[split] 0.999... equals 1

[fr0d0]

Indeed... even "I" spotted that one

[Ephrium]

Mine was saying EVF kept saying MERELY because there is no number between them,x=y. The logic is flawed if you do not specify other conditions.

BTW, ihave multiplied 0.9r with numbers 1-9 and it all turns out correct, as in 0.9r x 2 = 1.9r etc. Further cementing 0.9r =1

[Edwardo Piet]

The fact there logically can't be a number in-between 9.r and 1 is not logically flawed. As I said, this doesn't apply to all numbers. There are many numbers between 5 and 6, 5.1, 5.2, 5.3, 5.4, etc, and all in-between.

EvF

[fr0d0]

Calculators LIE!!! LOL

[Ephrium]

I found a prove 0.999.... is not equal to 1!

0.9999.... squared =0.8...... Hence it cannot equal 1 since 1 squared is 1 !

EVF, read my originalpost. I said discrete number system, meaning no decimals.

[Edwardo Piet]

We are not talking about discrete number systems, as Adrian clarified for you. We are talking about all real numbers... and that includes decimal numbers.

I mean, we're even using 0.9r, of course...which is a decimal.

EvF

[Ephrium]

0.9999.... squared is in fact =0.89999..... so how can it equal 1

[Edwardo Piet]

Correct me if I'm wrong, but isn't 0.8999... 0.9? And not 0.9...?

EvF

[fr0d0]

How do you do that sum? 0.9...²‎ ?

How do you get a calculator to display 0.9... ?

[Edwardo Piet]

You'd need an infinitely long calculator!

EvF