Jump to content

Talk:Mathematical Alphanumeric Symbols

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by Spitzak (talk | contribs) at 05:12, 13 October 2010 (→Testing the table with unicode2 template). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Letters showing up

has no one noticed the fact that none of the letters shown up??? --AeomMai 23:29, 10 April 2006 (UTC)[reply]

You need to have the correct fonts installed. —porges(talk) 03:23, 25 June 2006 (UTC)[reply]

Commercial at

dose anyone know what is the name in maths of (@) IS —Preceding unsigned comment added by Joeyjomanco (talk • contribs) 18:01, 13 February 2009 (UTC)[reply]

The "at sign" is typographically known as commat, as in "commercial at". A few years ago, it was assigned a morse code symbol, the first change in morse in a veryh long time. —Preceding unsigned comment added by 112.203.198.236 (talk) 08:23, 11 January 2010 (UTC)[reply]

Incorrect values for ℛ (U+211B SCRIPT CAPITAL R), etc

This article, as it currently exists, is not correct. It shows a script capital R in this unicode block (U+1D400 ... U+1D7FF), but there is no script capital R here. Instead, unicode has a script capital R elsewhere (at U+211B). The same is true for a variety of other characters (looking at Unicode code chart U1D400 (PDF), which is currently an external link but should be a reference, it looks like Swiss cheese). If we want to stick with presenting these characters by Unicode block, we should just take out all those characters. If we want to keep together related characters, we need to get rid of the numbers (or come up with some presentation which can show the numbers, which might be in a different block, somehow). Kingdon (talk) 18:21, 18 September 2010 (UTC)[reply]

Code point U+1D4AD 𝒭 <reserved-1D4AD> (is not assigned). The linked Unicode page (U1D400.pdf) says on page 7: <reserved>, meaning: not assigned (not a character). Then it refers specifically to {U+211B ℛ SCRIPT CAPITAL R (&realine;, &Rscr;). So the facts Kingdon writes are correct.
But I don't understand the bigness of the problem. Anyone can change the chart here. See this edit. Go ahead if you like. And if it becomes Swiss cheese -- if its Unicode, it'll be OK. -DePiep (talk) 20:44, 18 September 2010 (UTC)[reply]
Well, I trust you agree that having wrong information is a problem (I won't quibble about what size problem). I have fixed it as you suggest, by blanking the characters which aren't in this block (and I also removed the numbers at the top of the plain greek letter columns, as the plain characters are not in order). This means that we don't have any pointer to where characters such as ℛ actually are, but since I'm not thinking of a really obvious way to put such a pointer in, I'm not going to worry about that for now. Kingdon (talk) 15:16, 1 October 2010 (UTC)[reply]
It would probably be nice to show what the numbers are, since these missing characters are a lot harder to find than the originals! Also it was my mistake initially to not realize that there were "holes" in the encoding, I was the one who put the numbers in the columns originally. Also some explanation as to why Unicode thought it was a bad idea to just make the "hole" print the glyph? They seem to allow duplicate glyphs lots of other places, so why not here? unsigned
Unicode tries to avoid duplicates at great cost. In regular text, there is no difference for Unicode between roman or scripted, that's a font-style, and a higher level protocol than Unicode. The ones that are not here, were put in elsewhere earlier for more basic (common) mathematical use. Only versions later they had to admit that in maths there is a different meaning between script-A and italic-A, so these letters are different by style and had to be added. I think letterpickers search by "General category=Symbol, math", or have made tjheir own combination list.
I've added a note about the block Letterlike symbols. Over all the charts we have in Category:Unicode chart templates, I have seen little use of such pointers yet. Unicode has them in the descriptive list, not the chart. Maybe flesh out in the overview page Mathematical operators and symbols in Unicode? -DePiep (talk) 02:36, 7 October 2010 (UTC)[reply]

Testing the table with unicode2 template

As an experiment I have wrapped all the &#x1DXXX characters in the table below in the experimental {{unicode2}} template which tries to select an appropriate font to display the characters with (at present Code2001, Symbola, Segoe UI Symbol and Cambria Math). For me, I can now see all the characters where before I could just saw little square boxes, and so it is a big improvement; but I would like to know whether it is an improvement or not for other editors, and whether people think it is useful to have such a template even though it will only work if readers have downloaded an appropriate font. BabelStone (talk) 23:33, 12 October 2010 (UTC)[reply]

normal bold italic bold
italic 		script bold
script 		fraktur double-
struck 		bold
fraktur 		sans-
serif 		sans-
serif
bold 		sans-
serif
italic 		sans-
serif
bold
italic 		mono-
space
00041 1D400 1D434 1D468 1D49C 1D4D0 1D504 1D538 1D56C 1D5A0 1D5D4 1D608 1D63C 1D670
A Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
B Template:Unicode2 Template:Unicode2 Template:Unicode2 ℬ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
C Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 ℭ ℂ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
D Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
E Template:Unicode2 Template:Unicode2 Template:Unicode2 ℰ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
F Template:Unicode2 Template:Unicode2 Template:Unicode2 ℱ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
G Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
H Template:Unicode2 Template:Unicode2 Template:Unicode2 ℋ Template:Unicode2 ℌ ℍ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
I Template:Unicode2 Template:Unicode2 Template:Unicode2 ℐ Template:Unicode2 ℑ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
J Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
K Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
L Template:Unicode2 Template:Unicode2 Template:Unicode2 ℒ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
M Template:Unicode2 Template:Unicode2 Template:Unicode2 ℳ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
N Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 ℕ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
O Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
P Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 ℙ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
Q Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 ℚ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
R Template:Unicode2 Template:Unicode2 Template:Unicode2 ℛ Template:Unicode2 ℜ ℝ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
S Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
T Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
U Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
V Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
W Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
X Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
Y Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
Z Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 ℨ ℤ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
00061 1D41A 1D44E 1D482 1D4B6 1D4EA 1D51E 1D552 1D586 1D5BA 1D5EE 1D622 1D656 1D68A
a Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
b Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
c Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
d Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
e Template:Unicode2 Template:Unicode2 Template:Unicode2 ℯ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
f Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
g Template:Unicode2 Template:Unicode2 Template:Unicode2 ℊ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
h Template:Unicode2 ℎ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
i Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
j Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
k Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
l Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
m Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
n Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
o Template:Unicode2 Template:Unicode2 Template:Unicode2 ℴ Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
p Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
q Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
r Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
s Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
t Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
u Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
v Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
w Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
x Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
y Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
z Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2 Template:Unicode2
00131 1D6A4
ı Template:Unicode2
00237
ȷ Template:Unicode2
Compare using template {{unicode}} (not {{unicode2}}){{:}}
normal bold italic bold
italic 		script bold
script 		fraktur double-
struck 		bold
fraktur 		sans-
serif 		sans-
serif
bold 		sans-
serif
italic 		sans-
serif
bold
italic 		mono-
space
00041 1D400 1D434 1D468 1D49C 1D4D0 1D504 1D538 1D56C 1D5A0 1D5D4 1D608 1D63C 1D670
A 𝐀 𝐴 𝑨 𝒜 Template:Unicode2 𝔄 𝔸 𝕬 𝖠 𝗔 𝘈 𝘼 𝙰
B 𝐁 𝐵 𝑩 ℬ 𝓑 𝔅 𝔹 𝕭 𝖡 𝗕 𝘉 𝘽 𝙱
Why not fix the span "Unicode" so the older template can be used? — Preceding unsigned comment added by Spitzak (talk • contribs)
There was talk Showing_Unicode (and subthread Template_with_double_showing. (started here). Main line: {{unicode2}} is a trial into using different fonts for usage in Supplementary planes (=not BMP). Probably unfeasible, since the user (a reader) needs to download good fonts on their side. Should we end up definitely with "unicode" (not -2), indeed we can use the span. -DePiep (talk) 03:53, 13 October 2010 (UTC)[reply]
re BabelStone: I have not installed the extra fonts. In Firefox 3.6 I see everything, in Safari I see only thhe pink ones good. The regular ones are question mark -boxes each. -DePiep (talk) 03:53, 13 October 2010 (UTC)[reply]
On an older Linux (SUSE 11) with Firefox 4.0 I see a lot of the characters. I see all pink entries, and all columns *except* the script, bold script, fraktur, and bold fraktur. The templates make no differnce to what characters are seen. On another Linux machinge with Ubuntu (not the latest) I see all characters in all cases.Spitzak (talk) 05:12, 13 October 2010 (UTC)[reply]


but not all of them. I see all the pink ones and all of
Retrieved from "https://en.wikipedia.org/w/index.php?title=Talk:Mathematical_Alphanumeric_Symbols&oldid=390443903"