# Times Tables, Mandelbrot and the Heart of Mathematics

ok so to start off I’ve got 4 images for you. Quick question what do all of
them have in common. Well, I would be very surprised if you guess this one here. (Giuseppe) They are full of lines. (M) They are full of lines, they are in a circle. But actually they are pictures of times
tables. I better explain this. So to get these pictures what
you do is you start with a circle and then you pick a random number. And we just choose something nice to start with, a 10. Then we put 10 points on the on
the perimeter here equally spaced and then we label them
with 1,2,3,4,5,6,7. Actually, let’s start with 0–0123456789 10 10 we also want, so we kind of put it
right there again. So that’s also 10, that’s also 11 12 13 14 15 and so on. And then
again, and so on. So this guy here stands for 1, 11, 21 and so on. And now we’re going to do the
two times table and we’ll start with 0. So 2 times 0 is 0, same thing, so we don’t do anything. OK, two times 1 is 2. So we connect the 1 to the 2. Then 2 times 2 is 4, connect the 2 to the 4 and we keep on going, pretty obvious. Now 2 times 5 is 10 and
remember 10 is also over there so we connect that guy up. And then 2 times 6 is 12 which is also the 2 and we just keep on going like this okay and then at 9 you pretty much
gone all the way around now you could go on so for example could now do 2
times 10 and 2 times 11 and 2 times 12 and draw in those connections but actually the connections
are going to be exactly the ones that we’ve drawn before. Just to illustrate, let’s just go up to 2 times 12 is 24 which corresponds to
the 4 and that connection is already there. 2 times 13 is 26, and we’ve already got that. Of course we made a choice at the beginning that 10 If you change that 10 to anything
else well the picture changes but pretty much
everything I said stays true. So for example if you switch from 10 to
11 we get this guy here here. And then 12 13 14 15 and let’s just see what happens. (Giuseppe) Is there a reason why the diagrams have a horizontal symmetry axis. (M) yep yep yep yep yep there’s a reason and let us give this as homework. Guys figure it out in the comments, tell us why there is a horizontal symmetry axis.
Of course, what’s much more interesting is that curve that
somehow magically materializes when you up the number that we chose at the beginning and actually just highlight it a bit. This strange curve got a name and pops
up all over mathematics, it’s called the cardioid like in cardiology and means heart. So it’s like a mathematical heart curve. It comes up in all kinds of places. I’ll just show you a few. Ok so for example you can
have it as a rolling curve rule one circle around another circle and just
see what happens to one of the points on the boundary of the rolling circle and what it does is it traces the cardioid. Now where else can you see it? Well sometimes you can see it in
your coffee cup. If you’ve got a conical coffee cup like this and the Sun is in the
directions of one of those green lines in the coffee cup then we can also see it. Where else? Right
there in the Mandelbrot set so the biggest bulb in the Mandelbrot set is a cardioid and the second one is a perfect circle. Now this would be a good one to figure out why why is this guy
a cardioid. Just chase this down somewhere. Now just for those people who know something about the stuff, that’s the equation that we use to make up the Mandelbrot set
and there is a 2 in there. That’s important We just had the two times table. Let’s
keep going now (Giuseppe) One more thing about the cardioid shape. As a video producer I know that there is a microphone called cardioid microphoes and that is because they pick up the sound in that area, from that direction. (M) Okay maybe we do another video on this. Now instead of doing the two times table we can do the the three times table. What we get is this pattern here for initial our
choice 10 and then I just up up the numbers and what do we get? Another curve, another very famous
curve. This is called the nephroid which means kidney. It’s also a rolling curve, here the circle that is rolling is half the size of the other one. It’s also in a generalized Mandelbrot set. Remember before we head an exponent of 2. Now we’re
talking about the three times table we change the exponent to 3 and you actually
get the main bulb here being the nephroid. We also get it in the coffee cup. This time we need a straight straight coffee cup and the light
rays come in from one side. So they come in straight like this and
then they of bounce around inside the cup and and make up this curve.
Actually this way of making up a curve is called a catacaustic in mathematics. What else have we got. Four times you can see a pattern now. Four times gets you three petals. Before we had three times and so two petals and all these other things that we’ve highlighted they work too. Here the the exponent has gone up to to 4 in the generalized Mandelbrot set. Here we’ve got the rolling curve happening again. And then just for good measure
just one more guy here. That’s the 5. It gets four petals and we’ve got the Mandelbrot set here and we’ve got the rolling curve. All very neat. (Giuseppe) So the number of petals is n-1? Yep and it keeps on going like this. Ok so let’s start again with 2 times table. Now one one really nice thing to try is to actually
make increments not one … to 3 to 4 to 5 but actually do smaller increments actually do the transition here
continuously. I’ll just show you what it looks like when I do the multiplication times 2.1. What you get
would you get 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 and 3 and you can see how this cardioid turns into the nephroid. Now I just let it go. The numbers are going up and you can see the petals going more and more and more. You think well that’s probably what
it’s going to be. You can also look at this in the Mandelbrot set and you
can actually see exactly this sort of pattern happening in the middle. As we push the exponent to infinity the
whole thing kind of turns into one big circle. Okay and now you think that’s
the end of it but no, no, no. Let’s keep going here. Now the petals are pretty much going away but if you just look at what’s happening here
you see there’s a lot more structure somehow being hinted at. I mean I’m
moving very fast at the moment moving very fast but if you actually went
through this frame-by-frame you would see a lot of really really nice structure
happening and I’ve highlighted a bit here. Just a few of the frames that you get
you know some really amazing stuff happening here so if you stop at 33 you get this one. If you stop at 34 and there are a couple of other highlights here. There are a lot more but that is how
many I could fit here. Ok maybe let’s have a close look at some of them. So here we’ve got four. The number that all these correspond to is 200. What we’re really doing he has a
special name in mathematics So what we’re doing here is
the times table modulo 200. So it’s got a special name. It’s actually incredibly
important in all sorts of applications to do this sort of modular arithmetic.
But paper anyway for our purposes you know you understand how it’s built up
and if you know a little bit more you know a little bit more. So for the 2 times table we get the cardioid. For the 34 times table modulo 200 we get this guy here and then
some other interesting things happen. So, for example, if you multiply by 51 we get this guy here and if you multiply by 99 you
get that guy here. And obviously if you just look at the two numbers here below so 51 is pretty close to 1/4 of 200 so must have something to do is that. 99
is pretty close to one-half of 200, must have something to do with that. Now I
really want to explain something I really want to explain where this one
comes from. And well I mean the first time I saw it I was pretty surprised like
everybody else who sees it but then I remembered something I had seen the cardioid before in you know many many different guises and in one particular one that I was familiar
with I could see where the connection is. I just want to tell you about that one
and it’s got to do with these light rays bouncing around. It’s a little bit different
from what we had before. So basically we’ve got a circle here and then we’ve got a light
source right over on that side. And that circle reflects the light right, so we switch on
the light over there and then well what happens? Well light rays emanate in all kinds of directions and get reflected off the circle bounce around and you can see
this pattern emerging, the cardioid. So I knew this one I had actually calculated
this curve from this description at some point in university. And starting with this you can actually see very easily why the cardioid comes up in the two times table and I just want to show you.Let’s just highlight like one of those rays coming out here. It hits the wall here
and then it gets reflected at the same angle as it comes in, so this angle that you see here is the same as it comes in. So what does that tell us now? Well, if we if we put this line in the middle that means that this side really flips over
to that side, which means that this segment in particular is exactly as long
as that one here. If I travel from this light bulb to this point and then from
this point to that point it’s exactly the same distance, that’s going to be important. So let’s make this 0 let’s call this N. What’s 2N then? To get 2N we have to measure this distance here and then we have to measure it again and where do we get?
Right up there ! And so it’s pretty clear that when you do the 2 times thing you get that reflected ray, you know, in the picture. Just to finish off I’ll show you a little bit of a movie of all the stuff evolving a little bit slower than what

## 100 thoughts to “Times Tables, Mandelbrot and the Heart of Mathematics”

1. Lv.1하급 루랑단원 says:

변태;

2. Nodalthree says:

Would like to be able to purchase a high resolution of this for a wall display (monitor with memory) as a dynamic art display that cycles repeatedly.

3. Meth Amphetamine says:

I'm just surprised when that plane becomes part of mandelbort set…

4. billytheweasel says:

How did I fall into this rabbit hole?
This stuff is an absolute trip.

5. Jakob says:

Now I know how the star wars "rebel" logo was created.

6. Keith Boothroyd says:

I'm very surprised at the comments.?

7. Human Dignity says:

So why is it symmetrical?

8. Human Dignity says:

My guess is:
He uses a projector, shows it to an imaginary auditorium with one person who is asking him questions.

Then he gets rid of the projector image and overlays an accurate digital image.

My question is how does he get rid of the original projector image?
What would it take me to do something like this using Matlab and Davinci Resolve?
I want a video on how he does it.

9. RangerCaptain11A says:

you can see the cardioid when a plumber bends over to work.

10. pinpoint45 says:

if i had known about this kind of math when i was in school i would have done a lot better, for some reason seeing the geometry makes better sense to me than trying to interpret math as a language. it just clicks.

11. Sandra Jovanovic says:

It's looked like inside of the eye to me …

12. hbgriss says:

Spirograph in the 70’s. Wasn’t that’s what the drawing kit w spiral rings etc was called? 🤘🏼

13. James Thornton says:

Cycloids are everywhere.

14. Necromantix says:

what happens when you use a sphere instead of a circle?

15. Carl Angel says:

16. Herbstbaum says:

great thank you

17. Thomas Eschment says:

does anyone know how I can reach the speaker?

18. Young Chul Lee says:

Naow days sf movie just like a really ( basic on mathematics )

19. Venkatesh Babu Ponnuchamy says:

Mandelbrot is a matter detection functions. Mostly used in how structures are formed. Mathematics of.relative development. Even in developmental biology.

20. K. Nickel says:

the fibonacci numbers appear in the center if you slow the last sequence to half the speed amazing. Really a proof that math is somehow gods favorite tool.

21. alvi78 says:

A stupid question….what is the utility of this, what is the application in life? I am sure , there is, its just that I would like to know what is this knowledge applied in.

22. AKASH MANDAL says:

I am very happy to see all this stuff you to visualize the meaning of number..

Which application you used to develop this animation or simulation…

23. Kalid Abebe says:

is that 86 or 88 the one which look like flower?

24. nelson 128 says:

https://github.com/honeydatax/marina-os very good video about can you help me to make a video about my new operation system builder

25. Hastin Nuraini says:

hello

26. Pedro Soares says:

Please make a t-shirt or a coffe mug with these patterns!!!

27. Drolo Drollenstein says:

Aeh … shouldnt the rays of the sun be parallell ??

28. Bruno Amos says:

I am trying to understand the movements of a market chart (candles) with Mandelbrot or fibonacci, but I still can't make it, some of you have already done it to help me please, thank you !!

29. DarkSlidGamer says:

wait this was actually that easy???

what program did you use to visualize?

31. Bmchaney Bmchaney says:

YES! #jungEinstein reiteration, perhaps? K, thanks Doctor.

32. Bmchaney Bmchaney says:

fyi, heads up on the penrose numbers for mentoring me: cant give you the muskrat's function but I can give you my pow(x,y) = x^y function, where x and y can be lots of great things like dimensionalNumbers, topologicalNumbers, x is usually time or position. Thank you , Master Jedi. bows . ps, I call it pow for a reason…ever play Mario and watched him scale lol?!

33. TheWholeShabang says:

But why?

34. Jake Stewart says:

I know this doesn't have anything to do with the video, but I would like to share these questions and this message with as many people as possible.

1. What do you think happens to someone after they die?

2. Do you think there is an afterlife?

3. If heaven exists, how do you get there?

4. Would you be good enough to get into heaven?

Here are a few questions to see if you are a good person:

1. How many lies have you told in your whole life?

2. Have you ever stolen?

3. Have you ever used God's name in vain?

4. Jesus said that "whoever looks at a woman to lust for her has already committed adultery with her in his heart" (Matthew 5:28). Have you ever looked with lust?

5. If you have broken any of these commandments, would you be innocent or guilty on Judgment Day?

6. Would you go to Heaven or Hell?

The Bible says that "all liars shall have their part in the lake which burns with fire and brimstone" (Revelation 21:8) and "Those who indulge in sexual sin, or who worship idols, or commit adultery, or are male prostitutes, or practice homosexuality, or are thieves, or greedy people, or drunkards, or are abusive, or cheat people — none of these will inherit the Kingdom of God" (1 Corinthians 6:9-10). So, if you are guilty of any of the ten commandments, then you are in trouble when Judgment Day comes! Do you know what God did for guilty sinners so that we wouldn't have to go to Hell?

2,000 years ago, God became a human being, Jesus of Nazareth, who suffered and died on the cross for our sins and rose from the dead on the third day, defeating death. The punishment that we deserve for breaking God's law, Jesus took in our place. He paid the fine that we could never pay so that God can legally set us free by forgiving our sins. He is just, by punishing evil through Jesus’ death on the cross, while being rich in mercy towards us.

What you have to do is repent, or turn from your sin, and trust alone in Jesus. Don't trust your own goodness, because, as Jesus said, “No one is good — except God alone” (Mark 10:18). Trust alone in the savior. The moment you do that, God will forgive every sin you have ever committed and grant you eternal life, and He will give you a new heart with new desires, so that you will love to do what is right. You must repent and trust in Jesus.

When are you going to do that?

Here is a conversation between a Christian and an atheist on this subject: https://www.youtube.com/watch?v=QRZlYg08Za4

35. Tom McDonough says:

Fascinating. The very foundations of creation are based upon math, geometry, light frequency and the frequency of vibration.

36. Enrique Piatti says:

It feels like there is a concept really important about how the universe works behind this but I feel too dumb to see it

37. Luke & Dad Productions says:

Hi. would you be interested in a 3d version of the pattern at the end?

38. Luke & Dad Productions says:

Also is there a spherical representation of this rather than a circle?

39. mark hughes says:

Be interesting to track the path of the dynamic centre as it moves towards 200: sometimes the movement appears continuous and sometimes it appears to jump in a discrete way.

Who do I contact to teach y'all motherfuckers something?

41. Luke & Dad Productions says:

heres my 3d disc version https://youtu.be/PRGABcQgeuY

42. Icterine Tech says:

its a butt

43. Kyle Broussard says:

What if we all learned and conceptualized math like this instead of in number form? Wild.

44. EZ Films says:

45. Jacques de Wet says:

Wow !!!

46. Tristan Hurley says:

What happens if we use fib ratios?

47. theBenski27 says:

boring symetric stuff….

48. L Stern says:

Poetic!!

49. Hangyeol Lim says:

Oh so theres mathematical reason for the flowers appearances !

50. luigi ionascu says:

_sign transsinphinite number theory_archaicxn

51. A Peppermint Candy says:

It's most fascinating. I've seen some truly beautiful Mandelbrots zooms here https://www.youtube.com/watch?v=gNbUwiRRxDs

52. Tim Mackey says:

🤯🤯🤯, anyone else notice the rebel insignia from star wars in the 2x table

53. Kenny Monty says:

I know little about mathematics. But, I was wondering if you could explain the practical origins of the process we call Square root.
It is my understanding that the Babylonians were using this, granted, within a hexagesimal system. But, they're math seems to me to have been very practical in nature.
So, what was it for? What does it do?
Thanks for your video, BTW. I really enjoyed watching.

54. Aryan Mn says:

which tool you use for making time tables?

55. Shaikh Mullah-ud-Din says:

3:05 bird's view of one peach of an a\$\$!
asstroid would be a far more catchy name!

You call it Mandelbrot , i call it Rebel Alliance.

57. kwzieleniewski says:

Does this connect to the discreet logarithm problem and cryptology?

58. Luzma Ibague says:

Me gustaría disfrutar tu canal en español. Por favor subtitula. Gracias.

59. julie Gale says:

0 does not exist so I would like to see this from 1 to 9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9. etc: For the cell to duplicate it must (as it does,) almost complete its circle to the minutest degree then it splits off to create itself again and again this is the human cell and all cell reproduction. The creation of all vibration, stimulating sound being, music and colour…These vibrational patterns are the music that all of creation is tuned to but because mankind is so out of 'tune' so out of vibrational balance the sound is corrupted, effecting the music and colour which is the deep spiritual harmony we have destroyed by our not obeying our Creator…We are surrounded by broken Universal Spiritual Laws that have been taken over by corrupted man made codes that have isolated the human being from natural vibrational Universal Laws that we were created by. The vibrational level of Gold the purest metal on Earth being a pure energy that emits warm and likened to the human heart because the human heart represents Love and the components of love all have vibrational values that when applied bring peace and harmony to humans. These vibrational values are given in the Holy Scriptures. These are contrasted to bad vibrational values of the corrupted values that peoples insist on applying instead of applying the laws of Love to create high spiritual vibration to create peace among humans. That is why the Scriptures instruct us that Almighty God our Creator IS LOVE (1 John 4 v 8) and we are instructed to have "Love for one another for it is the perfect bond of union" ( Colossians 3 v 14) And the components each which when applied make up the entire pure vibrational of Love are given at 1 Corinthians 13 v 4 "Love is long suffering and kind, Love is not jealous, it does not brag,does not get puffed up, (v5)does not behave indecently,does not look for its own interests,does not become provoked. It does not keep account of the injury.(v6)It does not rejoice over unrighteousness. but rejoices with the truth. (v7) it bears all things ,believes all things (to do with the truth) it hopes all things, and endures all things (v* Love never fails…" This is the beautiful Law that humans need to apply, for it is the perfect law, the perfect vibration, the perfect sound……..And there are millions worldwide who are leaving this diseased world behind and changing their lives to live by these beautiful values for they realise it is not just mathmatics but it is LIFE.

60. Jay Em El Jay says:

I've discovered I am multiorgasmic… And by that I mean multiple eyeorgasms…
This was beautiful… Subscribed with bells and all
Cheers from Argentina

61. Денис Дерюшев says:

Какого хуя не по русски , когда заголовок на русском ?

62. Katie Giles says:

Lol! He completely blew off his comment about the microphone! Haha!

63. Meri Ratzel says:

just playing with this, but surprised when you point out two circles rolling in on one another….that shape is a feature of fishing weirs, and the shape influences how fish are caught into the net:) two circles rolling one into the other? also love this – I will have to go and get my old spirograph out, now I know why those plastic circles had #s on them:) thanks

64. Владимир Петров says:

Так чтоб помягче Привет

65. Kevin-April Y says:

I first saw this pattern on Micmath's channel (in French). He made a tool that makes it really easy for anyone to play with this: http://micmaths.com/applis/tablesmulti.html (use the arrow keys. I recommend you change line thickness (epaisseur de ligne) to 1, dot size (taille des points) to 0, step size (pas, x) and (pas, y) to 0.1 or 0.01 or 0.00001 (the smaller you make it, the slower the animation goes as you hold down an arrow key). You're welcome! Oh, and here is the original video I saw, published 5 months before this one: https://www.youtube.com/watch?v=-X49VQgi86E

66. Samiran Kale says:

Can we use this to study cell cycle mathematically??????????????

67. Profe Pepelucho says:

Como la simpleza de las tablas se relaciona con la sutileza y la hermosura de los patrones formados que bien se encuentran en el mundo que nos rodea, un privilegio poder verlo. Gracias por su trabajo y por compartir conocimiento!!

68. Aaron A says:

half of curving the nephroid is a mushroom from Super Mario 3D World 🙂

Интересно. Я думаю что в таких геометрических фигурах кодируются некие свойства чисел – типа увидел фигуру, надо искать закономерность. Интересно было бы посмотреть такие графики простых чисел, нет ли чего-то похожего в диаграммах? И если перемножать не все числа, а только нечетные или только простые?

70. Aritz Erkiaga says:

Lemme guess…
So we choose m as the number of points, and x is one random point in the first half.
x < m/2

2x mod m = 2x
2(m-x) mod m = (2m – 2x) mod m = -2x mod m = m – (2x mod m) = m – 2x

So for every point x, that connects to point 2x, the reflection of x connects to the reflection of 2x.
(I know this is probably abuse of notation btw)

71. COIN COLLECTING FUN says:

Thumbs way up!! Really enjoyed seeing the numbers behind the art!!

72. Nick C says:

We need more mathematicians to use DMT since they already know the names and purposes for a lot of the specific geometric forms and interactions DMT has an affinity for showing visitors.

I'm dying to understand why DMT–on multiple occasions–apparently showed me mathematical geometry with specific and known meanings that I just had absolutely no clue about until I stumbled upon it in a YouTube video a year and some change later… I was shown the process that begins at 12:17 on a couple of occasions but never in a million years would I have understood on my own that it was a visualization-in-motion of graduating through the times tables using linear geometry.
How am I ever supposed to believe that my own brain conjured up this kind of intelligent geometry when it's something I literally don't believe I'm intelligent enough to realize on my own in what you'd call "sober" reality, for lack of a better term (not that DMT is any kind of "high.")

73. Calvin K says:

What would it look like if you use the exponent of 77?

74. Calvin K says:

How can you use this to find the resonant frequencies of different type of matter

75. Nick Zimmermann says:

Wie geil 😂
MANDELBROT HAHAHAHAHAHA

76. ModArt Collective says:

http://barangulesen.com/love.html

77. Nathan Slater says:

Circle about x and y axis centred on z axis, being a circle of 5cms, viewed along Z axis,

So x axis = 45 degrees y axis = 90 degrees and z axis = 0 degrees.

Then circle = (Pi x D) x Tan of x axis x Cos of y axis x Sin of z axis

x axis spins (rotate about self) as does y axis but z axis is hemisphere of spin 0 degrees straight out to 90 degrees when aligned with x or y axis.

works with this

TORUS the Triangular circle of 4D

Torus volume

(Phi x Pi x (4/3 x Pi x r^3))/tan Y

(((Phi Pi x (Pi x D))/ tan Y) /tan X)

(Phi x Pi)/ Tan X = spins per revolution

These formulas are written by me.

78. Anthoni Morrow says:

12:18 — Joe Rogan has entered the chat.

79. Rebel with a Cause says:

Reminds me of Cymatics, Geometry & the dance of the planets, all is number in this dimension 🙏

80. Sarah Tonen says:

glancing quickly at the thumbnail i thought he was a barrista and that was a latte

81. Anil Kumar Sharma says:

if you want to find out energy forever then works with uphill circle roller series which are used gravity only

82. Sean ConDev says:

Great presentation

83. George Abraham says:

Combine the nephtoid with the heart and you have some decision making on what side is the head and what side is the tail… Take a break and contemplate "common designer" regarding creation. The clouds get pretty intense, it's haze hides a lot of symmetrical stuff obtuse in diamantine angles.. The simplest to lift from the sky is obtuse ribbose or pelvic complex chains… All you need like that cup of coffee is one light source.. Ths Sun from sunrise to sunset.. will divide the shadow of a single stick into a left side and a right side… so you have brows(Two).. and share something in common with most living creatures.. and then you look at the table of the sphinx and go crazy… Then all tablet headings have brows(Two),.. and argument? a contract?, Contrast?, then there's a rose in gravity but that one spins and spirals..

84. Theo Wild says:

Watching all the internal patterns in the last animation was like watching what the inside of my eyelids looks like. Wild

85. OlympusHeavyCavalry says:

This is very fascinating and I see where this can be utilised with in science with meteorology, optics and astronomy etc related to reflection and refraction etc and other disciplines too. Thankyou for the video, I enjoyed it and the explanation immensely, Cheers 🙂

86. Jan Havel says:

What happens if you use irational numbers like Square 2 or Golden Ratio?

87. The Realm Traveller says:

If u made these with a pen and paper you could sell these for a lot of money

88. Digalog says:

https://www.desmos.com/calculator/kmvemt2hlw

89. Laba Limbu says:

love it

90. Swiggy Swagg says:

I know this is an old video but around 12:15 when you have 0 going to N and to 2N, would that then mean that 3N = 0? If so how is that explained? I am guessing it might end up being just 1 number off from the 0 on the table, but it looks like it would make an isosceles triangle

91. patt fmp says:

Normal

92. Денис Царь says:

Пацаны, смотреть надо под накуркой.

93. Rollie Blue says:

So wat makes four leaf clovers so rare?!

94. Brian Jed says:

The motion in space from zero to infinity.

I am actually doing something like this right now although I haven't made a a diagram or geometric illustration out of it. But there is indeed a pattern.

95. Andrew Prahst says:

12:23 That moment where that front line touches the bottom.. Could that be when the factor is equal to Phi?

96. iDeAs Born says:

All this Knowledge and I'm over here like…where do i get his tshirt???

It gets amazing from 3:02

98. Isabella Mori says:

That's so beautiful and complicated

99. S E says:

V=B
3/?
3|/3?

100. Alan Deacon says:

Is this related to interference patterns and/or cymatics?