Program adding two polynomials in C, add two polynomials using array

adding two polynomials in C, C Program to add two polynomials using array, adding two polynomials in C, Addition of 2 polynomials in C


#include
#include
#define MAX 10
struct term
{
int coeff;
int exp;
};
struct poly
{
struct term t[10];
int totalterms;
};
void initpoly(struct poly*);
void polycreate(struct poly*,int c,int e);
struct poly addpoly(struct poly,struct poly);
void display(struct poly);
void main()
{
struct poly p1,p2,p3;
clrscr();
initpoly(&p1);
initpoly(&p2);
initpoly(&p3);
polycreate(&p1,1,7);
polycreate(&p1,2,6);
polycreate(&p1,3,5);
polycreate(&p1,4,4);
polycreate(&p1,5,2);
polycreate(&p2,1,4);
polycreate(&p2,1,3);
polycreate(&p2,1,2);
polycreate(&p2,1,1);
polycreate(&p2,2,0);
p3=addpoly(p1,p2);
printf("\n First polynomial :\n ");
display(p1);
printf("\n Second polynomial :\n ");
display(p2);
printf("\n\n Resultant Polynomial :\n");
display(p3);
getch();
}
/* Initializes elements of struct poly */
void initpoly(struct poly *p)
{
int i;
p->totalterms=0;
for(i=0;i {
p->t[i].coeff=0;
p->t[i].exp=0;
}
}

/* Add the term of polynomial to the array t */
void polycreate(struct poly *p,int c,int e)
{
p->t[p->totalterms].coeff=c;
p->t[p->totalterms].exp=e;
(p->totalterms)++;
}

/* DISPLAY the polynomial equation */
void display(struct poly p)
{
int flag=0,i;
for(i=0;i {
if(p.t[i].exp != 0)
printf("%d x^%d + ",p.t[i].coeff,p.t[i].exp);
else
{
printf("%d",p.t[i].coeff);
flag=1;
}
}
if(!flag)
printf("\b\b");
}
/* ADD two polynomials p1 and p2 */
struct poly addpoly(struct poly p1,struct poly p2)
{
int i,j,c;
struct poly p3;
initpoly(&p3);
if(p1.totalterms>p2.totalterms)
c=p1.totalterms;
else
c=p2.totalterms;
for(i=0,j=0;i<=c;p3.totalterms++)
{
if(p1.t[i].coeff==0 && p2.t[j].coeff==0)
break;
if(p1.t[i].exp>=p2.t[j].exp)
{
if(p1.t[i].exp==p2.t[j].exp)
{
p3.t[p3.totalterms].coeff=p1.t[i].coeff + p2.t[j].coeff;
p3.t[p3.totalterms].exp=p1.t[i].exp;
i++;
j++;
}
else
{
p3.t[p3.totalterms].coeff=p1.t[i].coeff;
p3.t[p3.totalterms].exp=p1.t[i].exp;
i++;
}
}
else
{
p3.t[p3.totalterms].coeff=p2.t[j].coeff;
p3.t[p3.totalterms].exp=p2.t[j].exp;
j++;
}
}
return p3;
}



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History Of C..

In the beginning was Charles Babbage and his Analytical Engine, a machine
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Move forward more than 100 years, where the U.S. government in
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modern computer.
Meanwhile, over at the AT&T Bell Labs, in 1972 Dennis Ritchie was working
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