public static Boolean Kiem_tra(String Chuoi)
{
Boolean kq = true;
try
{
String[] Chuoi_dong = Chuoi.Split(new char[] { Ky_tu_phan_cach_dong });
int So_dong = Chuoi_dong.Length;
int So_cot = Chuoi_dong[0].Split(new char[] { Ky_tu_phan_cach_cot }).Length;
for (int i = 0; i < So_dong; i++)
{
String[] Dong = Chuoi_dong[i].Split(new char[] { ',' });
for (int j = 0; j < So_cot; j++)
{
if (!XL_SO_THUC.Kiem_tra(Dong[j]))
{
kq = false;
break;
}
}
if (!kq)
{
break;
}
}
}
catch (Exception Loi)
{
kq = false;
}
return(kq);
}
public static DON_THUC Nhap()
{
DON_THUC kq;
kq.He_so = XL_SO_THUC.Nhap("Nhap he so: ");
kq.So_mu = XL_SO_NGUYEN.Nhap("Nhap so mu: ");
return(kq);
}
public static DIEM Nhap(String Ghi_chu)
{
DIEM kq;
XL_CHUOI.Xuat(Ghi_chu);
kq.x = XL_SO_THUC.Nhap("Hoanh do:");
kq.y = XL_SO_THUC.Nhap("Tung do:");
return(kq);
}
public static DON_THUC Nhap(String Ghi_chu)
{
DON_THUC kq;
XL_CHUOI.Xuat(Ghi_chu);
kq.He_so = XL_SO_THUC.Nhap("He so = ");
kq.So_mu = XL_SO_NGUYEN.Nhap("So mu = ");
return(kq);
}
public static PHUONG_TRINH_DUONG_THANG Nhap(String Ghi_chu)
{
PHUONG_TRINH_DUONG_THANG kq;
XL_CHUOI.Xuat(Ghi_chu);
kq.a = XL_SO_THUC.Nhap("Nhap a:");
kq.b = XL_SO_THUC.Nhap("Nhap b:");
kq.c = XL_SO_THUC.Nhap("Nhap c:");
return kq;
}
public static NHI_THUC Nhap(String Ghi_chu)
{
NHI_THUC kq;
XL_CHUOI.Xuat(Ghi_chu);
kq.a = XL_SO_THUC.Nhap("Nhap a : ");
kq.b = XL_SO_THUC.Nhap("Nhap b : ");
return(kq);
}
public static DUONG_TRON Nhap(String Ghi_chu)
{
DUONG_TRON kq;
XL_CHUOI.Xuat(Ghi_chu);
kq.I = XL_DIEM.Nhap("Toa do tam I cua duong tron:\n");
kq.R = XL_SO_THUC.Nhap("Nhap R:");
return(kq);
}
public static TAM_THUC Nhap(String Ghi_chu)
{
TAM_THUC kq;
XL_CHUOI.Xuat(Ghi_chu);
kq.a = XL_SO_THUC.Nhap("a=");
kq.b = XL_SO_THUC.Nhap("b=");
kq.c = XL_SO_THUC.Nhap("c=");
return(kq);
}
static void Main(string[] args)
{
ArrayList P;
Double x0;
Double kq;
P = XL_DA_THUC.Nhap("Nhap da thuc P(x):\n");
x0 = XL_SO_THUC.Nhap("Nhap x0 = ");
kq = XL_DA_THUC.Tinh_gia_tri(P, x0);
String Chuoi;
Chuoi = "Gia tri da thuc P(x)=" + XL_DA_THUC.Chuoi(P) + "\n";
Chuoi = Chuoi + "voi x0=" + x0 + " la :" + kq;
XL_CHUOI.Xuat(Chuoi);
}
public static void Main()
{
Double a;
Double b;
Double c;
a = XL_SO_THUC.Nhap("Canh goc vuong thu 1:");
b = XL_SO_THUC.Nhap("Canh goc vuong thu 2:");
c = Math.Sqrt(a * a + b * b);
String Chuoi;
Chuoi = "Tam giac voi 2 canh goc vuong la a=" + a;
Chuoi = Chuoi + " va b=" + b;
Chuoi = Chuoi + " co chieu dai canh huyen la c=" + c;
XL_CHUOI.Xuat(Chuoi);
}
public static void Main(string[] args)
{
DON_THUC P;
Double x0;
Double kq;
P = XL_DON_THUC.Nhap("Nhap don thuc:\n");
x0 = XL_SO_THUC.Nhap("Gia tri x0 = ");
kq = XL_DON_THUC.Tinh_gia_tri(P, x0);
String Chuoi = "Gia tri cua don thuc P(x)=";
Chuoi = Chuoi + XL_DON_THUC.Chuoi(P) + "\n";
Chuoi = Chuoi + "voi x0=" + x0;
Chuoi = Chuoi + " la " + kq;
XL_CHUOI.Xuat(Chuoi);
}
public static Boolean Kiem_tra(String Chuoi)
{
Boolean kq = true;
try
{
String[] M = Chuoi.Split(new char[] { Ky_tu_phan_cach });
for (int i = 0; i < M.Length; i++)
{
if (!XL_SO_THUC.Kiem_tra(M[i]))
{
kq = false;
break;
}
}
}
catch (Exception Loi)
{
kq = false;
}
return(kq);
}