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Program to addition of two polynomial

Posted By: Easy Tutor     Category: C++ Programming     Views: 36400

Write a Program to addition of two polynomial.

Code for Program to addition of two polynomial in C++ Programming

//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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Easy Tutor
Easy Tutor author of Program to addition of two polynomial is from United States. Easy Tutor says

Hello Friends,

I am Free Lance Tutor, who helped student in completing their homework.

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Monica Kala from United States Comment on: Oct 10
plz..suggest a code for polynomial subtraction in c(Data structures)

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