Tutorial 10 Computer Science

Question 2 (Ada error,cuba buat sendiri)

#include<stdio.h>
#include<math.h>
#include<stdlib.h>

void expo(double,int);
float fact(int);
int main()
{
    int n;
    double x;

    printf("ENTER THE VALUE OF X\n");
    scanf("%lf",&x);
    printf("ENTER THE NUMBER OF ITERATION\n");
    scanf("%d",&n);
    expo(x,n);
    return 0;
}

void expo(double x,int n)
{
    int i=0;
    double sum;

    sum=0.0;
        for(i=0;i<=n;i++)
        {
            sum+=(pow(x,i)/fact(i));
            printf("%d \nexp(%.3lf) = %.4lf\n\n",i,x,sum);
        }
        printf("FINAL \nexp( %.3lf ) = %.4lf\n",x,sum);
        printf("COMPARE WITH exp(x) from math.h\n");
        printf("===>exp(%.3lf) = %.4lf\n",x,exp(x));
}

float fact(int i)
{
    if(i==1)
    return 1;
    else
    return i*fact(i-1);
}

Question 3

#include<stdio.h>
#include<stdlib.h>
#include<math.h>

int S(int);
int main()
{

int n,ans;
printf("ENTER THE NUMBER OF ITERATIONS\n");
scanf("%d",&n);
ans=S(n);
printf("S(%d)=%d\n",n,ans);

return 0;
}

int S(int i)
{
    printf("Function call S(%d)\n",i);
    if(i==1)
    return 1;
    else
    return pow(i,3)+S(i-1);
}