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xlop is still under construction.  In fact, xlop 0.2 is just a beta
release; xlop 0.3 will provide:

  * Full redefinition about internal number representation (faster
    and less memory space).
  * Some macros improved (\opprint, \opdisplay, \opput, ...).
  * New parameters (format=normal/sci/eng, carrymul,
    hyphen (multiline for very long numbers), fine division and
    multiplication control, ...)
  * Calculation on basis 2 to 36
    e.g. \opadd[style=text]{"2"11010}{"2"10010} will display
        11010 + 10010 = 101100
  * Support language (languages defined in babel, oldrussian, and
    babylon) e.g. \div[displayintermediary=all]{33}{2} displays

    language=  french         english

              33  | 2           16.5
             -2   |---         ______
             ---  | 16,5    2 ) 33
              13  |             20
             -12  |             --
             ---- |             13
               10 |             12
              -10 |             ----
              --- |              1.0
                0 |              1.0
                                 ---
                                   0
    Language define decimal separator, thousand separator, type of
    displayed multiplication, type of displayed division (Author knows
    3 types of multiplications and 2 types of divisions) .
  * High level functions (exp, log, sin, asin, sinh, argsin, (idem
    for cos, tan, and cot), sqrt, root).
  * last but not least, english documentation!