The number of digits in an Integer is the number of numbers in some base (usually 10) required to
represent it. The numbers 1 to 9 are therefore single digits, while the numbers 10 to 99 are double digits. Terms such as
``double-digit inflation'' are occasionally encountered, although this particular usage has thankfully not been needed in
the U.S. for some time. The number of (base 10) digits in a number can be calculated as

where is the Floor Function.

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1999-05-24