SUMMATION OF SINE SERIES

/ *  SUMMATION OF SINE SERIES  */

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main()

 {

    int x,n,t=1,i,j;

    double num,sum=0.0,r;

    long int deno;

    clrscr();

    printf("\n\t\tINPUT:");

    printf("\n\t\t------");

    printf("\n\t\tEnter the value for x:  ");

    scanf("%d",&x);

    printf("\n\t\tEnter the value for n:  ");

    scanf("%d",&n);

    printf("\n\t\tOUTPUT:");

    printf("\n\t\t-------");

    r=x*(3.14/180.0);

    printf("\n\t\tThe radius value for the given x value

                                            is:  %lf",r);

    for(i=1;i<=n;i+=2)

     {

       num=1.0;

       deno=1;

       for(j=1;j<=i;j++)

         {

           num=num*r;

           deno=deno*j;

         }

       sum=sum+num/deno*t;

       t=t*-1;

     }

    printf("\n\t\tThe value for sin %d is:  %lf",x,sum);

    printf("\n\t\tThe built-in value for given value is: 

                                             %lf",sin(r));

    getch();

  }

INPUT:

------

Enter the value for x:  30

Enter the value for n:  3

OUTPUT:

-------

The radius value for the given x value is:  0.523333

The value for sin 30 is:  0.499445

The built-in value for given value is:  0.499770