CODECARTA

#include<stdio.h>
#include<conio.h>
void main()
{
  int i,a[i],m;
  clrscr();
   printf("enter the limit of array\n");
   scanf("%d",&m);
   printf("enter your array elements\n");
  
   for(i=0;i<m;i++)
  {
    scanf("%d",&a[i]);
  }
  printf("your array elements...\n");
  
   for(i=0;i<m;i++)
  {
    printf("%d\n",a[i]);
  }
 
getch();
}

Design, develop and execute a program in C to evaluate the given polynomial f(x)=a₄x⁴+a₃x³+a₂x²+a₁x+a₀

Program No:4
=============
 #include<stdio.h>
 #include<conio.h>

 void main() // Calling Main Function
  {
    float a[100],x,sum=0;
    int i,n;
    clrscr();

    printf("Enter the power of polinomial equation");
    scanf("%d",&n);

    printf("Enter the values of X \n");
    sanf("%f",&x);

    printf("enter the values for co-efficients \n");

    for(i=n;i>0;i--)
    {
      scanf("%f",&a[i]);
    }

    for(i=n;i>0;i--)
    {
     sum=(sum+a[i])*x;
    }
     sum=sum+a[0];
    printf("\n the values of f(%.2f) sum=%.2f",x,sum);


    getch();
  }
===========
Program Ends

 CLICKHERE! TO DOWNLOAD THIS PROGRAM

To more reference Wikipedia link
Screenshots:

/*Design develop and execute a program in C to find and output all the roots of a given quadratic equation,for non-zero co-efficient*/
CLICK HERE TO DOWNLOAD PROGRAM FILE ! 
Program No:1
===============
 #include<stdio.h>
 #include<conio.h>
 #include<process.h>
 #include<math.h>

 void main()
  {
    float a,b,c,d,real,img,real_value1,real_value2;
    clrscr();
    printf("enter the three values  for co-efficient a,b,c from quadratic eqn \n");
    scanf("%f%f%f",&a,&b,&c);
    printf(" a=%f \n b=%f \n c=%f \n ",a,b,c);

    if (a*b*c==0)
    {
      printf("Sorry! You can't Evaluate Equation \n");
      exit(0);
    }

    else
    {
      d=(b*b)-(4*a*c);

      if(d>0)
      {
    printf(" Roots for this Equation have Decimal Part \n");

    real_value1=-b+sqrt(d);
    real_value2=-b-sqrt(d);

    printf("Root 1 =%f \n Root 2 = %f \n",real_value1,real_value2);
      }
      else if(d<0)
      {
    printf("Root's Values are Complex \n");
    real=-b/(2*a);
    img=sqrt(fabs(d/(2*a)));

    printf("Root1= %f + i%f \n",real,img);
    printf("Root2= %f - i%f \n",real,img);
      }
      else
      {
    printf("Root1 and Root2 are equal \n");

    d=b/(2*a);

    printf("Root for quadratic equation is\n",d);
      }
  
    }
  getch();
 }
=============
Program Ends
To more reference:wikipedia link 


CLICK HERE TO DOWNLOAD PROGRAM FILE !
Screen Shot:


Note: this Program is given suitable form in TURBO C