Talk:7 (number)
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In U.S. Marine Corps folklore, the rank E-7, Gunnery Sergeant, is considered lucky. A "gunny" can't get in trouble with his superiors for anything. That changes as soon as he's promoted. 141.217.41.206 17:06, 22 Jan 2004 (UTC)
Digital display
Also 6 (number) has two representations in digital displays, with a top bar or not.
- This claim was briefly on the 7 (number) page, but was reverted. If it is a fact (I don't know for sure), it should be on the 6 (number) page too, and the 7 (number) page should not claim that 7 is the only number with two glyphs.--Niels Ø 21:16, Mar 15, 2005 (UTC)
- I'm sorry, I tried to post to this page immediately after I reverted the article, but Wikipedia suffered a glitch.
- Anyway, I wouldn't mind being proven wrong on this. Tell me which brands of products with LCD displays use the variant 6, or show me pictures. I have never seen the variant 6. As far as I know today, 6 has only one LCD glyph, crudely shown below. PrimeFan 22:10, 15 Mar 2005 (UTC)
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- I guess you are right.--Niels Ø 22:56, Mar 15, 2005 (UTC)
- I can't remember where I have seen such a thing, but I found Calculator Memories from Argentina (http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/memories.cgi?read=22):
- About mid 1972, I read an article in Popular Mechanics magazine, featuring several four function pocket calculators. I recall a Canon unit, and the Casio Mini 6, which had a six-digits green display and a "right arrow" key that shifted the contents of the display to show six more digits. LED and Fluorescent displays were usual (no LCD yet), and NiCd batteries were almost mandatory. Some models sported modified seven–segment patterns to make the digits recognizable, even when a segment fails. The picture (http://www.hpmuseum.org/guest/rodsegs1.gif)
- Versions of 0 , 6 and 7 used to make the patterns for all 10 digits to differ on more than a single segment.
- I can imagine an alternate 1 on the left vertical, but am not sure if it is real.
- So I'd remove the claim and put the alternate forms in the article for seven-segment display if we have one.
- I can't remember where I have seen such a thing, but I found Calculator Memories from Argentina (http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/memories.cgi?read=22):
- I stand corrected. I will edit the articles on 0, 6 and 7 accordingly. PrimeFan 17:35, 17 Mar 2005 (UTC)
- There is a reason why the alternate 0 and 6 haven't caught on. Alt 0 looks like a lowercase O, and alternate 6 looks like a lowercase B. Anton Mravcek 19:44, 17 Mar 2005 (UTC)