posted by Katya @ 4:37 PM
The upside-down image of any of these three times on a seven-segment digital clock display is the same as the right-side-up image.
Yep! "Radially symmetrical" was the phrase I had in mind.
Or maybe that should have been "rotationally symmetrical." Anyway, you get the idea.
I knew--I KNEW--that you'd have a better term for it.
Ha! Well, I'm the one who thinks of these in the first place, so I get the most time to mull over them, I suppose. (In this case, I blearily looked at the alarm clock the other morning at 6:29 and thought "That time is the same upside-down." It was a small bright spot in an otherwise miserable morning.)
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