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  1.  
  2.  
  3. # interest1 - compute compound interest
  4. #   input:    amount rate years
  5. #   output:    compounded value at the end of each year
  6.  
  7.     {
  8.         i = 1
  9.         while (i <= $3)
  10.         {
  11.         printf("Year %d\t%.2f\n", i, $1 * (1 + $2) ^ i)
  12.         i = i + 1
  13.         }
  14.     }
  15.