Editor, Atom, Rust

I use and like Zotero and the one-click-save feature in Firefox is very convenient (IIRC, it takes a few minutes to set up though).

T = O(n) means that there exists a single constant k such that T < kn for all sufficiently large n. Therefore O(n!^2) is not the the same as O(n!), but for example both 10n!, 10000n!, n! + n^2 (note the plus) are O(n!).

Another way to think about this: suppose you believe that O(n) and O(n^2) are distinct. Now plug in only numbers that are factorials (2, 6, 24, …).

That is an excellent point…

Seems fake if the claim is that the realtor saw this at a showing, property, etc. You can see a stall divider in the upper left.