explain xkcd - User contributions [en]

Talk:2037: Supreme Court Bracket

2018-08-24T10:35:16Z

162.158.90.6:

Came here for insight, only to discover this is tomorrow's comic, I'm viewing Friday's comic on Thursday after midnight. D'oh! Damn, seeing a comic early and I can't provide or contribute to the explanation, LOL! I realize the bracket and "Sweet 16" are sports things, I think football and/or basketball, and I spotted the famous name Roe vs. Wade, so seems like court cases, but that's it. Looking forward to people explaining the smaller jokes (I spotted "Loving" and "Virginia", and I feel like I recall their license plates say "Virginia Is For Lovers" I think, I expect something there). [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 04:58, 24 August 2018 (UTC)
:Protip: Thursday after midnight is Friday! Nonetheless this comic was released at 0:00 EDT meaning it was still Thursday at time zones westwards. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 07:03, 24 August 2018 (UTC)
:I got here at like 9:10 Pacific time and the comic was already up; normally I have to wait until like 1 AM before Randall posts it/you guys auto-mirror it.[[Special:Contributions/172.68.189.235|172.68.189.235]] 08:23, 24 August 2018 (UTC)

Errm. You can go back to the previous comic if you hit the [<Prev] button just above the current one. {{unsigned ip|141.101.107.36}}

I agree that this is a sports reference, but can someone also include some sort of note about the title? I think that the "Supreme COURT" is referring to a basketball COURT, connected to how brackets like this are used in basketball like with March Madness. [[User:B. A. Beder|B. A. Beder]] ([[User talk:B. A. Beder|talk]]) 05:50, 24 August 2018 (UTC)
:No, I'm pretty sure it's titled Supreme Court Bracket because the bracket consists of cases in which the Supreme Court of the United States made the rulings. [[Special:Contributions/162.158.90.6|162.158.90.6]] 10:35, 24 August 2018 (UTC)

Well, how would the tournament turn out? We know who won the cases, so who's the king of the US legal system? --[[Special:Contributions/162.158.90.66|162.158.90.66]] 06:41, 24 August 2018 (UTC)

Moral of the story: If you are the respondent in a landmark case, you might as well give up. --[[User:Troy0|Troy0]] ([[User talk:Troy0|talk]]) 07:53, 24 August 2018 (UTC)
:I noticed that as well. Do most "landmark" cases go to the plaintiff or is this just an outlier sample?[[Special:Contributions/172.68.189.235|172.68.189.235]] 08:23, 24 August 2018 (UTC)
: But Marbury actually won the case, the court was unable to deliver the ruling [[Special:Contributions/162.158.155.104|162.158.155.104]] 09:42, 24 August 2018 (UTC)

Talk:2028: Complex Numbers

2018-08-04T09:59:47Z

162.158.90.6:

I assume this is strictly a coincidence, but in reference to the title-text, I'll just mention that Caucher Birkar [the mathematician whose Fields Medal was stolen minutes after he received it in Rio de Janeiro on Weds (1Aug2018)] received the award for work in algebraic geometry. [[User:Arcanechili|Arcanechili]] ([[User talk:Arcanechili|talk]]) 16:34, 3 August 2018 (UTC)
* Perhaps it's causal not coincidental. Medal theives and perhaps Randall might read the news also. [[https://scholar.google.com/scholar?cluster=8941732171299849045&hl=en&as_sdt=0,39&sciodt=0,39]] [[Special:Contributions/162.158.79.209|162.158.79.209]] 00:34, 4 August 2018 (UTC)

I've added a basic description of Abelian groups in the title text, and that's about as much as I know about such topics. I'm not sure what a "meta-Abelian group" is, is that an Abelian group of other groups? Also, could someone add basic descriptions of algebreic geometry and geometrical algebra? [[Special:Contributions/172.68.94.40|172.68.94.40]] 18:42, 3 August 2018 (UTC)

In the title text, since groups are a concept within mathematics, it seems odd to consider mathematics as a whole forming any sort of group within itself, which I suspect is the first part of the pun. Secondly, since groups involve the commutative property, I think the last part is a pun about the order of the words algebra and geometry, as if they're commutative themselves! [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 19:19, 3 August 2018 (UTC)
: I meant to say 'abelian' groups involve the commutative property, and the meta prefix is referring to the fact that it's about the names rather than the mathematical details - i.e. commutative in metadata only. [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 19:24, 3 August 2018 (UTC)

: I guess the joke is that informally mathematicians form a ''group'' (a number of people classed together), what would strictly be a ''set'' in mathematics. While in mathematics, a group is an algebraic structure consisting of a set of elements equipped with an operation that combines any two elements to form a third element and that satisfies specific conditions. --[[User:JakubNarebski|JakubNarebski]] ([[User talk:JakubNarebski|talk]]) 21:18, 3 August 2018 (UTC)

It's a false dilemma. Complex numbers ''are'' vectors (<math>\mathbb{C}</math> is a two-dimensional <math>\mathbb{R}</math>-vector space, and more generally every field is a vector space over any subfield), but that doesn't change anything about the fact that <math>i</math> is by definition a square root of -1. [[User:Zmatt|Zmatt]] ([[User talk:Zmatt|talk]]) 20:38, 3 August 2018 (UTC)

Fun factoid: not only is <math>\mathbb{C}</math> the unique proper field extension of finite degree over <math>\mathbb{R}</math> (since <math>\mathbb{C}</math> is algebraically closed), but the converse is true as well: <math>\mathbb{R}</math> is the only proper subfield of finite index in <math>\mathbb{C}</math>. They're like a weird married couple. [[User:Zmatt|Zmatt]] ([[User talk:Zmatt|talk]]) 20:53, 3 August 2018 (UTC)

Altho there are no "meta-abelian" groups there are metabelian groups. If xy=yx then the commutator [x,y]=xyx^{-1}y^{-1}=1. The group generated by the commutators -- the commutator subgroup -- is thus a measure of how far a group is from being abelian. A metabelian group is a nonabelian group whose commutator subgroup is abelian. Thus a metabelian group is one made of a stack of two abelian groups. It is "meta-abelian" in that sense. A standard example is the group of invertible upper-trianglular matrices. The commutators all have 1s on the diagonals.

:One should note that the concept of complex numbers actually is older than vector spaces. So while it is true that complex numbers are a cool variant of vectors, historically that's not true, because vectors were more or less unknown when complex numbers were used for the first time. --[[Special:Contributions/162.158.90.6|162.158.90.6]] 09:59, 4 August 2018 (UTC)

1819: Sweet 16

2017-04-03T09:22:10Z

162.158.90.6: /* Transcript */

{{comic
| number = 1819
| date = April 3, 2017
| title = Sweet 16
| image = sweet_16.png
| titletext = Every year I make out my bracket at the season, and every year it's busted before the first game when I find out which teams are playing.
}}

==Explanation==
{{incomplete|Created by a BOT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

==Transcript==
:[The comic shows a direct elimination bracket (a single-elimination tournament): there is a single match played by every pair of teams, and the winners of those matches are paired up for the next round of matches, this continues until there are no more matches to be played. There are sixteen teams described here (hence the number in the title), eight on each side of the empty rectangle in the middle. Every two teams are connected, these connectors are then also connected, these connectors are yet again connected, and a final pair of connectors, after making one counter-clockwise right angle turn, end up in the top and bottom edges of the central rectangle. The bracket is empty, no results of any of the matches are indicated.]

:{| class="wikitable" style="background:transparent;border:none;width:100%;"
| style="background:transparent;border:none;" |
 [These are paired.]
 A school with a dog on their team
 A school whose team is entirely dogs

 [These are paired.]
 A dog team with one human
 A dog team with one cat

 [These are paired.]
 A baseball team playing basketball
 A basketball team with baseball gear

 [These are paired.]
 NBA2K17 top players
 NBA2K17 top developers

| style="background:transparent;border:none;" |
 [These are paired.]
 The 1988 Los Angeles lakers
 Four kindergarteners and Lebron James

 [These are paired.]
 Boxers playing basketball
 Basketball players in boxing gloves

 [These are paired.]
 A team playing on stilts
 A team playing on Segways

 [These are paired.]
 A bad team that would make a good Cinderella story
 A good team playing in glass slippers

|}

{{comic discussion}}

1819: Sweet 16

2017-04-03T09:19:06Z

162.158.90.6:

{{comic
| number = 1819
| date = April 3, 2017
| title = Sweet 16
| image = sweet_16.png
| titletext = Every year I make out my bracket at the season, and every year it's busted before the first game when I find out which teams are playing.
}}

==Explanation==
{{incomplete|Created by a BOT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

==Transcript==
:[The comic shows a direct elimination bracket (a single-elimination tournament), meaning that there is a single match played by each pair of teams, and the winners are of those are paired up for the next round of matches, this continues until there are no more matches to be played. There are sixteen teams described here (hence the number in the title), eight on each side of the empty rectangle in the middle. Every two teams are connected, these connectors are then also connected, these connectors are yet again connected, and a final pair of connectors, after making one counter-clockwise right angle turn, end up in the top and bottom edges of the central rectangle. The bracket is empty, no results of any of the matches are indicated.]

:{| class="wikitable" style="background:transparent;border:none;width:100%;"
| style="background:transparent;border:none;" |
 [These are paired.]
 A school with a dog on their team
 A school whose team is entirely dogs

 [These are paired.]
 A dog team with one human
 A dog team with one cat

 [These are paired.]
 A baseball team playing basketball
 A basketball team with baseball gear

 [These are paired.]
 NBA2K17 top players
 NBA2K17 top developers

| style="background:transparent;border:none;" |
 [These are paired.]
 The 1988 Los Angeles lakers
 Four kindergarteners and Lebron James

 [These are paired.]
 Boxers playing basketball
 Basketball players in boxing gloves

 [These are paired.]
 A team playing on stilts
 A team playing on Segways

 [These are paired.]
 A bad team that would make a good Cinderella story
 A good team playing in glass slippers

|}

{{comic discussion}}

1819: Sweet 16

2017-04-03T09:14:42Z

162.158.90.6: /* Transcript */

{{comic
| number = 1819
| date = April 3, 2017
| title = Sweet 16
| image = sweet_16.png
| titletext = Every year I make out my bracket at the season, and every year it's busted before the first game when I find out which teams are playing.
}}

==Explanation==
{{incomplete|Created by a BOT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[A tournament bracket. It is a direct elimination bracket (also called a single-elimination tournament), meaning that there is one match played between between each pair of teams, and the winners are paired up for the next set of matches, this continues until there are no more matches to be played. There are sixteen teams described here (hence the number in the title), eight on each side of the empty rectangle in the middle. Every two teams are connected, these connectors are then also connected, these connectors are yet again connected, and a final pair of connectors, after making one counter-clockwise right angle turn, end up in the top and bottom edges of the central rectangle. The bracket is empty, no results of any of the matches are indicated.]

:{| class="wikitable" style="background:transparent;border:none;width:100%;"
| style="background:transparent;border:none;" |
 [These are paired.]
 A school with a dog on their team
 A school whose team is entirely dogs

 [These are paired.]
 A dog team with one human
 A dog team with one cat

 [These are paired.]
 A baseball team playing basketball
 A basketball team with baseball gear

 [These are paired.]
 NBA2K17 top players
 NBA2K17 top developers

| style="background:transparent;border:none;" |
 [These are paired.]
 The 1988 Los Angeles lakers
 Four kindergarteners and Lebron James

 [These are paired.]
 Boxers playing basketball
 Basketball players in boxing gloves

 [These are paired.]
 A team playing on stilts
 A team playing on Segways

 [These are paired.]
 A bad team that would make a good Cinderella story
 A good team playing in glass slippers

|}

{{comic discussion}}

1819: Sweet 16

2017-04-03T09:04:53Z

162.158.90.6:

{{comic
| number = 1819
| date = April 3, 2017
| title = Sweet 16
| image = sweet_16.png
| titletext = Every year I make out my bracket at the season, and every year it's busted before the first game when I find out which teams are playing.
}}

==Explanation==
{{incomplete|Created by a BOT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[A tournament bracket. There are sixteen teams (hence the number in the title), eight on each side of the empty rectangle in the middle. Every two teams are connected, these connectors are then also connected, these connectors are yet again connected, and a final pair of connectors, after making one counter-clockwise right angle turn, end in the the top and bottom edges of the cental rectangle.]

:{| class="wikitable" style="background:transparent;border:none;width:100%;"
| style="background:transparent;border:none;" |
 [These are paired.]
 A school with a dog on their team
 A school whose team is entirely dogs

 [These are paired.]
 A dog team with one human
 A dog team with one cat

 [These are paired.]
 A baseball team playing basketball
 A basketball team with baseball gear

 [These are paired.]
 NBA2K17 top players
 NBA2K17 top developers

| style="background:transparent;border:none;" |
 [These are paired.]
 The 1988 Los Angeles lakers
 Four kindergarteners and Lebron James

 [These are paired.]
 Boxers playing basketball
 Basketball players in boxing gloves

 [These are paired.]
 A team playing on stilts
 A team playing on Segways

 [These are paired.]
 A bad team that would make a good Cinderella story
 A good team playing in glass slippers

|}

{{comic discussion}}

1819: Sweet 16

2017-04-03T08:41:21Z

162.158.90.6: /* Transcript */

1819: Sweet 16

2017-04-03T08:16:56Z

162.158.90.6:

627: Tech Support Cheat Sheet

2017-03-06T14:14:26Z

162.158.90.6: fixed titletext

{{comic
| number = 627
| date = August 24, 2009
| title = Tech Support Cheat Sheet
| image = tech_support_cheat_sheet.png
| titletext = 'Hey Megan, it's your father. How do I print out a flowchart?'
}}

==Explanation==
The main point of this comic is that many tech-savvy people really don't know much about computers. They just have developed an intuition which works in many situations. This intuition is shown here in the form of a diagram. In particular, the chart exposes the computer expert's secret ingredient: trial and error.

A {{w|flowchart}} is an organizational tool for showing process flow. A box is an instruction, a diamond indicates a question, and the arrows control the flow from one symbol to another. Other flowchart comics can be found [[:Category:Flowcharts|here]].

The title text is a sad admission that even knowing the procedure for how to fix the problem, many people will not follow it and still call tech support.

==Transcript==
:Dear various parents, grandparents, co-workers, and other "not computer people."
:We don't magically know how to do everything in every program. When we help you, we're usually just doing this:

:[There is a flowchart there. Numbers are included to improve clarity, and do not appear in the original.]

:Rectangle: Start.
:[Go to 1.]

:[1. Diamond] Find a menu item or button which looks related to what you want to do.
:[I can't find one - go to 2.]
:[Ok - go to 3.]

:[2. Diamond] Pick one at random.
:[I've tried them all - go to 4.]
:[Ok - go to 3.]

:[3. Rectangle] Click it.
:[Go to 5.]

:[4. Rectangle] Google the name of the program plus a few words related to what you want to do. Follow any instructions.
:[Go to 5.]

:[5. Diamond] Did it work?
:[Yes - go to 8.]
:[No - go to 6.]

:[6. Diamond] Have you been trying this for over half an hour?
:[Yes - go to 7.]
:[No - go to 1.]

:[7. Rectangle] Ask someone for help or give up.
:[End of flowchart.]

:[8. Rectangle] You're done!
:[End of flowchart.]

:Please print this flowchart out and tape it near your screen. Congratulations; you're now the local computer expert!
{{comic discussion}}
[[Category:Flowcharts]]
[[Category:Comics featuring Megan]]
[[Category:Google Search]]