Oh, it just feels like taking a simple, elegant idea and overgeneralizing it. But I haven't tracked them down in Wikipedia yet, so I'm not really entitled to an opinion.
I'll find the Numberphile video I found out about them in.
Here:
$$X + Y = Z$$
$$LaTeX$$
Okay, that's pretty cool. Especially the part about A4 paper. :~)
Did you know previously about the $$1:\sqrt2$$?
Don't post only LaTeX text for no reason, because it overloads my GPU.
Woah, how many centuries old is your GPU?
Its not, I'm just on a chromebook, or a Google bug allowing the webpage to overload my GPU
There was a time when I understood the entire European system of paper sizes (there are B sizes and C sizes as well as A sizes, with different ratios) because I read the Wikipedia article, but I'd long forgotten the details.
Here's a very good approximation of $$\phi$$:
113796925398360272257523782552224175572745930353730513145086634176691092536145985470146129334641866902783673042322088625863396052888690096969577173696370562180400527049497109023054114771394568040040412172632376
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70330367711422815821835254877183549770181269836358732742604905087154537118196933579742249494562611733487750449241765991088186363265450223647106012053374121273867339111198139373125598767690091902245245323403501