Codes for 2 Symbols

If it is known that the current code identifies two symbols, any arbitrary number between 0.00 and 0.16 represents the character string "aa". The same rules apply to following examples:

Codes representing two symbols:

 Symbol   Interval     String
  0      [0.00; 0.16)    aa
  0.1    [0.00; 0.16)    aa
  0.14   [0.00; 0.16)    aa

  0.16   [0.16; 0.24)    ab
  0.2    [0.16; 0.24)    ab

  0.32   [0.32; 0.36)    ad
  0.34   [0.32; 0.36)    ad

  0.36   [0.36; 0.40)    ae
  0.399  [0.36; 0.40)    ae

On the basis of the decimal number system the character strings "aa" and "ab" could be encoded with one decimal position, "ac" and "ad" with two positions.

 <   ^   >