TE
科技回声
首页24小时热榜最新最佳问答展示工作
GitHubTwitter
首页

科技回声

基于 Next.js 构建的科技新闻平台,提供全球科技新闻和讨论内容。

GitHubTwitter

首页

首页最新最佳问答展示工作

资源链接

HackerNews API原版 HackerNewsNext.js

© 2025 科技回声. 版权所有。

U+237C ⍼ Right Angle with Downwards Zigzag Arrow

659 点作者 cbzbc大约 3 年前

42 条评论

firstcommentyo大约 3 年前
Dislosure: I&#x27;m not directly from the fields of the Sciences Of Angles And Ambiguously Crossing Lines nor I&#x27;ve every seen or used this symbol before. However to me it&#x27;s, pretty evidently, supposed to be a &quot;no right angle&quot; symbol.<p>(A) It&#x27;s in the math section, (B) it&#x27;s with angles, (C) the thunderbolt ↯ is commonly used for &quot;not&quot; or more specifically for dis-proof in this area and<p>(D) at least by my 30 s internet search on a mobile phone I couldn&#x27;t find any other &quot;no-angle&quot; or &quot;no-right-angle&quot; symbol.<p>Someone could argue that usually you use a simple strike through as like as in ≠ (unequal), ∉ (not-element-of) or ∅ (empty set) but I would say it was chosen to avoid confusion in this case. The angle itself (without the &quot;no&#x2F;not&quot;) consists of only to orthogonal lines so it would be kinda complicated to &quot;strike it though&quot; in any direction without ambiguity that would resemble a triangle, a fork or whatnot.<p>■
评论 #31015172 未加载
评论 #31015872 未加载
评论 #31016816 未加载
评论 #31014633 未加载
评论 #31014828 未加载
评论 #31014849 未加载
评论 #31014825 未加载
评论 #31022368 未加载
评论 #31018284 未加载
bamboozled大约 3 年前
These unicode characters feel like they were given to us from an alien species or something.<p>How did it we end up with so many characters of unknown origin?<p><i>I had no idea what it meant or was used for, thus assigned it a “descriptive name” when collating the symbols for the STIX project. (I still have no idea, nor can supply an example of the symbol in use.) […] it is the case that ISO 9573-13 existed long before either AFII or the STIX project were formed. […] I once asked Charles Goldfarb what the source of these entities was, but remember that he didn’t have a definitive answer.</i>
评论 #31013194 未加载
评论 #31013421 未加载
评论 #31016849 未加载
评论 #31014662 未加载
评论 #31017299 未加载
评论 #31013858 未加载
ghostoftiber大约 3 年前
(Edited to upload the image to imgur and avoid spammy advertisements).<p>Here I&#x27;ll date myself: I remember this as &quot;diode with a gate&quot;. Back when we did circuit diagrams with stencils, you had the diode stencil which looks like a triangle with a line on top, and then with the electrical stencils you had &quot;decorations&quot;.<p>The intention was to put down the original symbol on the paper, move the decorations stencil over top of it and then add the required decorations. It&#x27;s why diode symbols look like this: <a href="https:&#x2F;&#x2F;imgur.com&#x2F;a&#x2F;0tSLV7O" rel="nofollow">https:&#x2F;&#x2F;imgur.com&#x2F;a&#x2F;0tSLV7O</a> (notice &quot;step recovery diode&quot;).<p>The &quot;lightning bolt&quot; isn&#x27;t a lightning bolt, it&#x27;s a hint that this diode is going to have a very sharp &quot;snap off&quot; in the waveform. See: <a href="https:&#x2F;&#x2F;www.electronics-notes.com&#x2F;articles&#x2F;electronic_components&#x2F;diode&#x2F;step-recovery-diode-srd.php" rel="nofollow">https:&#x2F;&#x2F;www.electronics-notes.com&#x2F;articles&#x2F;electronic_compon...</a><p>OK so why do we have a seperate decorator for a diode? Can&#x27;t we just have a pocket full of stencils for diodes? Space was at a premium back then. It goes back to daisy wheels and typeballs: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Printer_(computing)#Impact_printers" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Printer_(computing)#Impact_pri...</a> You would have one position for &quot;diode&quot; and one position for &quot;decorator&quot; and the printer would know when it got one ASCII char it would print the diode, then send whatever the thin space is to advance the print carriage a small step, then print the decorator.<p>Someone should be able to find a daisy wheel or typeball dedicated to circuits and bear this out.
评论 #31018477 未加载
Someone大约 3 年前
I would think something like this:<p><pre><code> | | \ | \ | \ &#x2F;\ | \&#x2F; \ | \ | _\&#x2F; | +——————————————— </code></pre> Could (more or less) fit that description and would make more sense as a symbol. Something like it even made it into Unicode (<a href="https:&#x2F;&#x2F;emojipedia.org&#x2F;chart-decreasing&#x2F;" rel="nofollow">https:&#x2F;&#x2F;emojipedia.org&#x2F;chart-decreasing&#x2F;</a>)
评论 #31014504 未加载
评论 #31014982 未加载
评论 #31014969 未加载
评论 #31016454 未加载
slowmotiony大约 3 年前
I remember back in the day we used to find publicly exposed Windows FTP servers, create new folders using some messed up unicode characters and upload pirated games and movies there to share with each other. The only way to open those directories was to specifically type the exact path in unicode, simply double clicking on the folder in filezilla or windows explorer resulted in a error. Sometimes the admins themselves couldn&#x27;t delete them and just left them there. Good times.
评论 #31013396 未加载
评论 #31013816 未加载
评论 #31013443 未加载
评论 #31016045 未加载
评论 #31014117 未加载
评论 #31020364 未加载
ezoe大约 3 年前
There are some kanji scripts that has no record of existing usage in the JIS character encoding which was also incorporated to the Unicode. It&#x27;s called &quot;ghost character&quot; in Japanese.<p><a href="https:&#x2F;&#x2F;ja.wikipedia.org&#x2F;wiki&#x2F;%E5%B9%BD%E9%9C%8A%E6%96%87%E5%AD%97" rel="nofollow">https:&#x2F;&#x2F;ja.wikipedia.org&#x2F;wiki&#x2F;%E5%B9%BD%E9%9C%8A%E6%96%87%E5...</a>
评论 #31016101 未加载
jeffnappi大约 3 年前
The person who appears to have done the work of collecting this character (and others) for submission into the Unicode process back in 1997[0] (Barbara Beeton) has actually responded to the StackExchange question[1].<p>Unfortunately even she is not aware of what the symbol is actually for.<p>[0] <a href="https:&#x2F;&#x2F;www.ams.org&#x2F;STIX&#x2F;bnbranges.html" rel="nofollow">https:&#x2F;&#x2F;www.ams.org&#x2F;STIX&#x2F;bnbranges.html</a> [1] <a href="https:&#x2F;&#x2F;tex.stackexchange.com&#x2F;a&#x2F;640596" rel="nofollow">https:&#x2F;&#x2F;tex.stackexchange.com&#x2F;a&#x2F;640596</a>
primer42大约 3 年前
So Unicode has all these mysterious characters... but I would bet that it&#x27;s still true that many people on the planet speaking common languages can&#x27;t even type their name...<p>This post is from 2015, and I&#x27;d love to know if unicode has added better support for non-English languages since then.<p><a href="https:&#x2F;&#x2F;modelviewculture.com&#x2F;pieces&#x2F;i-can-text-you-a-pile-of-poo-but-i-cant-write-my-name" rel="nofollow">https:&#x2F;&#x2F;modelviewculture.com&#x2F;pieces&#x2F;i-can-text-you-a-pile-of...</a><p>Based on <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Bengali_(Unicode_block)" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Bengali_(Unicode_block)</a>, only 3 more Bengali characters have been added since 2015.
评论 #31014829 未加载
评论 #31016670 未加载
评论 #31016256 未加载
评论 #31014667 未加载
cheschire大约 3 年前
The name itself sounds like it should be a graph of a downward trend line on a graph.<p>I’m guessing the person who implemented it got this exact requirement wording in the Unicode definition and nothing else, didn’t make the logical connection, and just implemented it as close to literally as they could.
评论 #31013219 未加载
评论 #31014621 未加载
评论 #31013201 未加载
评论 #31013419 未加载
yreg大约 3 年前
I generally (perhaps naively) think that going forward knowledge loss won&#x27;t be much of an issue compared to our history.<p>Surely the archeologists of the future won&#x27;t have to wonder what some tool from our times was used for or what some symbol we currently use means… They will have Wikipedia and archive.org and whatnot!<p>But that fantasy is not compatible with reality where we are already unable to find out what is the purpose of some characters in Unicode.
评论 #31014241 未加载
评论 #31014133 未加载
评论 #31014155 未加载
评论 #31017696 未加载
kortex大约 3 年前
Wake up, first thing that pops into my head, &quot;I should check HN&quot; (normally it&#x27;s imgur, yeah bad habits).<p>Number one post is the Linking Sigil. Neat.<p>If you know, you know.<p>As for how a chaos magick symbol concocted in the 21st century ended up in a 1994 font spec, clearly discordians used the power of fnord to retcon it.
评论 #31014331 未加载
评论 #31014358 未加载
rich_sasha大约 3 年前
Might we run out of Unicode code points, like we (seem to) be running out of IPv4 addresses?<p>As another comment mentions, once you add all these snowmen, with&#x2F;without snow, male female and gender-neutral, in a few skin colour options (plus neutral)... it adds up. Plus, exponential growth once you consider family of snowmen (different number&#x2F;genders&#x2F;races of &quot;parents&quot;, different number&#x2F;gender&#x2F;races of &quot;children&quot; and so on...).
评论 #31013252 未加载
评论 #31013478 未加载
评论 #31013831 未加载
评论 #31013279 未加载
评论 #31013319 未加载
评论 #31013299 未加载
评论 #31025240 未加载
评论 #31013289 未加载
评论 #31013676 未加载
评论 #31015978 未加载
sj4nz大约 3 年前
I&#x27;ll propose that it could be the glyph to represent &quot;cutting corners&quot;:<p>&gt; To skip certain steps in order to do something as easily or cheaply as possible, usually to the detriment of the finished product or end result.
timonoko大约 3 年前
It is a proofreaders mark with languages with long words. The L-shape is &quot;Split the word here&quot; and same with arrow-squiggle on top is &quot;Do it at the next syllable or not at all&quot;. For example words &quot;YÖ-KLUBI&quot; and &quot;YÖK-LUBI&quot; have different meanings. Source: I have seen Finnish proofreaders marks.
评论 #31018468 未加载
AnthonBerg大约 3 年前
This symbol should be interpreted literally – it is of unknown meaning and origin. That’s what it means: “Of unknown meaning and origin”.
tarsinge大约 3 年前
And still no external link character, ridiculous.
评论 #31016142 未加载
abakker大约 3 年前
To me, it looks like a symbol you would use to denote electricity present. I&#x27;d say it was meant to say that an electrical box or some other piece of infrastructure had electricity present. It could even be a non-standard symbol for a ground.<p>edit: the right angle portion of it looks like the symbol for 3 wire 2 phase electricity used here - <a href="https:&#x2F;&#x2F;www.conceptdraw.com&#x2F;How-To-Guide&#x2F;qualifying-symbols" rel="nofollow">https:&#x2F;&#x2F;www.conceptdraw.com&#x2F;How-To-Guide&#x2F;qualifying-symbols</a> ..Yes, it is just a right angle. but I could see the electricity symbol being overlaid to indicate that it was an electrical symbol.
jason0597大约 3 年前
I still don&#x27;t understand why Unicode has all these obscure symbols but they <i>still</i> haven&#x27;t added all superscript&#x2F;subscript numbers and letters<p><a href="https:&#x2F;&#x2F;stackoverflow.com&#x2F;questions&#x2F;6638471&#x2F;why-does-the-unicode-superscripts-and-subscripts-block-not-contain-simple-sequen" rel="nofollow">https:&#x2F;&#x2F;stackoverflow.com&#x2F;questions&#x2F;6638471&#x2F;why-does-the-uni...</a><p>To quote a reply from the above StackOverflow thread: &quot;So, they added a snowman with snow AND a snowman without snow , so that the weather forecaster of this world can avoid the dull snowflake , but we will never get our missing superscript q‽&quot;
评论 #31013164 未加载
评论 #31013225 未加载
评论 #31013375 未加载
评论 #31014740 未加载
评论 #31013622 未加载
grandchild大约 3 年前
While I absolutely enjoyed the historical research on such a miniscule mystery, I also liked how it took me two clicks from the front page of HN into an occult eBook about &quot;khaos magick&quot;.<p>The things people write about...
kromem大约 3 年前
It looks like someone asked for a glyph that would look like a chart with a downward trending zigzag, someone ended up getting the instructions and drew this thing, and the request proceeded bunched with other requests through the process with no one adequately challenging that the glyph really looks like what it&#x27;s supposed to look like.<p>And yeah, actually a downward zig zag on a x&#x2F;y plot glyph would be useful to have.<p>Like &quot;chart with downwards trend&quot; added to Unicode 6.0 in 2010, 25 years after &quot;right angle with downward zig zag&quot; was proposed and included.
lizardactivist大约 3 年前
This is like the definition of legacy luggage. And somewhere there&#x27;s probably someone who will argue that if the symbol is not present in a typeface, then said typeface is not &quot;compliant&quot;.
aharris6大约 3 年前
According to today&#x27;s xkcd, this symbol means &quot;Larry Potter&quot;<p><a href="https:&#x2F;&#x2F;xkcd.com&#x2F;2606" rel="nofollow">https:&#x2F;&#x2F;xkcd.com&#x2F;2606</a>
评论 #31020160 未加载
bell-cot大约 3 年前
Guess: right-handedness (as in chirality, polarized light, spiral motion, etc.)
quickthrower2大约 3 年前
⍼
tlb大约 3 年前
Since it looks like a caduceus on a graph, I propose it as a symbol for ethical statisticians.
russellbeattie大约 3 年前
Eventually Unicode will think, &quot;Hey, <i>maybe</i> bold, italic and underline aren&#x27;t just decorative, but <i>required</i> formatting which <i>conveys emphasis</i>, and other information that needs to be contained within the text itself!&quot;<p>Or, maybe not and we&#x27;ll continue to lose formatting every time we copy and paste and be forced to use <i>plain text</i> for the rest of our lives. Also, we can color our emojis now, but that WARNING text can&#x27;t be in red. Because colors don&#x27;t matter?<p>Which ever person decided basic formatting shouldn&#x27;t be in the spec was wrong and we lose important details every day because of it.
pwdisswordfish9大约 3 年前
Someone show him U+29B0 REVERSED EMPTY SET.
评论 #31013098 未加载
评论 #31013891 未加载
评论 #31013049 未加载
teleforce大约 3 年前
It can be a symbol for polarization of electromagnetic (EM) waves, with Electrical and Magnetic fields moving orthogonal to each other [1].<p>Unlike other waves like sound waves, EM has polarization component.<p>In wireless communication, for example, polarization can be used as another component for diversity to increase the performance of the communication channel.<p>[1]<a href="https:&#x2F;&#x2F;www.microwaves101.com&#x2F;encyclopedias&#x2F;polarization" rel="nofollow">https:&#x2F;&#x2F;www.microwaves101.com&#x2F;encyclopedias&#x2F;polarization</a>
jjtheblunt大约 3 年前
AMS = American Mathematical Society last i subscribed. How the heck would someone surveying mathematicians not have found that?
评论 #31016050 未加载
评论 #31015103 未加载
tgorgolione大约 3 年前
This reminds me of the design used to denote a graph whose y axis does not start at 0:<p><a href="https:&#x2F;&#x2F;tex.stackexchange.com&#x2F;a&#x2F;79272" rel="nofollow">https:&#x2F;&#x2F;tex.stackexchange.com&#x2F;a&#x2F;79272</a>
herodotus大约 3 年前
&gt; And the inclusion of “AMS” in the names of the entity collections likewise remained mysterious.<p>Could this be The American Mathematical Society?
评论 #31014940 未加载
yablak大约 3 年前
Someone mentioned the lightning bolt means a contradiction so best guess is &quot;use the left-hand rule&quot;?
JulianMorrison大约 3 年前
That is a chaos magick linking sigil.
cm2187大约 3 年前
You will soon need a billion usd budget to implement a new font
dskloet大约 3 年前
From the title I thought this was about some Uranium isotope.
评论 #31015523 未加载
rackjack大约 3 年前
That rabbit hole of esotericism was pretty cool.
baruchel大约 3 年前
First thought was about Feynman diagrams :-(
SleekEagle大约 3 年前
Looks like a break in a graph axis
pfalke大约 3 年前
<a href="https:&#x2F;&#x2F;m.xkcd.com&#x2F;2606&#x2F;" rel="nofollow">https:&#x2F;&#x2F;m.xkcd.com&#x2F;2606&#x2F;</a> — mystery solved!
8ytecoder大约 3 年前
<a href="https:&#x2F;&#x2F;xkcd.com&#x2F;2606&#x2F;" rel="nofollow">https:&#x2F;&#x2F;xkcd.com&#x2F;2606&#x2F;</a><p>Now we have an XKCD for this.
em-bee大约 3 年前
i guess randall got inspired by this discussion: <a href="https:&#x2F;&#x2F;xkcd.com&#x2F;2606&#x2F;" rel="nofollow">https:&#x2F;&#x2F;xkcd.com&#x2F;2606&#x2F;</a>
reaperducer大约 3 年前
<i>no one knows what ⍼ is meant to represent</i><p>Translation: Nothing came up on a Google search, and going to the library and looking in a book is hard.<p>I see this more and more often these days. Bloggers claiming that there is no known origin for something, or inventing their own histories based on nothing more than internet searches.<p>The internet is vast, but 99.9% of the world&#x27;s history and information is not online for free.
评论 #31015607 未加载
评论 #31015620 未加载