All possible pythagorean triples, visualized

[@3blue1brown]

As to the "you're" typo at 1:20, I keep telling that second blue pi creature (Randolph is his name) to learn his grammar, but for whatever reason, he just never listens and focuses only on his math lessons.

[@ganaraminukshuk0]

I scrolled down to the comments just to see if anyone caught that.

[@NikolajKuntner]

Hey 3Blue1Blue, thanks for another great video! For fun I've tried out to make Randolph smile (self.play(randy.change_mode, "happy")), but for some reason it wouldn't let me. Any idea why that would be? Moving works fine. Also, I'm gonna do videos on functional programming and logic foundations (no animations) and was wondering how I could do life LaTeXing, as I want to avoid handwriting. Do you have any idea how to approach this? Thanks for your math content!

[@EMEKC]

Shame on the second blue pi creature.

[@ConnorDuzMinecraft]

What are the other ones' names?

[@harootpashayan]

hey I am an Unemployed Computational Mathematician and help or guidance into getting that Remix gig? h4root.com I obv code and have worked on Drivers, Gaming Industry, Low Latency Streaming etc Ableton Algorithms

[@felely]

This is hella interesting when you have an English essay due

[@narwhalestorm9881]

For me it's a Dutch essay lol

[@realbignoob1886]

Lmfao

[@LukeLuke9690]

I swear

[@Sfaegbe]

Why is maths interesting when you have other things

[@alperkarakurt418]

Lmao how'd you know??

[@primephoenix1.077]

Special Thanks to 1. Pythagoras 2.Reńe Descartes 3.Bernhard Riemann 4.Grant Sanderson For this Marvellous Video😄

[@peepinlechien2560]

one day, someone will write french names correctly

[@coriandre8280]

René please

[@Targeted_1ndividual]

And whoever made that tablet in 1800 bc

[@ermenleu]

@@Targeted_1ndividual actually that was Pythagoras his great-great-great-... grandfather ;)

[@rithvikmuthyalapati9754]

3European1American

[@vib0ng508]

imagine being a 1st grader doing their shapes homework and searches up “triangles” and gets this

[@vari1535]

Oof, just oof

[@pedroivog.s.6870]

Up

[@NikolassAvi]

"i'm four parallel universes ahead of you"

[@NStripleseven]

PedrivoGamer 3,14 Up what?

[@글랜굴드]

@Mark Smith Teacher would give that kid an F for copying haha

[@generalralph6291]

I needed this today. I’m building a house made entirely of Pythagorean Triples.

[@spearmintage]

yuki nagato

[@felely]

You’re... you’re what?

[@sameepdoshi]

Yeah Build it in front of my school examination hall

[@Nylspider]

Oh cool Wait hold up...

[@beardwright6917]

Can you pm me a photo of what it looks like as an architectural drawing? I’m pursuing civil engineering.

[@onlynamelefthere]

At some point you think you have seen everything, which is to say about a "simple" topic like pythagorean triples. And then comes this video and blows your mind with the elegance and simplicity of it all. And you will be reminded, there is no such thing as "simple topics" and "everything to know".

[@3blue1brown]

I couldn't agree more with that last sentence!

[@selfcentered3406]

Truth.

[@claudiaassis777]

onlynamelefthere hey. If you get an already pythagorean triple and Square them, why don't you get a "fermat's triple for n=4"?

[@theSoberSobber]

Agreed😊💐💐💐💐👍

[@SC-zq6cu]

Claudia Assis Say a,b,c satisfy : a^2 +b^2 = c^2 Squaring both sides : (a^2 + b^2)^2 =c^2 Or, a^4 + b^4 + 2*(a*b)^2 = c^4 Whereas Fermat's triplet for n=4 satisfy: a^4 + b^4 = c^4

[@jacheto]

I LOVE THE FACT THAT YOU ARE POSTING VIDEOS EVERY TIME PLEASE NEVER STOP

[@jacheto]

i also love the fact that is in 60fps so thank you

[@Talaxianer]

Why? Do you watch in 0.5x speed?

[@error.418]

It's subjective, not axiomatic

[@Treegrower]

60 FPS / 1080 P MATH WHAT THE FUUUUUUUUUUU

[@TheLastScoot]

Higher framerate means more data. Also, at a certain point, some people can't tell the difference. Barely any humans would be able to tell the difference between 1000Hz and 2000Hz, so doubling the amount of data used serves no purpose.

[@johnrickert5572]

Absolutely beautiful! I have a Ph.D. in Mathematics and have never seen a discussion of Pythagorean Triples in terms of complex numbers before. Thanks for this great video!

[@anonargentum9135]

John Rickert Doctor, i'm interested in your profession since i'm going to study and become an applied mathematician and I wanted to know how it has been to be a mathematician :), greetings

[@johnrickert5572]

Thank you for your reply. Well, I was in Pure Mathematics instead of Applied. I believe that Applied Mathematics would give you very great flexibility. Academia may or may not be the best environment to be in. Even though I no longer work as a mathematician professionally, I still study mathematics and find it fascinating. I have never regretted the time and effort I have put into it. I hope that you find it rewarding.

[@nucleartree8159]

@@danielwylliel.rodrigues1015 you know we are both a year late. KZbins recommendation algorithm is retarded

[@wacamac1006]

@@nucleartree8159 even more for me

[@Meminjo]

Would you mind sharing what you wrote your doctorate about? Thanks!

[@sicoree]

치직... 한국인... 깃발 꼽고 경례..

[@쿠키-u5s]

경례...

[@Kommaa-i4q]

치직,,,

[@게쉬]

이거 이해한분 설명좀..ㅠㅠ 경례

[@랍]

반쯤 지나고부터는 자막이 안나와서 뭐라는지 모르겠음

[@lybaggie2817]

🇰🇷 경례

[@theseal126]

You should make an ”Essence of topology” series. Topology is very visual but can be hard to describe with just numbers. I think ur animations would make a great fit for teaching topology You could cover topics like: Projective space, Equivalance relations or quotient space, affine geometry, hyperbolic geometry. And then u can end of the series by briefly giving an understanding to the poincaré conjecture.

[@glitchy9613]

I'd honestly love for 3b1b to talk about hyperbolic geometry

[@theseal126]

@@glitchy9613 ikr, hope he notices how many people that have liked this comment so that he makes a series

[@glitchy9613]

@@theseal126 Wait shouldn't it be called "Essence of geometry"? most of those topics relate more closely to geometry than they do topology.

[@theseal126]

@@glitchy9613 Oh, true!! Essence of geometry sounds better. Though maybe some people might get the wrong idea so maybe essence of non euclidean geometry

[@mihailmilev9909]

@@theseal126 this sounds like a beutiful idea, I need this

[@shiladri007]

This is quite simply the best Maths learning resource on the interent...a service to humanity!

[@jovdsss]

givemetruth when you acquire K N O W L E D G E

[@polypus74]

Shiladri Chakraborty: Absolutely Correct. These videos are fantastic

[@ankurdubey8648]

Maths as a service

[@nathanielsharabi]

>has final exam in 2 days >*sees 3blue1brown uploaded new vid* >"the bloody exam can wait"

[@FacultyofKhan]

It seems that the meme-arrow trend I started last week has carried over to this video as well! Good, good, muahahaha

[@evanoc]

Faculty of Khan What? Greentext arrows have been around for years, lol

[@FacultyofKhan]

I meant using meme-arrows in the comment section on 3b1b's videos. I made a comment last week on the pi/prime irregularities video using meme-arrows, and was (rightly) made fun of for it. It's amusing to see the trend continue here.

[@zoellazayce6796]

Further Maths right

[@da_bes]

don't kid yourself, you didn't start shit

[@OskarElek]

The beauty of maths is that you can take something seemingly trivial and boring, and make it extremely intersting by digging deep enough. The beauty of 3b1b is that he does it for us :)

[@hreader]

This is exactly what schools should be doing but a lot of them don't.

[@maane28]

"The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful. If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living.” - Henri Poincaré -

[@seanleith5312]

He studies the topic that provides fund. Many scientists study global warming, not because it delights. They know that's a bunch of lies, but that's easiest to get money from.

[@pranaygupta6688]

@@seanleith5312 climate change denier? 99% of scientists, especially climate scientists, believe in climate change. AND, climate science by far does not make the most money... What about medical science (doctors, pharmaceuticals) or engineering (especially for companies like Boeing and Lockheed Martin that get military contracts)?

[@seanleith5312]

@@pranaygupta6688 All you know is repeat the propaganda from your school and liberal media. Do you have a brain to think for yourself?

[@Hobbit_libertaire]

@@seanleith5312 And why don't you believe in climate change ? Have you any proof to sustain your belief ?

[@seanleith5312]

@@Hobbit_libertaire Who said I don't believe climate change? Climate change happened since the earth existed, it's always changing, it will be forever. What I don't believe is: Man-made CO2 is the driver for climate change. There is no evidence to CO2 plays any meaningful way. And it is theoretically close to impossible that CO2 play any meaningful role. You are indoctrinated to believe in this religiously. It is disgusting to use science as a political tool.

[@nitinmadan4009]

What an amazing visualization. A few years back, I tried coming up with a proof to find an elegant proof for finding Pythagoras triplets. Didn’t succeed. But this video just gave me a whole new perspective. Cheers!

[@peter10003]

Yes, I thought the Pythagorean triples from Sumerian times (1,000 years before Pythagoras lived) were found by trial and error. I never guessed that there could be an algorithm for it, let alone a simple(?) algorithm as described by this video.

[@Joe72521]

Does anyone ever feel saddened by the beauty of these videos? It's not just, "I wish math was taught to me this way", it's that I now think there's got to be this beauty in so much more, and my eyes are just not open to seeing it.

[@jyothidudupa240]

Exactly! Well said!

[@magicianwizard4294]

For sure. Normally I'm there trying to cram my head with as much math as it can fit in for some test I don't give a crap about, and I don't like the math at all. But there is hidden beauty waiting to be discovered, and I am waiting for me to discover that I CAN discover the hidden beauty in mathematics.

[@vencedore1000]

I usually feel saddened while watching these videos when I realize just how little I know, and worse yet, how I’ll never be able to know everything there is to know in maths. Not only because we lost a lot of valuable information as time went on, but also because it is such a broad field.

[@joefagan9335]

Grant, you are simply amazing. I've a life long passion for maths and took an M.Sc in maths just for fun. Thank you so much for these videos. Imagine if Einstein or Feignman or even Euler or Pythagoras could have seen your videos, they would have been blown away. You're taking the beauty and structure that they could see and shown it to the masses. You are the ultimate pedagogue. Thank you.

[@Ir77iridium]

I bet Euler saw this when he became blind

[@macmos1]

You have an incredible intuition and perspective on mathematics. Please never stop sharing your knowledge with us!

[@soheilsanati1941]

In Euclid’s Elements there is a description of all the possible Pythagorean Triples. Here’s a modern paraphrase of Euclid. Take any two Odd Numbers m and n, with m < n, and relatively prime (that is, no common factors). Let A = m x n; B = (n^2 - m^2)/2, and; C = (n^2 + m^2)/2. Then A:B:C is a Pythagorean Triple. For instance, if you take m = 1, and n = 3, then you get the smallest Pythagorean triple 3:4:5.

[@null_pointer_deref]

It's essentially the same formula that we get when generalizing the squares of complex numbers for these triplets. It's incredible how many proofs you can do with complex numbers, even in things you wouldn't normally expect them to appear!

[@dodobow]

이런 영상을 볼때마다 수학의 신비함에 대한 인식이 점점 커져가는 거 같아요. 참 끝이 없고 흥미로운 학문이 수학이 아닐까 싶습니다. 흥미롭고 재밌는 영상 감사드려요!

[@samgrattan5465]

That is awesome and good for you! I’m replying in English because I know KZbin has a translate function, so I hope you can understand this message clearly. Math can truly be a beautiful subject to explore, and videos and visualizations like this make it possible for everyone to experience it. I get excited just thinking about the future of math education, since I know that people like this will be able to make even the most esoteric topics approachable.

[@lanerutledge6850]

Exactly Dude. I hope google translates this correctly. But really math is crazy because of the way that hundreds of equations can make such organic and natural shapes

[@dog24173]

한국인이다!!

[@ryanchowdhary965]

I like math, I listen to math every night to cure insomnia.

[@Toby-em4vr]

@@samgrattan5465 Bad news: Google is really bad at translating English to Korean, and idk why. Anyways, I completely agree to your comment!

[@MegaMoh]

For anyone who wants to graph the intersecting parabola, the general equation for each parabola is x=[+/-](y^2 / 4(n)^2 - n^2) where "[+/-]" is plus or minus and "n" represents the nth parabola away from the origin. In latex, it's written as: x=\pm\left(\frac{y^2}{4n^2}-n^2 ight) for those who want it written neatly. The straight line equations are as simple as taking each coordinate that from the intersection (a,b) and making the equation y=b/a * x or y= \frac{b}{a}x in latex NOTICE: A parabola written in the form of ax^2+bx+c has a=1/(4f) where f is the focus. I noticed that the focus for those parabolas using the equation is n^2 so that the focus of all of these parabolas is it's number squared. then noticed that the focus changes when the "c" term changes in the equation, then the focus get translated by "c" and what turned out is that the "c" term in the above equation is also n^2! so n^2(the focus) - n^2(translation by "c" term) gives 0. so that all of those parabolas have their focus at the origin and each one is away from the origin by n^2 distance! Let's work together to figure out why this equation works with these givens

[@StarNumbers]

A side note: The creation of the parabola equation started by trying to determine the trajectory/path of a cannonball. The framework takes the parameters of gravitation and the earth below but the earth must be flat. Yes, the earth is flat (and stationary), while thinking of the ball earth as "Close enough for govt work" is just that.

[@kimjiwoo9557]

THE GOATTTTTT

[@swurviie]

Fantastic visualization of the Pythagorean theorem in the intro

[@blockyhour4224]

The fact that I finally understand what he's talking about makes it SO much more interesting

[@brucefoote540]

I have a problem breathing every time I watch a 3b1b video because the concepts exposed there are breath-taking!!! Thank you Grant!

[@kaspersolberg1938]

Even as a mathematician, this channel is mind-blowing and so well animated and explained. Thanks a lot. If only I had 3B1B when I studied complex analysis back in the 90´s.

[@Cesariono]

Oh my God. One of my biggest motivations for studying programming was precisely this: a visualisation of all of the pythagorean triples. I can't believe you've done this. Thank you.

[@GalacticSlayer]

Mithra and now you studied programming for nothing jk programming = low effort, high reward

[@Aayuuush721]

@@GalacticSlayersaying programming is low effort is crazy

[@SSJProgramming]

Seriously ... unbelievably amazing content. Keep it up!

[@Kolinnor]

Those animations are outstanding.

[@Pablo360able]

I came up with an entirely different way to generate Pythagorean triples in middle school, though much less visual, using the property that x^2=∑(1≤i≤x)2i-1, i.e. that squares are the sums of odd numbers: Any expression of a number's square in terms of a sum of squares that does *not* start at 1 corresponds to a nontrivial Pythagorean triple, where the hypotenuse's square is the sum when the sequence of odd numbers is extended down to 1. You can generate such a series by choosing the number of odd numbers to add, which can be any factor of x² with the same parity (both even or both odd) (there's a valid interpretation for when n>x, though it's a bit weird), then choosing the *middle* of the sequence to be x²/n. Someone check my math.

[@sidharthghoshal]

Ah so basically if for some j != 1 we have that 2j+1 + 2j+3 + 2j+5 ... = m^2 then obviously 1+3+5... 2j-1 = n^2 and 1 + 3 +5 + ... 2j-1 + 2j+1 + 2j+3 ... a square number as well. That's a nice observation!

[@hobby_Betelgeuse]

和訳確認しながら英語のリスニングも鍛えられるし、数学の知識も深められるしで良い動画

[@duffyoxopatt3950]

Man i love your videos! I was pretty bad at maths in school, but you explain so well i can understand everything. And your voice would cure cancer.

[@aresharesh8671]

This is absolutely beautiful. Thank you so much for posting these videos. It is such a great pleasure to watch and learn the topics here with your incredible visuals to lead the way. I look forward to more amazing content in the future.

[@matthewao]

He literally blew my mind with the animation in the first 15 seconds of the video

[@tommiweck8660]

It's fun how KZbin recommends me this just after a math competition where I could have used this information and saved some time.

[@hammerfall321]

I love how the students get angry when the teacher introduces complex numbers.

[@milojacquet7507]

I remember discovering this method a few months ago and being amazed about how is generates these triples. When you showed that it generates multiples of every triple, that was incredible! I had no idea that it generated every triple. Also we met at that café at Stanford completely coincidentally, remember? That was amazing.

[@3blue1brown]

+Milo Jacquet Oh I remember. Hope all is well!

[@milojacquet7507]

Yep! Recently I've been learning about a continuous function that is nowhere monotonic. It's quite strange!

[@SpaghettiToaster]

Milo Jacquet the weierstrass function? 3b1b could make a cool video on that I bet. It has a pretty badass look to it.

[@rudboy9599]

SpaghettiToaster that's the one that's like an infinite sum of cosines right? It's all jaggedy when you zoom in. It's also continuous everywhere but differentiable nowhere, right?

[@quantummath]

Dude, I love your channel, keep up the great work.

[@jibran8410]

The amount of work it takes to make these vids....You deserve more subs man and you don't even put ads in ur vids.wow

[@bazboy24]

Mathematics displaying its beauty, taught by someone who is in love with its beauty

[@78anurag]

I did all calculations myself alone and after 2 hours of factorising algebraic expressions I reached at many formulas but this is the most simple one: z= (x²/l) - y For a Pythagorean Triplet x²+y²=z² and l= z-y Edit: Another one: z= (x²+l²)/2l

[@Kantharr]

I like using (x²+l²)/2l for my equations. It has proved to be useful with solving the Perfect Cuboid problem.

[@78anurag]

@@Kantharr interesting

[@noa.leshem]

you're on fire WHAT IS THIS INSANE POSTING SCHEDULE

[@Treegrower]

Watching this high is the craziest shit ever

[@klipslip1977]

FACTS

[@petermarquez949]

DAMN IM BOUTA DO THIS

[@returntolifeband]

holy fuck if Bob Ross blows my mind I can only imagine what this will do

[@6884]

username checks out

[@prabhindersinghsahni3015]

ᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟ ᅟᅟᅟᅟᅟᅟᅟᅟ ᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟ ᅟᅟᅟᅟᅟᅟᅟᅟ ᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟ ᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟ ᅟᅟᅟᅟᅟᅟᅟᅟ ᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟᅟ v

[@LorJSR]

3Blue1Brown - This videos are incredible, and I love them. There must be so much work that goes into making one of these, I can't even imagine. I'd love to see a behind the scenes video about how you go about planning, writing, voicing and finishing these things. It's a thing of beauty and a joy forever, it must be like making a porcelain vase - incredibly complex and time-consuming, and producing something outstanding. =O

[@shashanksingh3594]

your explanation and video is so awesome that after watching the first 6 minutes, I immediately wrote a python script which generate these pythagorean triples

[@cerwe8861]

You can also do the Pythagorean tripple Generator algebraicly: a²+b²=c² a²=c²-b² a×a=(c-b)×(c+b) a/(c-b)=(c+b)/a=u/v ¹ (c-b)/a=v/u ² (c+b)/a=u/v ¹+²=³... Just Kidding ¹+²: 2c/a=(u²+v²)/uv c/a=(u²+v²)/2uv ²-¹: 2b/a=(u²-v²)/uv b/a=(u²-v²)/2uv Now we can say that numerator= numerator and denominator=denominator So we get a=2uv b=u²-v² c=u²+v² The same result.

[@Z7youtube]

that ¹+²=³ 😂

[@gabitheancient7664]

huh cool

[@user-db4lk7yg3o]

did anyone else notice that these are the trig formulas cos2x = cos^2(x) - sin^2(x) ; sin2x = 2sinxcosx

[@jimsmindonline]

So elegant and beautifully​ illustrated. I remember noticing parts of this when looking at triples, it seems so obvious now!

[@drddff9788]

This is one of the most beautiful things I've seen in a while

[@nicholasleclerc1583]

4:15 Yeah, that’s because of Euler’s identity: 2+i is basically sqrt(5)*e^(~1.10715i), so you double the angle and square the sqrt

[@nicholasleclerc1583]

@�̴̀͌̕ The Euler Identity happens from realising that, if you interpret the concepts of an angle and of an exponent in a weird way : r*e^(i*x) = r*cos(x) + r*i*sin(x) Where x is an angle *MEASURED IN RADIANS, NOT DEGREES; VERY IMPORTANT* Essentially, you just plug in the value of the angle (IN DEGREES) for the x power of e, then you discard the "rad" unit And r is the *square root* of _the addition of the squares of the real number and the multiplier of i_ So we now know that you can rewrite additions of real numbers with a multiple of the imaginary number _i_ with a single term, that is use without having to add 2 or more things together So, since 2 + 1*i is such an addition, we can convert this into a single number, "r*e^(i*x)", where, again, r is a square root involved with the real number (2) and the multiplier of i (1); but when we square this "r*e^(i*x)", then we square "r", therefore we square a square root, tus we get the number that's inside, which is, again, _the addition of the squares of the real number and the multiplier of i_ , which is "2^2 + 1^2", or "5"

[@nicholasleclerc1583]

And x is the angle between the line connecting to the origin of the Real-Imaginary graph and the complex number and the x-axis; if the complex number's above the negative values of the x axis, then the angle's between 90 degrees and 180 degrees; and if the complex number's under the x axis, then the angle's negative

[@brotherseraphim9700]

Very grateful; just what I was looking for! Had a suspicion that Pythagorean Triples to All Triples were as Rational Numbers to All Real Numbers, but wondered how to get at showing it. Thank you for the missing clue of using the Complex Plane, and for the unusually clear and nicely paced presentation!

[@seeahcompany890]

시작 : 피타고라스는 내가 또 알지 1분뒤 : 자..자막을 켜볼까? 2분뒤 : 자..자기전에 보는영상인가?

[@sketchartyst]

This is honestly so incredibly beautiful. Seeing this made me emotional

[@erichschmidt1328]

I am always surprised by a 3blue1brown clip. And I am always a little bit frustrated that I never saw these interesting things for myself, although I had complex numbers, calculus, linear algebra and so in during my study. Congratulations for your fine Clips and your beautiful animations.

[@themeeman]

Please do a full video on fermats last thereom and how it was solved. I have read up on it, but I think that a video from you would make it simpler to understand.

[@ptyamin6976]

all i know is that it has something to do with modular forms which is connected to algebraic geometry. in any case, thats a lot of deep background material and thats why i think it would be impossible to understand in even an hour long video

[@dudeman3981]

Clingfilm Productions There's a reason why it took the worlds greatest mathematicians over 350 years to solve it.

[@Angel33Demon666]

Dude Man Nah, its solved by Fermat himself. It's just that the proof is too large for the margin to contain. :')

[@burthpinmc5489]

Angel33Demon666 Oh not again! You sneaky fermat

[@Nothing_serious]

Apparently his proof is too long to contain in a video.

[@my_me_my]

중간에 자막이 없는 건 한국인 난이도에 맞춰서 영어까지 직접 해석해야되는 교육계의 참된 뜻인가

[@user-zz4ct6sz8d]

창의융합형인재 양성중

[@아하-u8k]

ㅋㅋㅋㅋㅋ실전! 영어 듣기 평가

[@mr88cet]

I “ain’t thunk” through yet the ramifications of this, but I noticed that, although this pattern of interlocked parabolas has a 6-8-10 right triangle but no 3-4-5, it *does* have a 4-3-5 right triangle. That’s a result you get from scaling, as you pointed out. So, in other words, if you reverse your axes you can achieve at least some effects of scaling of complex numbers.

[@DiscoMouse]

love the peeved pi at 6:00

[@ToneWarzMusic]

-_-

[@MinopolisMc]

◕_◕

[@saitaro]

つ ◕_◕ ༽つ

[@markenangel1813]

_-_

[@DevilSpider_]

that mascot is really nice pi

[@Arithryka]

3:01 never questioning the validity of the complex plain again, this is just too brilliant.

[@vari1535]

It is the complex _plane_ that is valid, not the complex plain, you moron

[@denelson83]

@@vari1535 Besides, "complex plain" is an _oxy_moron.

[@raza8442]

Your visual representation is the best, as I have seen ever.

[@djyoon123]

Thanks a lot, great description, inspired video. Wow! The square of every integer pixels except those at diagonal go to Pythagorean triple. It shows us a fabric on how complex plane and complex number is defined.

[@tasiemiecuzbrojony]

Rewelacyjne opracowanie problemu, doskonałe wizualizacje, jestem pod wrażeniem... Zawsze ciekawło mnie ile jest tych trójek pitagorejskich i jak je szukać. Dziękuje, pozdrowienia z Polski

[@merp1998]

Watching this video was a magical experience. Thank you 😄

[@anotherone3641]

8:42 6+8i is not possible, but 8+6i well acceptable. The main rule is the real part must be greater then complex becouse u^2-v^2 > 0 must be.

[@forrest3797]

Interesting, but why does u^2 - v^2 has to be greater than 0 ?

[@darshdodeja]

@@forrest3797 Yeah why?

[@allymacmullin5952]

@@darshdodeja I'm not entirely sure, but I think its because it represents a length/distance, which can't be negative

[@smiley_1000]

But neither 9 + 12i nor 12 + 9i are hit

[@gabrielleao2816]

​@@smiley_1000 But 4i + 3 is

[@ryanchowdhary965]

I like math, I listen to math every night to cure insomnia.

[@patstevens8970]

Finally - there in front of my eyes I finally realized/understood that “I” is not so imaginary after all and an example of the absolute necessity of the imaginary number system of the plane..... This is really beautiful!!!

[@petewade1]

As the mathematician who finally discovered the formula to generate every possible Pythagorean triple back in 1998 (the Wade-Wade Theorem), I have an immense appreciation for this video. Nice work!

[@kantaki]

A video about quaternions would be amazing.

[@3blue1brown]

+Maik Klein Just wait...

[@fossilfighters101]

3Blue1Brown Woaahahahahaha I am excited

[@gustavodelarosa3384]

@@3blue1brown and wait and wait ......

[@willoo2873]

Maik Klein 2018, 10 September, that quaternions vid already exists

[@crnbr]

아 자막 반만 만든거 실화냐.. 똥덜닦은기분 후.. 어차피 이해못할거라서 참는다..

[@m1nsuii20]

엌

[@호우-m4m]

닦을려다 휴지없는 기분

[@한성운-s4m]

닦는데 휴지 뚫린기분

[@mgu3241]

yes

[@rahimeozsoy4244]

Yes

[@alokyes]

the best animations in the whole universe

[@maruthasalamoorthiviswanat153]

Sir, This is unbelievable, squaring of complex numbers generates pythagorean triples. Really great information

[@vardhanshah2810]

Only this channel has till now made me able to visualize a plane with complex numbers. I feel so different in the inside. Amazing vid

[@hugosales8102]

"What's you're favorite proof?"

[@ypey1]

he is better at math then grammar

[@HolmAdrian]

than*

[@GamerFilesnet]

than*

[@ericespinoza1548]

I was wondering if anyone else noticed that lmfao

[@RedTriangle53]

I love the one sentence proof for the laplacian operator in polar coordinates. "trivial and left for the reader as an exercise."

[@scottbowers6646]

This is so amazing! I discovered a very similar method on my own to produce pythagorean triples on my own and used it on my application for college as the evidence of talent part of my application to major in math. It's great to see 3Blue1Brown cover this as he has some insights that I never noticed when I was working on it.

[@ousooners5193]

This is not a even close to being a recent or novel way of finding Pythagorean triples. If I saw your application I would think you're a decent plagiarist.

[@black_wink1649]

the Whaler Why wouldn't you talk about your personal projects in an application? Unless it's graduate school demonstrating your passion for the subject is perfectly acceptable.

[@glialcell6455]

Dude, Euclid figured this out more than 2000 years ago.

[@mamalittlefoot1491]

This is so beautiful! Thank you for sharing your knowledge and time to produce this aesthetic video :-)

[@keremardicli4013]

This channel never ceases to amaze me.. unbelievably good...

[@아하-u8k]

오 흥미롭습니다! 안될과학-힉스입자 보고 홈 화면에 알고리즘으로 뜨길래 한번 들어오게 됐는데.. 역시 시험만 아니면 수학은 참 아름답단 말이죠 ...ㅋㅋㅋ 피타고라스의 정리를 증명하는 방법은 말씀하신대로 그 방법이 매ㅡ우 많고 보통은 좌표평면상에 나타내 직관적으로 풀이합니다. 전 실수평면에서만 다뤄봤는데 복소평면으로 보니까 또 새롭네요!! 영상 잘 봤습니다 : )

[@아하-u8k]

??? 길이가 정수가 아닌 유리수인 건 단위원으로 푼 부분에서 감탄이...

[@김일욱-i5o]

@@아하-u8k 피타고라스 요점을 보니까 꼭 어떤수를 더하면 갇은값이 나온다는것과 피타고라스를 이용한 로또 번호를 활용하면 되겠네요 25를 기점으로 잡고 나온숫자를 중심선에 위치해서 피타고라스 정의를 내려서 하면 해답이 나오겠네요....

[@1cubealot]

Hello hello!

[@JaLikon65]

*Every 3blue1brown video:* 1. Take the coordinate plain. Here, our problem can be reframed and explained fairly simply. Our task is to find [x] 2. Just kidding, throw away the standard coordinate plain. Actually, take the complex plain. Here, our problem looks more complicated, and in some ways it is, but consider how one might solve for [z] 3. Some mathematical steps later... 4. As we can see, [z] perfectly solves for [x] Moral of the story: Might as well always use the complex plane :P P.S. This comment was not meant to be sardonic; it was only a fun observation I had. If you happen to see it 3b1b, please don't take it offensively. I, like everyone else here, absolutely love your videos. Thank you for making them.

[@fossilfighters101]

+

[@Kualinar]

Some times, taking the route that looks harder or more complicated is the best, simplest, easiest way.

[@matthewto7406]

Jordan Ellenberg in his book How not to be wrong, the power of Mathematical Thinking: Outsiders sometimes have an impression that mathematics consists of applying more and more powerful tools to dig deeper and deeper into the unknown, like tunnelers blasting through the rock with ever more powerful explosives. And that's one way to do it. But Grothendieck, who remade much of pure mathematics in his own image in the 1960's and 70's, had a different view: "The unknown thing to be known appeared to me as some stretch of earth or hard marl, resisting penetration...the sea advances insensibly in silence, nothing seems to happen, nothing moves, the water is so far off you hardly hear it...yet it finally surrounds the resistant substance." The unknown is a stone in the sea, which obstructs our progress. We can try to pack dynamite in the crevices of rock, detonate it, and repeat until the rock breaks apart, as Buffon did with his complicated computations in calculus. Or you can take a more contemplative approach, allowing your level of understanding gradually and gently to rise, until after a time what appeared as an obstacle is overtopped by the calm water, and is gone. Mathematics as currently practiced is a delicate interplay between monastic contemplation and blowing stuff up with dynamite.

[@tychophotiou6962]

You made the complex plane become plain!

[@vari1535]

pLaNe

[@TheSkrillexreptile]

You have the best videos for understanding math, period.

[@bkzlab]

My favorite proof of the Pythagorean Theorem is the one Einstein came up with when he was only 12 or 13. It is one of the simplest as it requires drawing only one more line and it uses self-similarity. It consists of drawing a straight line from the right angle point to the hypotenuse such that the drawn line is perpendicular to it. The Triangle is thus made up of two smaller right angle triangles that are all similar. Now since the area of any triangle can be viewed as some constant A multiplied by the hypotenuse squared, and the area of the biggest triangle is equal to the sum of the areas of the two contained triangles, A x hypotenuse of the biggest triangle squared = A x hypotenuse of the first inner triangle squared + A x hypotenuse of second inner triangle squared (the hypotenuses of the smaller triangles being the smaller sides of the biggest triangle). Simplifying this (cancelling out the constant A) and replacing the hypotenuses of the smaller triangles with the familiar a, b, and the biggest hypotenuse with c, we get the familiar a^2 + b^2 = c^2. You can find it in the intro of the book below. Source: Fractals, Chaos, Power Laws: Minutes from an Infinite Paradise (by Manfred Schroeder )

[@1323545624]

that was nice, thank you

[@iyyappansivaraman5027]

bkzlab Wait,isn t that the one taught in schools?

[@bkzlab]

Iyyappan Sivaraman I was never taught this in school. Perhaps some schools teach it.

[@jayachandranthuwaragesh4797]

Oh please award this guy something like the Field's medal. He deserves it for his each and every video...

[@stickfiftyfive]

Me: wonders about a concept on my own. You: always have a video explaining it eloquently and comprehensively. TY!

[@heal-ing]

한국어 자막 끝까지 해줄 천사없나요ㅠㅠ

[@neelamverma8167]

i wish my maths teacher was so cool as the Korean maths teacher that gave this video as hw to their students

[@anshumanagrawal346]

What?

[@Семён-т9с7т]

Очень красиво, спасибо. Я ожидал в конце неких глобальных выводов о распределении точек на окружности, но не дождался, очень жаль. Наверное эта тема ещё ждёт своего исследователя.

[@soso-rl5hi]

one time i watched a video class because i was desperate and didn't know basic math and now those videos show up on my recommended and i love watching them to see what i may or may not understand and just bc i love hearing smart ppl talk

[@UpGradeTutoringSolutions]

If you look closely at around 7:30 ish, an optical illusion is generated. Black dots can be seen within the lattice points, but as soon as you try to focus on one of the individual lattice points, the black dot will vanish.

[@jeanmarabou9774]

When I watch these kinds of videos I wonder and imagine how much Pythagore or any antiquity mathematician would have been hyped watching this

[@샤랑둥이-j6z]

오...씨1발 신이시여..

[@Coffeebean1024]

아니 페이지 번역으로 댓글 읽고 있는데 국수잔치 있어서 개 놀랬잖앜ㅋㅋㅋ

[@메생국왕]

엘프어인듯

[@Ttonyee]

ㅋㅋㅋㅋㅋㅋㅋㅋㅋ

[@lemo_-]

뭐야시발 왜 한국어써요

[@Echozkii]

This is the part when those kids in class say, "When are we going to use this in our life?"

[@Idisagreethisisnotanon]

EchoZK - Games - Music - Illustration I mean when are we gonna use this in life?

[@immortaltitan3839]

But can you answer that question sir?

[@aathish04]

@@immortaltitan3839 The same place where you're going to use your extensive knowledge of . This type of maths is beautiful, but not useful. In that way, it's more like art than science!

[@southernkatrina8161]

When you want to know how tall something is without going up a ladder. Which happens enough to make it useful. Roof. Ceiling. Tree you want to cut down that you hope will not crush your rosebush. Ladder height long enough to reach roof. Etc.

[@kuchenteig4240]

@@aathish04 yes, science can be art too!!

[@jasnoor8-d-155]

I am preparing for iit jee and i was really confused about pythagorean triplets i couldnt find any better video THANK YOU MAN!!!

[@jinseokkim2586]

probably the best video from your channel. great

[@cereal_chick2515]

I never knew the theory of Diophantine equations could be so beautiful. You're tempting me to the dark side 😭

[@doctoridk9442]

Now I feel that maths is the most beautiful thing I have ever seen, simplistic and elegant

[@gigachad2419]

Try Physics and Chemistry too They are as beautiful as Mathematics

[@GalluZ]

Indonesia doesn't make English a 2nd language, but - with words that I made myself - I understand your explanations. It's simple and complex if you ponder long enough. So much detail within your words. This is my teacher now. I mean *our* teacher (as long you understand English)

[@elijahaustin7454]

3B1B's favorite proof is THE FIRST geometric proof of the Pythagorean theorem that I understand... Ty :D

[@alain1312]

I do not know that this equation had so many solutions. Thanks a lot for this video.

[@shmillsyshmillsy6624]

I literally just asked my calc 1 professor why we even learned imaginary numbers yesterday and then stumbled upon this video today

[@realbignoob1886]

Shmillsy Shmillsy lmao

[@pharynx007]

there's a great series all about imaginary numbers, called "imaginary numbers are real" its like an hour long series about them. super interesting. edit: on youtube that is

[@Bluuuueee]

This is en extraordinary video. I am amazed by the elegance and the beauty of this method and the outcome of it. Just a small thing, is it okay to use the word "magic" in the context of mathematics? Does not all mathematics have a logic behind it? :-) Just curious! Keep the good work up!

[@laughhello669]

Sometimes... Many things in maths happen so magically that we can term it as magic... Because in maths everything has got a pattern we don't know how... But it is existing from forever .. Everything existed before and in a universal pattern... Everything is related... What we see and study in maths... Is similar to many aspects in physics and chemistry etc... if we observe it, the way it was made... And observing everything the way it is... Is something really difficult for human mind.... So you know...It's all happening.. We don't see... But it was before, now also and will be also... When we observe, we see everything in patterns... And all patterns related to each other. Giving us a simple idea that universe is perfectly symmetrical.

[@FacultyofKhan]

I am extremely disappointed in you, 3b1b. You have failed to adhere to your upload schedule, in which you say you only upload every 3 weeks +/- 1 week. You have uploaded 1 week too early! SAD! That said, this is going to be a great video as usual. I'm definitely using all your videos to learn and gain ideas for my own work!

[@B3Band]

Bad (or sick) guy!

[@a006delta]

"SAD!" are you fucking Trump's twitter?

[@ZardoDhieldor]

Now, I have to disagree, 3B1B is a tremendous guy! Absolutely wonderful! A great friend of mine!

[@joeg579]

lol

[@FacultyofKhan]

Skip, hold on, hold on, lemme tell you something: 3blue1brown is a dear dear friend of mine. I know his people, I know his family, and I know him personally. He will NEVER EVER sign with the Memphis Grizzlies; what you just said right now isn't just APPALLING, it's BLASPHEMOUS. He wants the money; he wants the rings, and you know as well as I do, Skip, that this free agency, 3blue1brown will sign with the Golden State Warriors!

[@winterglue274]

The sound and animation are soothing really chill math

[@geodave227]

This is a great derivation of the general method to find all the triples. I've never seen an actual EXPLANATION of the method.