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[-] GnomeKat@lemmy.blahaj.zone 46 points 9 months ago

Putting things in base 10 is also a definition. Digits aren't special.

[-] h3ndrik@feddit.de 27 points 9 months ago* (last edited 9 months ago)

Was going to say the same. Also π isn't infinite. Far from it. it's not even bigger than 4. It's representation in the decimal system is just so that it can't be written there with a finite number of decimal places. But you could just write "π". It's short, concise and exact.

And by that definition 0.1 is also infinite... My computer can't write that with a finite amount of digits in base 2, which it uses internally.

So... I'm crying salty tears, too.

[Edit: And we don't even need transcendental numbers or other number systems. A third also doesn't have a representation. So again following the logic... you can divide a cake into 5 pieces, but never into 3?!]

[-] DrSteveBrule@mander.xyz 4 points 9 months ago

Can pi be expressed with a finite amount of digits in another number system?

[-] Donjuanme@lemmy.world 21 points 9 months ago

How about a pi based system, then pi is 1.

[-] 33550336@lemmy.world 1 points 9 months ago

Possible, but then the diameter would be an irrational number

[-] Solemn@lemmy.dbzer0.com 10 points 9 months ago

I don't think there's any technical reason we can't count in base pi

[-] lolcatnip@reddthat.com 2 points 9 months ago

I'm pretty happy with being able to write integers in a finite number of digits. Wouldn't want to give that up.

[-] mexicancartel@lemmy.dbzer0.com -1 points 9 months ago

Well we need an integer base number system....

[-] Solemn@lemmy.dbzer0.com 8 points 9 months ago

"A base is usually a whole number bigger than 1, although non-integer bases are also mathematically possible."

https://simple.m.wikipedia.org/wiki/Base_(mathematics)

[-] mexicancartel@lemmy.dbzer0.com 1 points 9 months ago
[-] Solemn@lemmy.dbzer0.com 1 points 9 months ago

Not if you're mainly interested in counting multiples of pi.

[-] mexicancartel@lemmy.dbzer0.com 1 points 9 months ago

nπ is much better

[-] lolcatnip@reddthat.com 0 points 9 months ago* (last edited 9 months ago)

Not sure where you're going with the decimal thing. Pi had infinite digits in any integer base because it's irrational.

[-] h3ndrik@feddit.de 1 points 9 months ago* (last edited 9 months ago)

I thought that was the joke in the comic? That we can't know numbers exactly that have an infinite decimal expansion. That'd be true for some rational numbers like a third, if you change the basis of the numeral system it'd be different numbers. And irrational numbers too if you have a integer base. But I'd argue how we write down a number isn't what determines exactness or 'infinity' by the words of the comic.

this post was submitted on 14 Mar 2024
670 points (93.1% liked)

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