.So_hang[i]);
}
}
return(kq);
}
public static PHAN_SO Tinh_bieu_thuc(BIEU_THUC P)
{
PHAN_SO kq;
kq = P.So_hang[0];
for (int i = 1; i < P.So_hang.GetLength(0); i++)
{
if (P.Toan_tu[i - 1] == TOAN_TU.Cong)
{
kq = Tong_phan_so(kq, P.So_hang[i]);
}
else
if (P.Toan_tu[i - 1] == TOAN_TU.Tru)
{
kq = Hieu_phan_so(kq, P.So_hang[i]);
}
}
return(kq);
}
public static String Chuoi(BIEU_THUC P)
{
String kq = "";
kq = kq + XL_PHAN_SO.Chuoi(P.So_hang[0]);
for (int i = 1; i < P.So_hang.GetLength(0); i++)
{
if (P.Toan_tu[i - 1] == TOAN_TU.Cong)
{
kq = kq + " + ";
}
else
if (P.Toan_tu[i - 1] == TOAN_TU.Tru)
{
kq = kq + " - ";
}
kq = kq + XL_PHAN_SO.Chuoi(P.So_hang[i]);
}
return(kq);
}
