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On Fri, 8 Sep 2017 05:15 am, Stefan Ram wrote: > It computing newsgroups, for example, people > ask about how to compute the number of digits > of a number, when, actually, only numerals > (representations of numbers in a particular > numeral system) have digits. Um, yes? That's implicit in the question -- and generally the numeral system in question is implied to be 10. Context is important. But for what it's worth, if you take a random number from the Reals, then the answer will be "infinite digits" for Almost All[1] numbers, no matter what number base you are using. A harder question is, what if you take a random number from the Integers? How many digits will it have in (say) base 10? I don't have a good answer to that. I think it may be ill-defined. [1] https://en.wikipedia.org/wiki/Almost_all -- Steve ?Cheer up,? they said, ?things could be worse.? So I cheered up, and sure enough, things got worse.

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