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Comment by NoahZuniga

15 hours ago

O(10^6) = O(1)

no, the "O" here is "on the order of", not Big O notation.

  • I believe NoahZuniga is perfectly aware of the intent and denouncing an abuse of (unneeded) notation.

  • What is "Big O" if not literally "order of"?

    • The O stands for "Ordnung", the German word for order. So it does literally mean that, except mathematicians think that the order of f(x)=1 is the same as the order of f(x)=10^6, because "clearly" f(x)=x gets way bigger than any constant function.

    • In physics "order of" means "approximately" using something like a taylor series, which typically start with a constant, then move to higher polynomial terms which add smaller and smaller corrections. Similar, but different, I think...