[split] 0.999... equals 1

[fr0d0]

They aren't the same number because there's always a gap to infinity. They cannot meet.

Evidently you don't understand the concept of infinity if you think there are gaps. Infinity is limitless.

And limitlessly 'gappy' - otherwise it'd be 1

To infinity the gap gets smaller, but never ever converges. Or are you saying that it does converge?

Right - 'amount'. By their logic - I could give you 10,000 x 99p in exchange for your £10,000 and be £100 in profit. Wanna do some money exchanges?

99p is not an infinitely long number. Your example is complete nonsense, and not related to mine in any way since you do not use infinities.

So I rounded up. Isn't that what this is about?

Decimal numbers can't always be accurate. This proves it.

Decimal notation can write any kind of number. That is their purpose. All this proves is that you don't understand mathematical concepts like infinity.

I understand infinity perfectly well I think. I don't understand this for the reasons given. I find it interesting. the fat lady hasn't sung yet (unless I missed it! )

Pi is a decimal summation so is more accurate than 22/7

You just said decimals can't always be accurate, and you use the phrase "so is more accurate", meaning you know that decimals are more accurate (why say "so" otherwise). Either you accept that decimals are always accurate and accept the proof, or reject mathematics

"can't always" allows for "is more accurate" on occasion.