#define ACCURACY 0.0001                                     
                                                               
   main()                                                     
   {                                                           
       int n, count;                                           
       float x, term, sum;                                     
                                                               
       printf("Enter value of x:");                            
       scanf("%f", &x);                                        
                                                               
       n = term = sum = count = 1;                             
                                                               
       while (n <= 100)                                        
       {                                                       
          term = term * x/n;                                   
          sum = sum + term;                                    
          count = count + 1;                                   
          if (term < ACCURACY)                                 
             n = 999;                                          
          else                                                 
             n = n + 1;                                        
       }                                                       
                                                               
       printf("Terms = %d Sum = %f\n", count, sum);            
                                                               
   }                                                           
                                                               
   
    
                                                        
Output                                                     
                                                               
   Enter value of x:0                                          
   Terms = 2 Sum = 1.000000                                    
                              
   Enter value of x:0.1                                        
   Terms = 5 Sum = 1.105171                                    
                                                               
   Enter value of x:0.5                                        
   Terms = 7 Sum = 1.648720                                    
                                                               
   Enter value of x:0.75                                       
   Terms = 8 Sum = 2.116997                                    
                                                               
   Enter value of x:0.99                                       
   Terms = 9 Sum = 2.691232                                    
                                                               
   Enter value of x:1                                          
   Terms = 9 Sum = 2.718279