Editing Division by two (section)

==Decimal==
The following [[algorithm]] is for decimal. However, it can be used as a model to construct an algorithm for taking half of any number ''N'' in any [[even and odd numbers|even]] base.
*Write out ''N'', putting a zero to its left.
*Go through the digits of ''N'' in overlapping pairs, writing down digits of the result from the following table.

{| class="wikitable"
|-
! If first digit is
| Even || Even || Even || Even || Even
| Odd || Odd || Odd || Odd || Odd
|-
! And second digit is
| 0 or 1 || 2 or 3 || 4 or 5 || 6 or 7 || 8 or 9
| 0 or 1 || 2 or 3 || 4 or 5 || 6 or 7 || 8 or 9
|-
! Write
| 0 || 1 || 2 || 3 || 4
| 5 || 6 || 7 || 8 || 9
|}

Example: 1738/2=?

Write 01738. We will now work on finding the result.
* 01: even digit followed by 1, write 0.
* 17: odd digit followed by 7, write 8.
* 73: odd digit followed by 3, write 6.
* 38: odd digit followed by 8, write 9.
Result: 0869.

From the example one can see that [[0 is even]].

If the last digit of ''N'' is [[even and odd numbers|odd]] digit one should add 0.5 to the result.