Difference between revisions of "Talk:2343: Mathematical Symbol Fight"

Explain xkcd: It's 'cause you're dumb.
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Can I get aleph-null aleph-shaped throwing stars? [[User:LunarNapolean|LunarNapolean]] ([[User talk:LunarNapolean|talk]]) 20:18, 7 August 2020 (UTC)
 
Can I get aleph-null aleph-shaped throwing stars? [[User:LunarNapolean|LunarNapolean]] ([[User talk:LunarNapolean|talk]]) 20:18, 7 August 2020 (UTC)
  
Apologies to whoever added the "citation needed" that I stepped on.  -- brad {{unsigned ip|162.158.74.111}}
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Apologies to whoever added the "citation needed" that I stepped on.  -- brad
  
 
That zeta looks conspicuously bad. I wonder if this comic will get a cleaned-up version uploaded. [[Special:Contributions/108.162.237.16|108.162.237.16]] 20:51, 7 August 2020 (UTC)
 
That zeta looks conspicuously bad. I wonder if this comic will get a cleaned-up version uploaded. [[Special:Contributions/108.162.237.16|108.162.237.16]] 20:51, 7 August 2020 (UTC)
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I think Randall is underestimating the weapon utility of psi. There's a real-world martial arts [https://en.wikipedia.org/wiki/Sai_(weapon) weapon] that looks somewhat like it.[[Special:Contributions/172.69.68.197|172.69.68.197]] 22:04, 7 August 2020 (UTC)
 
I think Randall is underestimating the weapon utility of psi. There's a real-world martial arts [https://en.wikipedia.org/wiki/Sai_(weapon) weapon] that looks somewhat like it.[[Special:Contributions/172.69.68.197|172.69.68.197]] 22:04, 7 August 2020 (UTC)
:I think he’s also seriously underestimating the value of keeping your fingers attached to your hand. Swords have guards for a reason. I’d pick the contour integral over anything else there. {{unsigned ip|172.69.35.31}}
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:I think he’s also seriously underestimating the value of keeping your fingers attached to your hand. Swords have guards for a reason. I’d pick the contour integral over anything else there.
  
 
Considering the title text, a bass clef looks pretty formidable, close to a bat'leth. [[User:Nutster|Nutster]] ([[User talk:Nutster|talk]]) 00:31, 8 August 2020 (UTC)
 
Considering the title text, a bass clef looks pretty formidable, close to a bat'leth. [[User:Nutster|Nutster]] ([[User talk:Nutster|talk]]) 00:31, 8 August 2020 (UTC)
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::Or a viola...[[Special:Contributions/141.101.98.26|141.101.98.26]] 22:05, 9 August 2020 (UTC)
 
::Or a viola...[[Special:Contributions/141.101.98.26|141.101.98.26]] 22:05, 9 August 2020 (UTC)
  
These “weapons” seem strangely appropriate for xkcd’s stick figures... -cpl {{unsigned ip|162.158.123.173}}
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These “weapons” seem strangely appropriate for xkcd’s stick figures... -cpl
: Agreed :) {{unsigned ip|172.69.63.237 }}
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: Agreed :)
  
Are we sure White Hat is holding empty set? There don't appear to be points extending outside the circle in which case I think he's actually holding Theta -jc {{unsigned ip|162.158.74.95}}
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Are we sure White Hat is holding empty set? There don't appear to be points extending outside the circle in which case I think he's actually holding Theta -jc
  
 
Can I use the LaTeX mathwitch? [[Special:Contributions/141.101.98.26|141.101.98.26]] 10:03, 8 August 2020 (UTC)
 
Can I use the LaTeX mathwitch? [[Special:Contributions/141.101.98.26|141.101.98.26]] 10:03, 8 August 2020 (UTC)
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I think that’s the is proportional to” symbol rather than just alpha. They are similar but have different Unicode symbols. Thoughts?--[[Special:Contributions/141.101.98.222|141.101.98.222]] 12:01, 8 August 2020 (UTC)
 
I think that’s the is proportional to” symbol rather than just alpha. They are similar but have different Unicode symbols. Thoughts?--[[Special:Contributions/141.101.98.222|141.101.98.222]] 12:01, 8 August 2020 (UTC)
:You're definitely correct. (They don't even look that similar...) It's the direct proportion symbol, not the symbol for Alpha. [[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 18:03, 8 August 2020 (UTC)
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:You're definitely correct. (They don't even look that similar...) It's the direct proportion symbol, not the symbol for Alpha.  
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:[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 18:03, 8 August 2020 (UTC)
 
I don't think → is "implies", particularly as we've had ⇒ earlier.  → is often used for "maps to", as in f: x → f(x) [[Special:Contributions/141.101.107.166|141.101.107.166]] 19:24, 8 August 2020 (UTC)
 
I don't think → is "implies", particularly as we've had ⇒ earlier.  → is often used for "maps to", as in f: x → f(x) [[Special:Contributions/141.101.107.166|141.101.107.166]] 19:24, 8 August 2020 (UTC)
 
:→ and ⇒ often mean two different kinds of "implies".  The single arrow is for the boolean operator that takes in two truth values and outputs a truth value.  The double one is for "things on the left justify/prove things on the right",  in somewhat of a metalanguage. Here's an example of two different ways of saying Modus Ponens with the operators: ((p→q) ∧p)→q  vs p→q,p⇒q [[User:Alan g|Alan g]] ([[User talk:Alan g|talk]]) 03:52, 9 August 2020 (UTC)
 
:→ and ⇒ often mean two different kinds of "implies".  The single arrow is for the boolean operator that takes in two truth values and outputs a truth value.  The double one is for "things on the left justify/prove things on the right",  in somewhat of a metalanguage. Here's an example of two different ways of saying Modus Ponens with the operators: ((p→q) ∧p)→q  vs p→q,p⇒q [[User:Alan g|Alan g]] ([[User talk:Alan g|talk]]) 03:52, 9 August 2020 (UTC)
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:Confusingly, math conventions in some countries use a low dot for multiplication, though it's not as common as it used to be. That's in addition to all the other things that bare dots can represent in math. Personally I can't "see" any particular set of semantics for that symbol, I just see a dot. [[Special:Contributions/162.158.186.136|162.158.186.136]] 22:51, 8 August 2020 (UTC)
 
:Confusingly, math conventions in some countries use a low dot for multiplication, though it's not as common as it used to be. That's in addition to all the other things that bare dots can represent in math. Personally I can't "see" any particular set of semantics for that symbol, I just see a dot. [[Special:Contributions/162.158.186.136|162.158.186.136]] 22:51, 8 August 2020 (UTC)
 
We see a greater-than, but no less-than. Where would that appear? I think >≠<, in fact ><<, if wielded properly. Though if thrown, either/both could be a multi-use projectile... [[Special:Contributions/141.101.98.96|141.101.98.96]] 09:08, 9 August 2020 (UTC)
 
We see a greater-than, but no less-than. Where would that appear? I think >≠<, in fact ><<, if wielded properly. Though if thrown, either/both could be a multi-use projectile... [[Special:Contributions/141.101.98.96|141.101.98.96]] 09:08, 9 August 2020 (UTC)
: Took me a little bit to figure out what you meant, but I think it hasn't been clarified which side is the point or sharp side, so until that is clarified "<"=">" {{unsigned ip|172.69.63.237 }}
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: Took me a little bit to figure out what you meant, but I think it hasn't been clarified which side is the point or sharp side, so until that is clarified "<"=">"
  
Anyone else think the title text is hinting at a pun? "I got scared because his weapon looked like treble" sort of thing? {{unsigned ip|172.69.63.237 }}
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Anyone else think the title text is hinting at a pun? "I got scared because his weapon looked like treble" sort of thing?
  
 
Where is the opening parenthesis? [[Special:Contributions/172.69.33.223|172.69.33.223]] 21:43, 9 August 2020 (UTC)
 
Where is the opening parenthesis? [[Special:Contributions/172.69.33.223|172.69.33.223]] 21:43, 9 August 2020 (UTC)
 
: Here! (: [[Special:Contributions/162.158.154.131|162.158.154.131]] 09:33, 10 August 2020 (UTC)
 
: Here! (: [[Special:Contributions/162.158.154.131|162.158.154.131]] 09:33, 10 August 2020 (UTC)
  
;Would anyone else like to join me in creating an anti-Gamma interest group?
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If I could implement a line integral as a machine rather than a symbol, I'd use that to encircle my enemy.  WIN!  [[User:Cellocgw|Cellocgw]] ([[User talk:Cellocgw|talk]]) 13:15, 10 August 2020 (UTC)
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== Would anyone else like to join me in creating an anti-Gamma interest group? ==
 +
 
 
Just asking. [[Special:Contributions/172.69.33.223|172.69.33.223]] 21:47, 9 August 2020 (UTC)
 
Just asking. [[Special:Contributions/172.69.33.223|172.69.33.223]] 21:47, 9 August 2020 (UTC)

Revision as of 13:15, 10 August 2020


Can I get aleph-null aleph-shaped throwing stars? LunarNapolean (talk) 20:18, 7 August 2020 (UTC)

Apologies to whoever added the "citation needed" that I stepped on. -- brad

That zeta looks conspicuously bad. I wonder if this comic will get a cleaned-up version uploaded. 108.162.237.16 20:51, 7 August 2020 (UTC)

Megan usually has shoulder-length hair, so the person being attacked by Ponytail is probably not Megan... except in so far as all brunettes in this comic are called 'Megan'. LtPowers (talk) 20:53, 7 August 2020 (UTC)

Is one of them Danish? And one of them Megan? 172.69.33.121 22:49, 7 August 2020 (UTC)

I think Randall is underestimating the weapon utility of psi. There's a real-world martial arts weapon that looks somewhat like it.172.69.68.197 22:04, 7 August 2020 (UTC)

I think he’s also seriously underestimating the value of keeping your fingers attached to your hand. Swords have guards for a reason. I’d pick the contour integral over anything else there.

Considering the title text, a bass clef looks pretty formidable, close to a bat'leth. Nutster (talk) 00:31, 8 August 2020 (UTC)

Yes, but the treble clef is the one in the title text, and that’s nothing like a Klingon bat'leth. I removed the comment from the table. Adam1729 (talk) 02:09, 8 August 2020 (UTC)
If we're talking clefs/klingon weaponry, get on the viola clef. That's bat'leth AF. It's even known as a "K Clef" in some circles. You could do some pretty hefty damage with a viola clef.
Or a viola...141.101.98.26 22:05, 9 August 2020 (UTC)

These “weapons” seem strangely appropriate for xkcd’s stick figures... -cpl

Agreed :)

Are we sure White Hat is holding empty set? There don't appear to be points extending outside the circle in which case I think he's actually holding Theta -jc

Can I use the LaTeX mathwitch? 141.101.98.26 10:03, 8 August 2020 (UTC)

First time editor here,hope I get the notation right! Question on the pi link to wikipedia: I put in the double link to the main page and the disambiguation because unfortunately https://en.wikipedia.org/wiki/Pi_(disambiguation)#Mathematics doesn't include the mathematical constant definition (though it is listed at the top of the page). Thoughts? Alan g (talk) 10:38, 8 August 2020 (UTC)

I think that’s the is proportional to” symbol rather than just alpha. They are similar but have different Unicode symbols. Thoughts?--141.101.98.222 12:01, 8 August 2020 (UTC)

You're definitely correct. (They don't even look that similar...) It's the direct proportion symbol, not the symbol for Alpha.
ProphetZarquon (talk) 18:03, 8 August 2020 (UTC)

I don't think → is "implies", particularly as we've had ⇒ earlier. → is often used for "maps to", as in f: x → f(x) 141.101.107.166 19:24, 8 August 2020 (UTC)

→ and ⇒ often mean two different kinds of "implies". The single arrow is for the boolean operator that takes in two truth values and outputs a truth value. The double one is for "things on the left justify/prove things on the right", in somewhat of a metalanguage. Here's an example of two different ways of saying Modus Ponens with the operators: ((p→q) ∧p)→q vs p→q,p⇒q Alan g (talk) 03:52, 9 August 2020 (UTC)

Are we sure that is the multiplication sign (center dot)? The placement makes it seem more a decimal point. 162.158.123.47 21:51, 8 August 2020 (UTC)

Confusingly, math conventions in some countries use a low dot for multiplication, though it's not as common as it used to be. That's in addition to all the other things that bare dots can represent in math. Personally I can't "see" any particular set of semantics for that symbol, I just see a dot. 162.158.186.136 22:51, 8 August 2020 (UTC)

We see a greater-than, but no less-than. Where would that appear? I think >≠<, in fact ><<, if wielded properly. Though if thrown, either/both could be a multi-use projectile... 141.101.98.96 09:08, 9 August 2020 (UTC)

Took me a little bit to figure out what you meant, but I think it hasn't been clarified which side is the point or sharp side, so until that is clarified "<"=">"

Anyone else think the title text is hinting at a pun? "I got scared because his weapon looked like treble" sort of thing?

Where is the opening parenthesis? 172.69.33.223 21:43, 9 August 2020 (UTC)

Here! (: 162.158.154.131 09:33, 10 August 2020 (UTC)


If I could implement a line integral as a machine rather than a symbol, I'd use that to encircle my enemy. WIN! Cellocgw (talk) 13:15, 10 August 2020 (UTC)

Would anyone else like to join me in creating an anti-Gamma interest group?

Just asking. 172.69.33.223 21:47, 9 August 2020 (UTC)