Question

Write a 'C' program to evaluate a given polynomial using function. (Use array).
​

Answer 1

Answer:

void main()

{

int a[10],n,x,i,e;

clrscr();

printf(“\n\nENTER THE DEGREE OF POLYNOMIAL\n\n”);

scanf(“%d”,&n);

printf(“\n\nENTER THE CO-EFFICIENT OF POLYNOMIAL\n\n”);

for(i=n;i>=0;i–)

{

printf(“\n\nCO-EFFICIENT OF A[%d]:-\t “,i);

scanf(“%d”,&a[i]);

}

printf(“\n\nENTERED POLYNOMAIL IS \n\n”);

for(i=n;i>0;i–)

{

if(a[i]!=0)

{

printf(“%dX^%d+”,a[i],i);

}

}

printf(“%d”,a[i]);

printf(“\n\nENTER THE VALUE FOR X”);

scanf(“%d”,&x);

e=eval(a,n,x);

printf(“\nEvaluation of Poly is \t %d”,e);

getch();

}

int eval(int a[],int n,int x)

{

int sum=0,i;

for(i=n;i>=0;i–)

{

sum=sum+a[i]*pow(x,i);

}

return sum;

}

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