Check out example codes for "polynomial operations using c++". It will help you in understanding the concepts better.

Code Example 1

``````//Addition of Two Polynomial

#include <iostream.h>
#include <iomanip.h>
#include <conio.h>

struct poly{
int coeff;
int pow;
poly *next;
};

class add2poly
{
poly *poly1, *poly2, *poly3;
public:
add2poly(){poly1=poly2=poly3=NULL;}
void addpoly();
void display();
};

void add2poly :: addpoly(){
int i,p;
poly *newl=NULL,*end=NULL;
cout<<"Enter highest power for x\n";
cin>>p;
//Read first poly
cout<<"\nFirst Polynomial\n";
for(i=p;i>=0;i--)
{
newl=new poly;
newl->pow=p;
cout<<"Enter Co-efficient for degree"<<i<<"::  ";
cin>>newl->coeff;
newl->next=NULL;
if(poly1==NULL)
poly1=newl;
else
end->next=newl;
end=newl;
}

//Read Second poly
cout<<"\n\nSecond Polynomial\n";
end=NULL;
for(i=p;i>=0;i--)
{
newl=new poly;
newl->pow=p;
cout<<"Enter Co-efficient for degree"<<i<<"::  ";
cin>>newl->coeff;
newl->next=NULL;
if(poly2==NULL)
poly2=newl;
else
end->next=newl;
end=newl;
}

//Addition Logic
poly *p1=poly1,*p2=poly2;
end=NULL;
while(p1 !=NULL && p2!=NULL){
if(p1->pow == p2->pow){
newl=new poly;
newl->pow=p--;
newl->coeff=p1->coeff + p2->coeff;
newl->next=NULL;
if(poly3==NULL)
poly3=newl;
else
end->next=newl;
end=newl;
}
p1=p1->next;
p2=p2->next;
}
}

void add2poly :: display(){
poly *t=poly3;
cout<<"\n\nAnswer after addition is : ";
while(t!=NULL){
cout.setf(ios::showpos);
cout<<t->coeff;
cout.unsetf(ios::showpos);
cout<<"X"<<t->pow;
t=t->next;
}
}

void main(){
clrscr();
add2poly obj;
obj.addpoly();
obj.display();
getch();
}``````

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