public static String Chuoi(PHAN_SO ps)
{
String kq;
kq = ps.Tu_so + "/" + ps.Mau_so;
return(kq);
}
public static String Chuoi(PHAN_SO M)
{
String kq;
kq = M.Tu_so + "/" + M.Mau_so;
return(kq);
}
public static String Chuoi_phan_so(PHAN_SO Ps)
{
String kq;
kq = Ps.Tu_so + "/" + Ps.Mau_so;
return(kq);
}
public static PHAN_SO Tich(PHAN_SO M, PHAN_SO N)
{
PHAN_SO kq;
kq.Tu_so = M.Tu_so * N.Tu_so;
kq.Mau_so = M.Mau_so * N.Mau_so;
return(kq);
}
public static PHAN_SO Hieu_phan_so(PHAN_SO M, PHAN_SO N)
{
PHAN_SO kq;
kq.Tu_so = M.Tu_so * N.Mau_so - N.Tu_so * M.Mau_so;
kq.Mau_so = M.Mau_so * N.Mau_so;
return(kq);
}
public static String Chuoi(ArrayList Ps)
{
String kq = "";
for (int i = 0; i < Ps.Count; i++)
{
PHAN_SO x = (PHAN_SO)Ps[i];
kq = kq + XL_PHAN_SO.Chuoi(x);
if (i < Ps.Count - 1)
{
kq = kq + Ky_tu_phan_cach;
}
}
return(kq);
}
public static String Chuoi_day_phan_so(ArrayList Ps)
{
String kq = "";
for (int i = 0; i < Ps.Count; i++)
{
PHAN_SO x = (PHAN_SO)Ps[i];
kq = kq + Chuoi_phan_so(x);
if (i < Ps.Count - 1)
{
kq = kq + ",";
}
}
return(kq);
}
public static QUAN_HE So_sanh(PHAN_SO M, PHAN_SO N)
{
QUAN_HE kq = QUAN_HE.Nho_hon;
long D;
D = M.Tu_so * N.Mau_so - M.Mau_so * N.Tu_so;
if (D < 0)
{
kq = QUAN_HE.Nho_hon;
}
else
if (D == 0)
{
kq = QUAN_HE.Bang_nhau;
}
else
if (D > 0)
{
kq = QUAN_HE.Lon_hon;
}
return(kq);
}