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Re:0.999...= 1 by barrkel on Tuesday April 28, 2020 @12:56PM (#23008943)
I expect mjd is thinking of irrational bases. The number might still be written as 10, in digits that look decimal.
Re:0.999...= 1 by samatman on Tuesday April 28, 2020 @03:47PM (#23011019)
Thank you! This thread is full of people insisting on something wrong because they were taught incorrectly; an irrational number is defined in terms of integer ratios for a reason.

It's not like those people haven't worked with an irrational base before, either! Radians have an irrational base. When we talk about 2π radians, or 1/4π radians, that's exactly what we're doing.

Re:0.999...= 1 by mjd on Tuesday April 28, 2020 @06:50PM (#23013063)
That is not what I meant at all. (My phrasing was unclear. Sorry for the confusion.) Jordi understood what I meant though.
Re:0.999...= 1 by barrkel on Friday May 01, 2020 @08:13PM (#23047809)
It was unclear; I understand rational numbers to be ratios, and irrationals to be inexpressible as fractions, and I see an almost direct connection between that and digital representation in rational bases, so it seemed deeply confusing to see a consequence of the definition of rationals being refuted. The only way out was an irrational base.