this post was submitted on 19 Jan 2024
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Math Memes

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Memes related to mathematics.

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Kowalski, temperature analysis (sh.itjust.works)
submitted 8 months ago by sjmarf@sh.itjust.works to c/mathmemes@lemmy.blahaj.zone
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[–] theroastedtoaster@lemmy.world 140 points 8 months ago (2 children)

Fibonacci/Golden ratio = 1.618 Kilometres in 1 mile = 1.609

Conversion is off by less than 1%, not bad at all

[–] Evil_Shrubbery@lemm.ee 29 points 8 months ago (1 children)

Yeah, it's nice an mysterious the first moment you hear about this but all the romance is gone once you think about how it works.

[–] kogasa@programming.dev 20 points 8 months ago

By far the most complicated part is the fact that the ratio of successive terms in the Fibonacci sequence approaches a specific number (which happens to be the golden ratio, which happens to be close to the ratio of km/mi).

[–] Anticorp@lemmy.world 8 points 8 months ago (1 children)

Great, now I have two charts to memorize.

[–] Lux@lemmy.blahaj.zone 14 points 8 months ago (2 children)

You only have to memorize how the fibbonaci sequence works, which is just addind the previous 2 numbers together to get the next

[–] gandalf_der_12te@feddit.de 3 points 8 months ago (1 children)

You only have to memorize ...

and have a lot of computing power available.

That algorithm ain't running itself.

[–] akariii@lemmy.blahaj.zone 4 points 8 months ago

you're welcome

[–] Stretch2m@lemm.ee 3 points 8 months ago (1 children)

But we only get one number to convert. We don't know what the previous number is in the sequence without a chart up to that number.

[–] Aqarius@lemmy.world 2 points 8 months ago

The starting numbers are 1 and 1.

[–] don@lemm.ee 45 points 8 months ago (3 children)

“can can”

[–] Deebster@lemmy.ml 29 points 8 months ago (1 children)

[–] Carighan@lemmy.world 11 points 8 months ago (2 children)

Here's the sound missing in that gif.

[–] Ephera@lemmy.ml 1 points 8 months ago

That triangle solo, though.

[–] HonoraryMancunian@lemmy.world 1 points 8 months ago

That was fun

[–] can@sh.itjust.works 9 points 8 months ago

You rang?

[–] omgitsaheadcrab@sh.itjust.works 8 points 8 months ago (2 children)

Can you do the

[–] can@sh.itjust.works 3 points 8 months ago

I can

[–] casmael@lemm.ee 2 points 8 months ago

All I know is I can can the can can the only question is can a can can the can quick enough to can can the can can

[–] palordrolap@kbin.social 41 points 8 months ago (1 children)

Fun fact: If you have a scientific calculator (literal or app) but no other conversion tool available, the conversion factor between miles and kilometres is almost exactly ln 5. Disturbingly close in fact.

That's fewer keypresses than generating the Golden ratio or working out Fibonacci numbers. But if all you have is your head then, yeah, the Fibonacci trick is good enough in a pinch.

[–] BreadOven@lemmy.world 8 points 8 months ago

Wow, that's pretty cool. Thanks.

[–] Spzi@lemm.ee 27 points 8 months ago

There are many such ways to memorize conversion ratios. Admittedly, this one is particularly cool, since you can construct it from the fairly trivial fibonacci series. But I still feel, it's no replacement for the actual solution; get rid of imperial and adopt metric.

[–] kryptonianCodeMonkey@lemmy.world 15 points 8 months ago

That's actually very useful.