text: /* Exercise 1-4. Write a program to print the corresponding Celsius to
     Fahrenheit table. */
  
  #include <stdio.h>
  
  /* print Celsius-Fahrenheit table for celsius = -20, -10, ..., 150 */
  int main(void)
  {
      float fahr, celsius;
      int lower, upper, step;
  
      lower = -20;    /* lower limit of temperature scale */
      upper = 150;    /* upper limit */
      step = 10;      /* step size */
  
      printf("  C      F\n");
      celsius = lower;
      while (celsius <= upper) {
          fahr = (9.0/5.0) * celsius + 32.0;
          printf("%3.0f %6.1f\n", celsius, fahr);
          celsius = celsius + step;
      }
  }
  