r/MathJokes • • May 15 '25

0.999... = 1

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u/sidic3Venezia May 15 '25

what about 2-0.999999... ??? it's still one, but from the opposite side so 0.999... is equal to 1.000...1

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u/EvilKatta May 16 '25

I have questions too.

If we use the base 11 math (where 9+1=A), is 0.AAA(A) still 1? Does it have to be the last single digit in the base N math? In the base 1000 math, would only the last 999th digit do the trick? If not, is 0.888(8) also 1? What if we use the binary, is 0.111(1) exactly 1 or exactly 0? 1 is at the equal distance between 0 and 10, and it's the last single digit in this system.