series

Q : Write a program to compute the following series:

x + x3 / 3! + x5/ 5! + …

To a given accuracy for x from 00 to 1800 in the steps of 100, use a inbuilt function FACT(n) to compute the factorial.

Solution : 

#include<stdio.h>

#include<conio.h>

int fact(int);

void main()

{

     int x,step,y,i;

     long double  f;

     clrscr();

     printf("Enter no of step for series>> ");

     scanf("%d",&step);

     printf("Enter value of X>> ");

     scanf("%d",&x);

     for(f=0,y=3,i=1;i<=step;i++)

     {

          f+=x*y/(float)fact(y);

          y+=2;

     }

     printf("X value after %d step is %f",step,f);

     getch();

}

int fact(int n)

{

     int m;

     for(m=1;n>0;n--)

          m=m*n;

     return(m);

}

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