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#include <conio.h>
#include <iostream.h>
#include <math.h>
class DT
{
private:
double a[20];// Mang chua cac he so da thuc a0,
a1,
int n ;// Bac da thuc
public:
void nhap();
void hienthi();
DT operator+(const DT &d2);
double operator^(double x);// Tinh gia tri da
thuc
};
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void DT::hienthi()
{
cout<<a[0]<<"X^0";
for (int i=1 ;i<= n ;++i)
cout<<"+"<< a[i] <<"X^"<<i ;
}
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#MPC
void DT::nhap()
{
cout << "Bac da thuc:";
cin >> n;
cout << "Nhap cac he so da thuc:" ;
for (int i=0 ;i<=n ;++i)
{
cout << "\n He so bac"<<i<<":" ;
cin >> a[i] ;
}
}
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DT DT::operator+(const DT &d2)
{
DT d;
int k,i;
k = (n > d2.n)?n:d2.n ;
for (i=0;i<=k ;++i)
if (i<=n && i<=d2.n)
d.a[i] = a[i] + d2.a[i];
else
if (i<=n)
d.a[i] =a[i];
else
d.a[i] = d2.a[i];
i = k;
while (i>0 && d.a[i]==0.0) i;
d.n=i;
return d ;
}
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double DT::operator^(double x)
{
double s=0.0 , t=1.0;
for (int i=0 ;i<= n ;++i)
{
s+= a[i]*t;
t *= x;
}
return s;
}
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#RPC
void main()
{
DT p,q,f;
double x,g;
clrscr();
cout <<"\n Nhap da thuc P :" ;p.nhap();
cout <<"\n Nhap da thuc Q :" ;q.nhap();
cout << "\n Nhap so thuc x :" ;cin >> x;
f = (p+q);
g = f^x;
cout << "\n Da thuc f ";
f.hienthi();
cout<<"\n x =" << x;
cout << "\n f(x) = "<<g;
getch();
}
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#include
Ngày đăng: 19/03/2014, 02:44
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