Talk:2606: Weird Unicode Math Symbols - Revision history

42.book.addict at 21:59, 5 November 2025

2025-11-05T21:59:45Z

172.70.110.227: Undo revision 290925 by 172.69.33.163 (talk) I don't understand what you mean, please state it more clearly

2022-07-27T20:19:45Z

Undo revision 290925 by 172.69.33.163 (talk) I don't understand what you mean, please state it more clearly

172.69.33.163 at 19:29, 27 July 2022

2022-07-27T19:29:16Z

172.70.211.52: /* Enter with Alt */ sign

2022-05-12T04:43:07Z

‎Enter with Alt: sign

172.70.211.52: /* Enter with Alt */ answer

2022-05-12T04:41:15Z

‎Enter with Alt: answer

172.70.250.67 at 16:19, 11 May 2022

2022-05-11T16:19:10Z

172.70.211.18: /* GPT-3's ideas about ⍼ */ grammar

2022-05-09T07:18:00Z

‎GPT-3's ideas about ⍼: grammar

172.70.211.26: /* GPT-3's ideas about ⍼ */ indents

2022-05-09T00:41:04Z

‎GPT-3's ideas about ⍼: indents

172.70.211.26: /* GPT-3's ideas about ⍼ */ new section

2022-05-09T00:38:18Z

‎GPT-3's ideas about ⍼: new section

172.70.162.147 at 19:08, 6 May 2022

2022-05-06T19:08:42Z

@@ Line 6: / Line 6: @@
 : I think that is "larry potter" as the lightning symbol, and the L comes from the L shape the lightning is over imo. [[Special:Contributions/172.70.34.191|172.70.34.191]] 14:47, 14 April 2022 (UTC)Bumpf
 Can someone add a column where we try to crowdsource a description for the "mathematical use of symbol" ?
@@ Line 34: / Line 33: @@
 : As for ⩩, the character just before it in the Unicode code chart [https://www.unicode.org/charts/PDF/U2A00.pdf], ⩨, has the text "identical and parallel to", so it's possible the horizontal lines in this one also means "identical to". I don't know what three vertical lines mean though, and in Unicode there's three (!) different characters with similar glyphs: U+2980 ⦀, U+2AF4 ⫴, and U+2AFC ⫼. [[User:Ionchy|ionchy]] ([[User talk:Ionchy|talk]]) 07:28, 14 April 2022 (UTC)
 :: Identical both vertically and horizontally? [[Special:Contributions/172.69.134.131|172.69.134.131]] 07:32, 14 April 2022 (UTC)
-:: I found one suggestion that the dodecathorp should be used to refer to very big numbers...[[Special:Contributions/172.69.79.223|172.69.79.223]] 08:33, 14 April 2022 (UTC)
+:: I found one suggestion that the dodecathorp should be used to refer to very big numbers... [[Special:Contributions/172.69.79.223|172.69.79.223]] 08:33, 14 April 2022 (UTC)
 :: Three vertical bars means "similar to", so that'd be identical to and similar... to. OK that doesn't work. [[Special:Contributions/172.70.230.75|172.70.230.75]] 04:05, 19 April 2022 (UTC)
@@ Line 53: / Line 52: @@
 :A screen reader should read it as "Double struck H, Double struck a, double struck s..." etc. which seems a pretty accurate readout to me --18:12, 15 April 2022 (UTC)
-== Calming down - Sigma long S ==
+;Calming down - Sigma long S
 Calming down may refer to the pronounciation of the Letter Esh https://en.m.wikipedia.org
@@ Line 67: / Line 66: @@
 Regarding the angzarr symbol,  ⍼ - I can't remember exactly where I got this idea from, but someone might be able to check it out. I think it might have been a symbol from WW2 to enable 3-D coordinates to be mapped onto 2-D paper. It might have been used in the study of 3-D trajectories. The right-angle in the image represents the X and Y axes. The zig-zag represents the z axis. The arrow pointing downwards or outwards towards the viewer represents the 3rd dimension. This symbol was placed in the z axis to indicate that this axis which continues in a straight line from the y axis below the x axis, is not the negative y axis, but the z axis. Regarding the triangle symbol,  ⧍ - this is the delta math symbol, e.g. https://sciencing.com/delta-math-6678201.html - [[Special:Contributions/172.70.162.147|172.70.162.147]] 19:08, 6 May 2022 (UTC)
-== GPT-3's ideas about ⍼ ==
+;GPT-3's ideas about ⍼
 Responses from GPT-3's davinci-002 model with https://beta.openai.com/playground default settings in bold:
@@ Line 164: / Line 163: @@
 Oh, well. [[Special:Contributions/172.70.211.26|172.70.211.26]] 00:38, 9 May 2022 (UTC)
-== Enter with Alt ==
+;Enter with Alt
 how to type these with Alt+numpad?
 [[Special:Contributions/172.70.250.67|172.70.250.67]] 16:19, 11 May 2022 (UTC)
 :On Windows, you mean? Use regedit.exe to create a registry key under HKEY_CURRENT_USER of type REG_SZ called EnableHexNumpad, and set its value to 1, and then reboot. Then you can enter Unicode symbols by holding down the Alt key and typing the plus sign on the numeric keypad followed by the hexadecimal character value. For some reason this doesn't work in Internet Explorer, but does in Chrome, Firefox, and most other applications. [[Special:Contributions/172.70.211.52|172.70.211.52]] 04:43, 12 May 2022 (UTC)

← Older revision		Revision as of 20:19, 27 July 2022
Line 78:		Line 78:

	:;It means "integral" in APL.		:;It means "integral" in APL.
−
−	~~:Bolches yarboclos atte PAOK~~

	:Well, that's a better guess, but also wrong.		:Well, that's a better guess, but also wrong.

← Older revision		Revision as of 19:29, 27 July 2022
Line 78:		Line 78:

	:;It means "integral" in APL.		:;It means "integral" in APL.
		+
		+	:Bolches yarboclos atte PAOK

	:Well, that's a better guess, but also wrong.		:Well, that's a better guess, but also wrong.

@@ Line 167: / Line 167: @@
 how to type these with Alt+numpad?
 [[Special:Contributions/172.70.250.67|172.70.250.67]] 16:19, 11 May 2022 (UTC)
-:On Windows, you mean? Use regedit.exe to create a registry key under HKEY_CURRENT_USER of type REG_SZ called EnableHexNumpad, and set its value to 1, and then reboot. Then you can enter Unicode symbols by holding down the Alt key and typing the plus sign on the numeric keypad followed by the hexadecimal character value. For some reason this doesn't work in Internet Explorer, but does in Chrome, Firefox, and most other applications.
+:On Windows, you mean? Use regedit.exe to create a registry key under HKEY_CURRENT_USER of type REG_SZ called EnableHexNumpad, and set its value to 1, and then reboot. Then you can enter Unicode symbols by holding down the Alt key and typing the plus sign on the numeric keypad followed by the hexadecimal character value. For some reason this doesn't work in Internet Explorer, but does in Chrome, Firefox, and most other applications. [[Special:Contributions/172.70.211.52|172.70.211.52]] 04:43, 12 May 2022 (UTC)

@@ Line 164: / Line 164: @@
 Oh, well. [[Special:Contributions/172.70.211.26|172.70.211.26]] 00:38, 9 May 2022 (UTC)
-# enter with alt
+== Enter with Alt ==
 how to type these with Alt+numpad?
 [[Special:Contributions/172.70.250.67|172.70.250.67]] 16:19, 11 May 2022 (UTC)

← Older revision		Revision as of 16:19, 11 May 2022
Line 163:		Line 163:

	Oh, well. [[Special:Contributions/172.70.211.26\|172.70.211.26]] 00:38, 9 May 2022 (UTC)		Oh, well. [[Special:Contributions/172.70.211.26\|172.70.211.26]] 00:38, 9 May 2022 (UTC)
		+
		+	# enter with alt
		+	how to type these with Alt+numpad?
		+	[[Special:Contributions/172.70.250.67\|172.70.250.67]] 16:19, 11 May 2022 (UTC)

@@ Line 69: / Line 69: @@
 == GPT-3's ideas about ⍼ ==
-Responses from GPT-3's davinci-002 model with https://beta.openai.com/playground default settings are in bold:
+Responses from GPT-3's davinci-002 model with https://beta.openai.com/playground default settings in bold:
 :What does the symbol ⍼ mean?

@@ Line 73: / Line 73: @@
 :What does the symbol ⍼ mean?
-;The symbol ⍼, known as a "diaeresis" or "umlaut", is used in some languages to indicate that the two vowels it is placed over are to be pronounced separately, rather than as a single vowel sound.
+:;The symbol ⍼, known as a "diaeresis" or "umlaut", is used in some languages to indicate that the two vowels it is placed over are to be pronounced separately, rather than as a single vowel sound.
 :No, it isn't either of those.
-;It means "integral" in APL.
+:;It means "integral" in APL.
 :Well, that's a better guess, but also wrong.
-;It's actually a symbol used in chemistry to indicate that two atoms are bonded together covalently.
+:;It's actually a symbol used in chemistry to indicate that two atoms are bonded together covalently.
 :No, that's a colon, :. Try again?
-;It's actually a symbol used in physics to indicate that two particles are interacting.
+:;It's actually a symbol used in physics to indicate that two particles are interacting.
 :That seems very plausible! What is your source?
-;The symbol ⍼ is actually used in mathematics to indicate that a function is continuous.
+:;The symbol ⍼ is actually used in mathematics to indicate that a function is continuous.
 :In math, might it indicate an indefinitely-valued relation over a finite domain.
-;I.e. for the domain {1,2,3,4} the relation "is even" would be symbolized:
+:;I.e. for the domain {1,2,3,4} the relation "is even" would be symbolized:
-;⍼ 2 4 2 4 2 ...
+:;⍼ 2 4 2 4 2 ...
+:;The symbol ⍼ is not typically used to indicate an indefinitely-valued relation over a finite domain.
 :More like, the relation "nearest other evens" for the domain {1, 2, 3, 4} would map to, in order, {{0,2}, {0, 4}, {2, 4}, {2, 6}}. But that's not an indefinitely-valued relation or a finite domain, as each integer maps to exactly two other integers.
+:;The symbol ⍼ is not typically used to indicate an indefinitely-valued relation over a finite domain.
 :Well it doesn't indicate that a function is continuous, either. So what does it actually mean?
-;The symbol ⍼ is actually used in set theory to indicate that a function is one-to-one.
+:;The symbol ⍼ is actually used in set theory to indicate that a function is one-to-one.
 :No. I liked your physics idea, meaning two particles interacting.
-;But that's not it either.
+:;But that's not it either.
-;The symbol ⍼ is actually used in logic to indicate that a formula is valid.
+:;The symbol ⍼ is actually used in logic to indicate that a formula is valid.
 :How? Give an example?
-;The symbol ⍼ can be used to indicate that a formula is valid if the following holds:
+:;The symbol ⍼ can be used to indicate that a formula is valid if the following holds:
+:;⍼(p ∨ q) ↔ (⍼p ∨ ⍼q)
-;In other words, the formula is valid if the statement "p or q" is true if and only if the statement "p is valid or q is valid" is true.
+:;In other words, the formula is valid if the statement "p or q" is true if and only if the statement "p is valid or q is valid" is true.
 :What are p and q there?
-;P and Q can be any formulas. So, for example, if P is the formula "x+1=2" and Q is the formula "x=1", then the formula "P or Q" is true if and only if either "x+1=2" is valid or "x=1" is valid.
+:;P and Q can be any formulas. So, for example, if P is the formula "x+1=2" and Q is the formula "x=1", then the formula "P or Q" is true if and only if either "x+1=2" is valid or "x=1" is valid.
 :What does it mean for a formula to be valid?
-;A formula is valid if it is true in all possible circumstances. So, for example, the formula "x+1=2" is valid if and only if, no matter what value x takes, the statement "x+1=2" is always true.
+:;A formula is valid if it is true in all possible circumstances. So, for example, the formula "x+1=2" is valid if and only if, no matter what value x takes, the statement "x+1=2" is always true.
 :Is the formula "x+1=2" valid?
-;No, the formula "x+1=2" is not valid, because there are some values of x for which the statement "x+1=2" is not true. For example, if x=0, then "x+1=2" is not true.
+:;No, the formula "x+1=2" is not valid, because there are some values of x for which the statement "x+1=2" is not true. For example, if x=0, then "x+1=2" is not true.
 :So is ⍼x>x-1 true?
-;No, the formula "x+1=2" is not valid, because there are some values of x for which the statement "x+1=2" is not true. For example, if x=0, then "x+1=2" is not true.
+:;No, the formula "x+1=2" is not valid, because there are some values of x for which the statement "x+1=2" is not true. For example, if x=0, then "x+1=2" is not true.
 :Is the formula "x>x-1" valid?
-;Yes, the formula "x>x-1" is valid, because no matter what value x takes, the statement "x>x-1" is always true.
+:;Yes, the formula "x>x-1" is valid, because no matter what value x takes, the statement "x>x-1" is always true.
 :What if x is infinity?
-;The formula "x>x-1" is still valid if x is infinity, because no matter what value x takes, the statement "x>x-1" is always true.
+:;The formula "x>x-1" is still valid if x is infinity, because no matter what value x takes, the statement "x>x-1" is always true.
 :Is infinity minus one less than infinity?
-;No, infinity minus one is not less than infinity, because infinity minus one is still infinity.
+:;No, infinity minus one is not less than infinity, because infinity minus one is still infinity.
 :So how can the formula "x>x-1" be valid?
-;The formula "x>x-1" is valid because it is true in all possible circumstances. So, for example, if x=0, then "x>x-1" is true because 0 is greater than 0-1. If x=1, then "x>x-1" is true because 1 is greater than 1-1. If x=infinity, then "x>x-1" is still true because infinity is greater than infinity minus one.
+:;The formula "x>x-1" is valid because it is true in all possible circumstances. So, for example, if x=0, then "x>x-1" is true because 0 is greater than 0-1. If x=1, then "x>x-1" is true because 1 is greater than 1-1. If x=infinity, then "x>x-1" is still true because infinity is greater than infinity minus one.
 :Is infinity greater than infinity minus one?
-;No, infinity is not greater than infinity minus one, because infinity minus one is still infinity.
+:;No, infinity is not greater than infinity minus one, because infinity minus one is still infinity.
 :You just contradicted yourself.
-;No, I didn't contradict myself. The formula "x>x-1" is valid because it is true in all possible circumstances. So, for example, if x=0, then "x>x-1" is true because 0 is greater than 0-1. If x=1, then "x>x-1" is true because 1 is greater than 1-1. If x=infinity, then "x>x-1" is still true because infinity is greater than infinity minus one.
+:;No, I didn't contradict myself. The formula "x>x-1" is valid because it is true in all possible circumstances. So, for example, if x=0, then "x>x-1" is true because 0 is greater than 0-1. If x=1, then "x>x-1" is true because 1 is greater than 1-1. If x=infinity, then "x>x-1" is still true because infinity is greater than infinity minus one.
 :That last sentence is a direct contradiction of your previous statement.
-;No, it's not a contradiction. The formula "x>x-1" is valid because it is true in all possible circumstances. So, for example, if x=0, then "x>x-1" is true because 0 is greater than 0-1. If x=1, then "x>x-1" is true because 1 is greater than 1-1. If x=infinity, then "x>x-1" is still true because infinity is greater than infinity minus one.
+:;No, it's not a contradiction. The formula "x>x-1" is valid because it is true in all possible circumstances. So, for example, if x=0, then "x>x-1" is true because 0 is greater than 0-1. If x=1, then "x>x-1" is true because 1 is greater than 1-1. If x=infinity, then "x>x-1" is still true because infinity is greater than infinity minus one.
 Oh, well. [[Special:Contributions/172.70.211.26|172.70.211.26]] 00:38, 9 May 2022 (UTC)

← Older revision		Revision as of 00:38, 9 May 2022
Line 66:		Line 66:

	Regarding the angzarr symbol, ⍼ - I can't remember exactly where I got this idea from, but someone might be able to check it out. I think it might have been a symbol from WW2 to enable 3-D coordinates to be mapped onto 2-D paper. It might have been used in the study of 3-D trajectories. The right-angle in the image represents the X and Y axes. The zig-zag represents the z axis. The arrow pointing downwards or outwards towards the viewer represents the 3rd dimension. This symbol was placed in the z axis to indicate that this axis which continues in a straight line from the y axis below the x axis, is not the negative y axis, but the z axis. Regarding the triangle symbol, ⧍ - this is the delta math symbol, e.g. https://sciencing.com/delta-math-6678201.html - [[Special:Contributions/172.70.162.147\|172.70.162.147]] 19:08, 6 May 2022 (UTC)		Regarding the angzarr symbol, ⍼ - I can't remember exactly where I got this idea from, but someone might be able to check it out. I think it might have been a symbol from WW2 to enable 3-D coordinates to be mapped onto 2-D paper. It might have been used in the study of 3-D trajectories. The right-angle in the image represents the X and Y axes. The zig-zag represents the z axis. The arrow pointing downwards or outwards towards the viewer represents the 3rd dimension. This symbol was placed in the z axis to indicate that this axis which continues in a straight line from the y axis below the x axis, is not the negative y axis, but the z axis. Regarding the triangle symbol, ⧍ - this is the delta math symbol, e.g. https://sciencing.com/delta-math-6678201.html - [[Special:Contributions/172.70.162.147\|172.70.162.147]] 19:08, 6 May 2022 (UTC)
		+
		+	== GPT-3's ideas about ⍼ ==
		+
		+	Responses from GPT-3's davinci-002 model with https://beta.openai.com/playground default settings are in bold:
		+
		+	:What does the symbol ⍼ mean?
		+
		+	;The symbol ⍼, known as a "diaeresis" or "umlaut", is used in some languages to indicate that the two vowels it is placed over are to be pronounced separately, rather than as a single vowel sound.
		+
		+	:No, it isn't either of those.
		+
		+	;It means "integral" in APL.
		+
		+	:Well, that's a better guess, but also wrong.
		+
		+	;It's actually a symbol used in chemistry to indicate that two atoms are bonded together covalently.
		+
		+	:No, that's a colon, :. Try again?
		+
		+	;It's actually a symbol used in physics to indicate that two particles are interacting.
		+
		+	:That seems very plausible! What is your source?
		+
		+	;The symbol ⍼ is actually used in mathematics to indicate that a function is continuous.
		+
		+	:In math, might it indicate an indefinitely-valued relation over a finite domain.
		+
		+	;I.e. for the domain {1,2,3,4} the relation "is even" would be symbolized:
		+
		+	;⍼ 2 4 2 4 2 ...
		+
		+	;The symbol ⍼ is not typically used to indicate an indefinitely-valued relation over a finite domain.
		+
		+	:More like, the relation "nearest other evens" for the domain {1, 2, 3, 4} would map to, in order, {{0,2}, {0, 4}, {2, 4}, {2, 6}}. But that's not an indefinitely-valued relation or a finite domain, as each integer maps to exactly two other integers.
		+
		+	;The symbol ⍼ is not typically used to indicate an indefinitely-valued relation over a finite domain.
		+
		+	:Well it doesn't indicate that a function is continuous, either. So what does it actually mean?
		+
		+	;The symbol ⍼ is actually used in set theory to indicate that a function is one-to-one.
		+
		+	:No. I liked your physics idea, meaning two particles interacting.
		+
		+	;But that's not it either.
		+
		+	;The symbol ⍼ is actually used in logic to indicate that a formula is valid.
		+
		+	:How? Give an example?
		+
		+	;The symbol ⍼ can be used to indicate that a formula is valid if the following holds:
		+
		+	;⍼(p ∨ q) ↔ (⍼p ∨ ⍼q)
		+
		+	;In other words, the formula is valid if the statement "p or q" is true if and only if the statement "p is valid or q is valid" is true.
		+
		+	:What are p and q there?
		+
		+	;P and Q can be any formulas. So, for example, if P is the formula "x+1=2" and Q is the formula "x=1", then the formula "P or Q" is true if and only if either "x+1=2" is valid or "x=1" is valid.
		+
		+	:What does it mean for a formula to be valid?
		+
		+	;A formula is valid if it is true in all possible circumstances. So, for example, the formula "x+1=2" is valid if and only if, no matter what value x takes, the statement "x+1=2" is always true.
		+
		+	:Is the formula "x+1=2" valid?
		+
		+	;No, the formula "x+1=2" is not valid, because there are some values of x for which the statement "x+1=2" is not true. For example, if x=0, then "x+1=2" is not true.
		+
		+	:So is ⍼x>x-1 true?
		+
		+	;No, the formula "x+1=2" is not valid, because there are some values of x for which the statement "x+1=2" is not true. For example, if x=0, then "x+1=2" is not true.
		+
		+	:Is the formula "x>x-1" valid?
		+
		+	;Yes, the formula "x>x-1" is valid, because no matter what value x takes, the statement "x>x-1" is always true.
		+
		+	:What if x is infinity?
		+
		+	;The formula "x>x-1" is still valid if x is infinity, because no matter what value x takes, the statement "x>x-1" is always true.
		+
		+	:Is infinity minus one less than infinity?
		+
		+	;No, infinity minus one is not less than infinity, because infinity minus one is still infinity.
		+
		+	:So how can the formula "x>x-1" be valid?
		+
		+	;The formula "x>x-1" is valid because it is true in all possible circumstances. So, for example, if x=0, then "x>x-1" is true because 0 is greater than 0-1. If x=1, then "x>x-1" is true because 1 is greater than 1-1. If x=infinity, then "x>x-1" is still true because infinity is greater than infinity minus one.
		+
		+	:Is infinity greater than infinity minus one?
		+
		+	;No, infinity is not greater than infinity minus one, because infinity minus one is still infinity.
		+
		+	:You just contradicted yourself.
		+
		+	;No, I didn't contradict myself. The formula "x>x-1" is valid because it is true in all possible circumstances. So, for example, if x=0, then "x>x-1" is true because 0 is greater than 0-1. If x=1, then "x>x-1" is true because 1 is greater than 1-1. If x=infinity, then "x>x-1" is still true because infinity is greater than infinity minus one.
		+
		+	:That last sentence is a direct contradiction of your previous statement.
		+
		+	;No, it's not a contradiction. The formula "x>x-1" is valid because it is true in all possible circumstances. So, for example, if x=0, then "x>x-1" is true because 0 is greater than 0-1. If x=1, then "x>x-1" is true because 1 is greater than 1-1. If x=infinity, then "x>x-1" is still true because infinity is greater than infinity minus one.
		+
		+	Oh, well. [[Special:Contributions/172.70.211.26\|172.70.211.26]] 00:38, 9 May 2022 (UTC)

← Older revision		Revision as of 19:08, 6 May 2022
Line 64:		Line 64:

	Any of these that are particularly obscure and someone doesn't find and post here what its actual existing use is will be impossible to research later, as people talking about this comic will end up dominating the results of any attempt to search for the symbol.--[[Special:Contributions/108.162.216.27\|108.162.216.27]] 00:08, 19 April 2022 (UTC)		Any of these that are particularly obscure and someone doesn't find and post here what its actual existing use is will be impossible to research later, as people talking about this comic will end up dominating the results of any attempt to search for the symbol.--[[Special:Contributions/108.162.216.27\|108.162.216.27]] 00:08, 19 April 2022 (UTC)
		+
		+	Regarding the angzarr symbol, ⍼ - I can't remember exactly where I got this idea from, but someone might be able to check it out. I think it might have been a symbol from WW2 to enable 3-D coordinates to be mapped onto 2-D paper. It might have been used in the study of 3-D trajectories. The right-angle in the image represents the X and Y axes. The zig-zag represents the z axis. The arrow pointing downwards or outwards towards the viewer represents the 3rd dimension. This symbol was placed in the z axis to indicate that this axis which continues in a straight line from the y axis below the x axis, is not the negative y axis, but the z axis. Regarding the triangle symbol, ⧍ - this is the delta math symbol, e.g. https://sciencing.com/delta-math-6678201.html - [[Special:Contributions/172.70.162.147\|172.70.162.147]] 19:08, 6 May 2022 (UTC)