3 ms·

Though you could treat it as an infinite series in a similar way: 0.9 -> 0.99 -> 0.999 -> ... -> ? 0.1 -> 0.01 -> 0.001 -> ... -> ?

• jonsen 7y ago
  The first is an infinite series: 9/10 + 9/100 + 9/1000 + ... + 9/10^n + ... The second is not?!
  • deleted 7y ago
    [deleted]
  • oconnor663 7y ago
    I mean you could if you want to: 1/10 + -9/100 + -9/1000 + -9/10000 + ... But I just meant them as series, not necessarily as sums.
    • jonsen 7y ago
      Or 1 - 9/10 - 9/100 - ... or 1 - ( 9/10 + 9/100 + ... ) So it becomes circular: 0.00...1 = 1 - 0.999... (In math a series is a sum: https://en.m.wikipedia.org/wiki/Series_(mathematics) https://en.m.wikipedia.org/wiki/Series_(mathematics)
      • oconnor663 7y ago
        Woops, you're totally right, I think I should've said "sequence".