sum using for loop in c
#include <stdio.h> #include <stdlib.h> #include <math.h> /* run this program using the console pauser or add your own getch, system("pause") or input loop */ int main(int argc, char *argv[]) { int x,i,n,num, f = 1; double k=3,e=2.71828; printf("Enter a number to calculate its factorial: "); scanf("%d", &x); for (x = 1; x <= n; x++){ f = f *x; } printf("enter number to calculate its probability: "); scanf("%d",&num); if (num=x,num<=10){ for (i=1;i<=num;i++){ double p=((pow(k,x))*(pow(e,-k)))/f; printf("The probability is %f\n",p);} } else { printf("this number is not between 1 to 10"); }