Math H C

//Declaration: long int lroundf(float arg); 
               long int lround(double arg); 
               long int lroundl(long double arg);  
 
// Values precisely between two values, such as 3.5, are rounded up.


  
  #include 
  #include 
  int main(void)
  {
    double val = 1.0;
    do {
      printf("%f %f\n", val, lround (val));
      val++;
    } while (val<11.0);
    return 0;
  }
         
/*
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*/