Write a program that calls a function to scale a real number
     Write a program that calls a function to scale a real number x into its scientific notation so that 1 lessthanorequalto x  
  
  Solution
#include <stdio.h>
void sci_notation(double *x, int *n); //prototype
 int main(){
     double x = 0.00025; //any random value
     int n = 0; //initializing n
sci_notation(&x, &n); //calling function
    printf(\"%f\", x);
     printf(\"\ %d\", n);
}
void sci_notation(double *x, int *n){
    while (*x>=10){ //loop if x>10
         *x = *x/10.0;
         *n = *n - 1;
     }
    while(*x<1){ //loop if x<1
         *x = *x * 10;
         *n = *n + 1;
     }
}

