quizlet

[totient]

out of curiosity: anyone recognize the thing in my userpic?

Comments

Re: Bingo!

[crs.livejournal.com]

Even knowing what it is I can't see it. *squint* Which part of it is it?

[palmwiz.livejournal.com]

I took the photo from very close to one of the supports, looking up. The arch is triangular in cross-section with a vertex pointing in/down so that one could stand on the flat top of the arch (if one could somehow get up there). I'm standing a little off center so that only one face of the triangle is visible until well into the bend.