yes but i assume the typewriter thing isnt exactly as it is demonstrated... An double letter with a small space doesnt make 2 lines in the middle and only 1 on the sides... it does now because they were changed... to make them look cooler... i work with some flexo printing (that the basics are basically the typewriter one, and double registry while off a few milimeters looks very bad)
He mentiones this in the video. The double struck is just a way to write a letter in bold on a chalkboard. Before that was created the characters used to repesent the sets of numbers letters were just the same letters but in bold. Just like how with vectors we use lower case letters in bold but that doesnt work well on a board so vectors were denoted by underlining a lower case letter. Books lower case for vectors and books uppercase for sets are still used in print.
From what I remember vectors on the blackboard were denoted with an arrow above the letter most of the time, but I guess underlining would work as well.
0:07 In Indonesia, Twitter Bird's Logo is looks similar with Traveloka Logo. FYI, Traveloka is the Travel Agent from Indonesia to Order and Booking a Tickets such as Airplane, Hotels, and Villas.
@@franksanz1044 Nope, and frankly I could lose $10 over and over again and still be ok. He can't. But he doesn't believe he can fail, and that is perhaps the most dangerous trait a person can have for themselves.
1:38 Backspace, hold on shift and press R. If you press space, it will just advance one place. On electronic typewriters (some, not all) backspace can erase one char). But Spacebar is wrong.
On mechanical typewriters, pushing down the space bar advanced half way, and letting it up advanced the other half. That's the way the mechanism worked.
Many apps use an "X" symbol on a GUI window to allow the user to kill the app and exit. Many cartoonists draw an "X" where eyes should be, to indicate that the cartoon character has died. These uses evoke what Elon Musk has been doing to Twitter.
I thought on a blackboard, the bold bit was done with the side of the chalk originally. Even if that’s wrong, I still think that would be cooler, but it seems a more logical way to bold (parts of) letters so it could be true 😊
I feel like for an experienced chalk user writing 2 lines is faster than dragging a piece of chalk with high contact area across the board, thereby increasing friction significantly
It will be a space controlled by an "arbitrary metric"... (It says so in the video at 3:01 : Double-strike X : Occasionally used to denote an _arbitrary metric space_ ...)
As a data scientist who does not come from a Math background, it drives me wild when mathematicians/physicist colleagues use single letter variables for quantities - the affordances of code let you be _so much more expressive_ and clearer than just naming your variable x. Code is not a blackboard, folks!
The tradeoff is that then you'd have to explicitly write all multiplication operators, like you do in code; for example, "bunny" isn't the same as "b * n ^ 2 * u * y".
When was the last time you did some real physics? We don't just name our unknows x. They are a, B, C, D, E, F, g, h, I, j, k, L, m, N, p, Q, r, s, t, U, v, w, X, Y, Z, in lower and upper case as well as basically the same with greek letters.
I still prefer to use commonly used variable to be single or double digit names. However you are also true. In Physics there are multiple cases when to different physicsal quantities rendered the same letter, and it is annoying.
@@Sirenhound When the deputy marshal of the USMS arrives at Elon's home to collect items in the foreclosure, his pocket calculator will show an "E" and he will not understand that. "- Do you have an E?" "- Well.. It's the first letter in my name. But you don't want to leave me being a Lon Musk, do you? Sounds kinda maffia or something." "- Oh, if I turn it upside down it becomes a 3! Do you have 3?" "- Yeah, sure, here have it."
No. The logo and the name of the app were changed because it is no longer limited to being an app that just lets users 'tweet'. It will eventually allow users to post audio, image, video, and written content. It will also incorporate banking services and financial transactions. It will be like ebay, paypal, twitter, whatsapp, and RUclips combined. The letter x is used in algebra for an unknown value that is yet to be determined or a variable that could be anything. The X app will let you do anything that you may want to do online and its functionality will continue to evolve, so its true value in the long term is yet to be determined. The new name makes perfect sense.
No matter how this ends - changing back the logo won't be required either way. I am quite interested in seeing how many people are interested in moving a big chunk of their every day life into the app they used for tweeting out occasional fart jokes and memes. It probably has less to do with how much of a genius Musk is, but much more with how moronic the users are.
@@MrAlRats It will allow to post audio, written, image and video content... Like... In normal tweets???? And I'm not too sure people would leave their money in the hands of twitter after witnessing the um. Ongoing hijinks.
I still can not believe my generation has to get all this, first was the CP being removed, then he told us to touch grass and now he changed the name to X. I can't save the world like this, is too much sa😢
TBF it's not the same, the typewriter version is just the same letter twice with a slight offset, while \mathbb is a specific set of additions to each letter (e.g. for N, the vertical lines aren't doubled).
Guarantee his logo has nothing to do with math... or logic. I bet he liked the way it looked. The change is the result of him doing whatever he wants. He likely will change it again and again every month. Any time he finds something (in his opinion) cooler.
@ge2719 idk cuz idc about space x. I don't believe in spending billions of dollars to run away from earth to Mars where its lifeless and just dirt. I also don't believe in polluting the atmosphere with rocket fuel in the process. Anybody who doesn't care about earth isn't worth my time.
Music _uses_ math to explain phenomena, just like Physics does, it's not a formal science, let alone the same thing as Mathematics; unfortunately, you often see such sentences as "Music is Math." in inspirational quotes.
@@militantpacifist4087 Yes, math with tens of thousands of axioms which are part of an ever-changing knowledge base because "proof by experiment" doesn't fly in real math...
It's same like the Programming Languages name like C and R. If C is the Ancestor of Modern Programming Languages such as C++, and also R is the Programming Language for Data Science replacement for Python. And also, Elon Musk changed Twitter into X is the Great Idea to Modernized the Super-Apps.
The X is more related to Roman letters, which in contrast, the Blue Bird is more international. With such move of identity, Twitter might lose users because this new identity would make people think it's less international but more Westernized.
Did PResh ever explain tht character in calculus used to show a partial deriviative. The one that's not quite a d and not quite a lowercase delta, but looks like a hybrid of the 2 characters?
Not that I recall, but short version of its history: it was introduced by French mathematician Nicolas de Condorcet in 1770, picked up by Legendre as the partial derivative symbol in 1786, then discarded by him, then reintroduced by Carl Jacobi in 1841. It's basically a modified cursive _d_ , just like the integral symbol is a modified long _s_ .
ISO defines N as containing 0, but both definitions are used. To disambiguate, N subscript 0 and N subscript 1 are used. To ambiguate, N superscript 0, N superscript +, N superscript *, Z supercript +, Z superscript + subscript 0, Z subscript > 0 and Z subscript >= 0, and W are also used.
Twitter changed their logo because Elon Musk is a man-child with the mind of an edgy 13-year old who thinks the letter X is "super cool, yo!" and for no other reason.
Buying Twitter was a monumental mistake by Elon Musk. He could have spent a tenth of the money and set up his own platform and brand instead of buying Twitter at an overly inflated price and then rebrand.
The point was to take down the world's premier propaganda and corrupt narrative regime and expose it for what it was. Did he use his own money or DoD he use other funds? There are some very interesting things about Elon, look deeper.
the way it was formed with a typewriter trick is super interesting!
yes but i assume the typewriter thing isnt exactly as it is demonstrated... An double letter with a small space doesnt make 2 lines in the middle and only 1 on the sides... it does now because they were changed... to make them look cooler... i work with some flexo printing (that the basics are basically the typewriter one, and double registry while off a few milimeters looks very bad)
@@P4FElton oh yeah, they definitely cleaned it up for unicode
@@P4FEltonThe video showed how it looked in the Typewriter original.
Of course Unicode characters are cleaned up for readability.
This episode bring another dimension to understanding mathematics. Hope more can come forth.
The typewriter method only worked with manual typewriters. With most electric typewriters, the spacebar would fully space when pressed.
@MindYourDecisions This is such an informative video about the usage of such a symbol outside being the Twitter logo!
Thank you for clarification on this subject. I always wondered the history behind such designations.
I didn't realize that it only went back to the '60's. So, how were those common domains denoted before that, in older books?
He mentiones this in the video. The double struck is just a way to write a letter in bold on a chalkboard. Before that was created the characters used to repesent the sets of numbers letters were just the same letters but in bold.
Just like how with vectors we use lower case letters in bold but that doesnt work well on a board so vectors were denoted by underlining a lower case letter. Books lower case for vectors and books uppercase for sets are still used in print.
From what I remember vectors on the blackboard were denoted with an arrow above the letter most of the time, but I guess underlining would work as well.
Sometimes the set symbols referenced in this video were designated by simple boldface, or by boldface in a different font than the rest of the text.
Coolest video you have made yet! I love learning something I did not know about math! :D
0:07 In Indonesia, Twitter Bird's Logo is looks similar with Traveloka Logo. FYI, Traveloka is the Travel Agent from Indonesia to Order and Booking a Tickets such as Airplane, Hotels, and Villas.
I have an urge to go buy a typewriter now to try it out.
The X-windows open source software has been using that same symbol (or its mirror image) for decades. I don't think he'll get a trademark on it.
oh yeah you're right, I see this logo daily whenever I start sone X app in linux but I haven't noticed
Elon Musk loves X because X is the Roman numeral for ten, and Elon Musk has the emotional age of a ten year old.
True, that's why he started Xbank, which morphed into paypal later.
Seeing the trajectory, he will soon change the surname of children as Mux.
You’re just envious that for every $10 you have, he has $10 million
@@franksanz1044 Nope, and frankly I could lose $10 over and over again and still be ok. He can't. But he doesn't believe he can fail, and that is perhaps the most dangerous trait a person can have for themselves.
@@franksanz1044A fool and his money are soon parted.
lmao not the kid in the comments defending elon 😭
The only benefit of Twitter's name change is that we got this amazing video!
1:38 Backspace, hold on shift and press R. If you press space, it will just advance one place. On electronic typewriters (some, not all) backspace can erase one char). But Spacebar is wrong.
On mechanical typewriters, pushing down the space bar advanced half way, and letting it up advanced the other half. That's the way the mechanism worked.
@@WRSomsky Correct !
Very interesting. Hats Off to you. Genius, Brilliant. 🖖🖖🖖🙏🙏🙏
Many apps use an "X" symbol on a GUI window to allow the user to kill the app and exit. Many cartoonists draw an "X" where eyes should be, to indicate that the cartoon character has died. These uses evoke what Elon Musk has been doing to Twitter.
Because the censorship before Musk was life for the platform LOL
@@LyubomirIkoToday's X has censorship as well
I thought on a blackboard, the bold bit was done with the side of the chalk originally. Even if that’s wrong, I still think that would be cooler, but it seems a more logical way to bold (parts of) letters so it could be true 😊
I feel like for an experienced chalk user writing 2 lines is faster than
dragging a piece of chalk with high contact area across the board, thereby increasing friction significantly
@@justyourfriendlyneighborho903 It would be much faster but it wouldn’t be as obviously bolded
So X is less controlled and imperial than Twitter, got it.
**gets banned for making fun of Elon**
It will be a space controlled by an "arbitrary metric"...
(It says so in the video at 3:01 : Double-strike X : Occasionally used to denote an _arbitrary metric space_ ...)
As a data scientist who does not come from a Math background, it drives me wild when mathematicians/physicist colleagues use single letter variables for quantities - the affordances of code let you be _so much more expressive_ and clearer than just naming your variable x. Code is not a blackboard, folks!
The tradeoff is that then you'd have to explicitly write all multiplication operators, like you do in code; for example, "bunny" isn't the same as "b * n ^ 2 * u * y".
But blackboard (or scratch pad) mathematics is also not code. We can name our variables "unknown" instead of "x" but that uses up so much more chalk.
When was the last time you did some real physics? We don't just name our unknows x. They are a, B, C, D, E, F, g, h, I, j, k, L, m, N, p, Q, r, s, t, U, v, w, X, Y, Z, in lower and upper case as well as basically the same with greek letters.
Yeah...
But i could also just press one letter 'x' on the keyboard every time i need that variable 😅
I still prefer to use commonly used variable to be single or double digit names.
However you are also true. In Physics there are multiple cases when to different physicsal quantities rendered the same letter, and it is annoying.
As a GTA San Andreas gamer, I can confirm that this "X" logo is the spitting image of the gasoline brand "Xoomer" logo
Thank you! 🙂👍
Great content 👌 keep doing wonders
I didn't realize this at first despite having studied real analysis, because I only used N,Z, Q and R for naturals, integers, rationals and reals
So a mathematician sued Elon Musk for brand infringement, and settled on an imaginary number of dollars in compensation.
As long as the real component is sufficiently to the right of the origin it's a win.
@@Sirenhound When the deputy marshal of the USMS arrives at Elon's home to collect items in the foreclosure, his pocket calculator will show an "E" and he will not understand that.
"- Do you have an E?"
"- Well.. It's the first letter in my name. But you don't want to leave me being a Lon Musk, do you? Sounds kinda maffia or something."
"- Oh, if I turn it upside down it becomes a 3! Do you have 3?"
"- Yeah, sure, here have it."
with respect to the horizontal
The real component of an imaginary number is by definition zero.
Too many changes and I can't keep. So, I am dropping out with the Blue Bird.
That was an interesting little detour into history. Now I understand why it's called \mathbb in LaTeX. Thanks Phresh, I learned something today.
Changing the logo is a big mistake. Twitter will realize that in a year or two and will eventually go back to its original logo. I can bit on that.
No. The logo and the name of the app were changed because it is no longer limited to being an app that just lets users 'tweet'. It will eventually allow users to post audio, image, video, and written content. It will also incorporate banking services and financial transactions. It will be like ebay, paypal, twitter, whatsapp, and RUclips combined.
The letter x is used in algebra for an unknown value that is yet to be determined or a variable that could be anything. The X app will let you do anything that you may want to do online and its functionality will continue to evolve, so its true value in the long term is yet to be determined. The new name makes perfect sense.
No matter how this ends - changing back the logo won't be required either way. I am quite interested in seeing how many people are interested in moving a big chunk of their every day life into the app they used for tweeting out occasional fart jokes and memes. It probably has less to do with how much of a genius Musk is, but much more with how moronic the users are.
@@Schmidtelpunkt- What do you think Jack Dorsey originally made Twitter for. Certainly not for any practical, Intellectual discussion.😂
@@MrAlRats It will allow to post audio, written, image and video content... Like... In normal tweets???? And I'm not too sure people would leave their money in the hands of twitter after witnessing the um. Ongoing hijinks.
@@MrAlRatsand cheese pern as well.
Nice pronunciation of the german word "Zahlen" 🙃
Very nice short history video.
1:26 - That doesn't work. 😡
When I first saw the logo, I knew it looked like a math symbol, like the letter for all real numbers and stuff.
I still can not believe my generation has to get all this, first was the CP being removed, then he told us to touch grass and now he changed the name to X. I can't save the world like this, is too much sa😢
Well his other company is called space x. So its not that confusing as to why he chose the x.
looks like Musk wants Twitter to go the distance XX
huh cool, i knew abt the blackboard but never knew abt it on the type writer
TBF it's not the same, the typewriter version is just the same letter twice with a slight offset, while \mathbb is a specific set of additions to each letter (e.g. for N, the vertical lines aren't doubled).
@@erikkonstas yeye im aware its just still cool i never heard abt it being used like that
Advise to Musk: Mind your decisions.
So does this mean that mathematicians are soon going to be sued by Twitter/X for trademark infringement?
No. This logo is a basic unicode that is available pretty much everywhere, and it can't be trademarked.
Not to mention that mathematicians used it first. If anything, mathematicians could sue HIM for copyright infringement!
@@ThreePointOneFou Dude, this logo is an unicode. It can't be trademarked or copyrighted.
@@rahyan. I know. I was being humorous.
@@ThreePointOneFou Oh, sorry, I didn't catch that, lol !
It would have been doubleplus awesome if we saw the doublestriking happen with a realtypewriter.
It probably was suggested by the graphic design team without knowing it's something that has a specific purpose
reason behind the X logo is because he wants it to resemble his space X family name of companies
Guarantee his logo has nothing to do with math... or logic. I bet he liked the way it looked. The change is the result of him doing whatever he wants. He likely will change it again and again every month. Any time he finds something (in his opinion) cooler.
How many times has he changed the space x logo?
@ge2719 idk cuz idc about space x. I don't believe in spending billions of dollars to run away from earth to Mars where its lifeless and just dirt. I also don't believe in polluting the atmosphere with rocket fuel in the process. Anybody who doesn't care about earth isn't worth my time.
Is it possible to have the X trademark and own the design copyrights? or anyone can use that symbol?
ahh yes makes more sense than elon just making the change for space x, but id rather to belive more this than the boring reality
I allege that the symbol is a double T, one inverted, for Twitter.
XX : Twice distilled 😊
I used to hate math ... But when I found that music is math ...I loved it 😊😊😊
Music _uses_ math to explain phenomena, just like Physics does, it's not a formal science, let alone the same thing as Mathematics; unfortunately, you often see such sentences as "Music is Math." in inspirational quotes.
@traeza777 Guess what? EVERYTHING is math. That's fun! :)
Anything is literally math. Nature is math herself.
@@militantpacifist4087 Yes, math with tens of thousands of axioms which are part of an ever-changing knowledge base because "proof by experiment" doesn't fly in real math...
@@erikkonstas That's true and the inspirational quotes are true ... 🙌🙌🙌
I prefer a bird image than a x meaningless. Is a kiss sign? Twitter is a bird.
A double-strike X. Hence more precisely XX. Which (in human biology) represents _female_ , so in some ways still "a bird"...
Is this your plan to change the ending? One problem at a time.
?
I can't do that on my keyboard
Backspace, hold spacebar, press a letter
Because your computer is not a typewriter.
@@FenrizNNN oh ok
Surely the symbol more accurately represents what Twitter is and how it is utilised by users.
Now Elon will retroactively sue all mathematicians for infringing his company's logo copyright
whatever im just gonna change the logo in shortcuts
I do not know the new logo represent better or worse than the previous.
wait what? can anyone explain why? i was totally off screen and i cant see it again
It's same like the Programming Languages name like C and R. If C is the Ancestor of Modern Programming Languages such as C++, and also R is the Programming Language for Data Science replacement for Python. And also, Elon Musk changed Twitter into X is the Great Idea to Modernized the Super-Apps.
The X is more related to Roman letters, which in contrast, the Blue Bird is more international.
With such move of identity, Twitter might lose users because this new identity would make people think it's less international but more Westernized.
I knew that the X looked like a math symbol
Did PResh ever explain tht character in calculus used to show a partial deriviative. The one that's not quite a d and not quite a lowercase delta, but looks like a hybrid of the 2 characters?
Not that I recall, but short version of its history: it was introduced by French mathematician Nicolas de Condorcet in 1770, picked up by Legendre as the partial derivative symbol in 1786, then discarded by him, then reintroduced by Carl Jacobi in 1841. It's basically a modified cursive _d_ , just like the integral symbol is a modified long _s_ .
So all mathbooks will have to pay Twitter when they use their soon to be trademarked logo ... I hope that any attempt to trademark go awry
This is taught during week 1 of your basic CSU Algebra Course. Thank you for the reminder. However, the link to Twitter is a non-sequiter.
Yeah 💙
1:50 Am I missing out on something? Since when does 0 belong to N? somebody please explain
ISO defines N as containing 0, but both definitions are used.
To disambiguate, N subscript 0 and N subscript 1 are used.
To ambiguate, N superscript 0, N superscript +, N superscript *, Z supercript +, Z superscript + subscript 0, Z subscript > 0 and Z subscript >= 0, and W are also used.
@@chri-k Thanks a lot for that
“X is for metric space”
Americans: Noooooooooooooooo
Twitter flipped the bird to the bird…
Math or not all i see now is a public porn app for everyone to see
Real, the 2010s will forever be in my head. Times were simple❤
I think the bird flew off
I believe the new name corresponds with Elon Musk's SpaceX company.
This logo reminds me of microsoft excel.
2:05 since when was 0 a natural number?
This just means Elon can now sue mathematicians for trademark infridgement.
X for his excessive hair
Poor Elon, each time he tries to be original it turns out to be old stuff: hyperloop concept, the Boring Company name...
As interesting as the history is, it doesn't match the surprise of math click-baiting.
Elon musk is trying to make Twitter user smarter🗿
Twitter changed their logo because Elon Musk is a man-child with the mind of an edgy 13-year old who thinks the letter X is "super cool, yo!" and for no other reason.
Cuz it’s an ex of thread
Compare it to Linux' X-window system logo... X-D
Wait, 0 is natural?!
sometimes yes and sometimes no
Nice
Nah it's just a Space X
Jk obviously
As Polish man i am proud of Stefan Banach and Pre-ww2 Lviv School
Cool.
cool
Xay' Arabic for Thing
♦
That's not how you say Zahlen
𝕏
Make Elon's "X" -> "Ex"
😮
The MuskCult must feed on content.
Got it 👀👍
These letters can be made in LaTeX with \mathbb 😀
𝕐 𝕥𝕙𝕠
The zero isn't a natural number. 🙄🙄🙄
Depends on which you look at it, some think they are, some think they aren't
@@cubing7276 The number one is the first natural number according to the Peano Axioms.
@@redjohn8870 And 0 is the first natural number according to the von Neumann construction.
IIRC it turns out this has to do with the education system, and I've read that France teaches kids that.
Does the concept of zero never exist in nature?
What do you have if you had two apples and you ate two apples?
i never was on twatter, and now that elon has screwed it up even more, i'm even less inclined to get a twatter account.
𝕏
Oh, no!
Anyway...
🙀🙀
Buying Twitter was a monumental mistake by Elon Musk.
He could have spent a tenth of the money and set up his own platform and brand instead of buying Twitter at an overly inflated price and then rebrand.
If he made his own, I think it would've been much harder to get people join it
The point was to take down the world's premier propaganda and corrupt narrative regime and expose it for what it was. Did he use his own money or DoD he use other funds? There are some very interesting things about Elon, look deeper.
But then we would have never had the concrete proof that Twitter and the American government were both corrupt as hell.
@@SLM-hf1cr Bless your heart.
No, trying to attach some significant meaning to this garbage logo is sad.
teka teki