Recursive PowerPoint Presentations [Gone Fractal!]
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- Опубликовано: 14 июн 2024
- Thanks to Steve Mould for filming with me. Check out his "How viruses self assemble" video.
• 12 magnets show how vi...
We have since made the t-shirt I'm wearing available for purchase:
fotsn.teemill.com/collection/...
We have some free teaching resources for anyone who wants to make a large collaborative fractal! As well as complicated 3D ones we've made a new Think Maths "low-prep giant Sierpinski triangle" guide.
think-maths.co.uk/standupmaths...
The second channel video takes a closer look at the pptx file and the details of what version of PowerPoint you need to make this work.
• How a PowerPoint fract...
Tom Wildenhain has since made far more successful PowerPoint fractals than Steve and I were anywhere near.
• An easier way to make ...
If you want to see the live An Evening of Unnecessary Detail show: it's once a month in London.
festivalofthespokennerd.com/s...
Some technical details about the Cantor Set.
mathworld.wolfram.com/CantorSe...
CORRECTIONS
- Nothing yet. Let me know if you spot anything!
Thanks to my Patreon supports who do support these videos and make them possible. Here is a random subset:
Simon Hutchings
Philippe von Bergen
Richard Fourie
Alan Flett
James Tanner
Support my channel and I can make more maths videos:
/ standupmaths
Filming and editing by Trunkman Productions: trunkman.co.uk
Sound production by Peter Doggart
Music by Howard Carter
Design by Simon Wright
MATT PARKER: Stand-up Mathematician
Website: standupmaths.com/
Maths book: wwwh.umble-pi.com
Nerdy maths toys: mathsgear.co.uk/ 
Развлечения
To understand recursion, you must first understand recursion.
"Tail recursion, noun: If you're not sick of it already, see tail recursion." - the Jargon File
You also need to login to logout. Please login to logout.
Years & years ago in one of Borland's manuals in the index there was: Recursion: see Recursive. and Recursive: See Recursion. :)
@@retroretiree2086
If you google "Recursion", Google will ask you "Did you mean: Recursion" xD
This does not work for "Recursive".
@@retroretiree2086 The Devil's Data Processing Dictionary has these entries:
endless loop: See loop, endless.
loop, endless: See endless loop.
I mean, who *doesn't* invite their friends over to make Powerpoint presentations?
“Oliver with orange default profile” gang
@MichaelKingsfordGray hey my grandfather's name was Oliver. Come to think of it, I never met anyone else named Oliver I'm my whole life... ????
I don't, we make Excel Spreadsheets.
It's just how we party. Making endless presentations. It gets really wild. Best parties I've been to.
Sometimes I decline because I prefer spreadsheet nights.
*somewhere at microsoft*
"should we disable self-referential links?"
"...why would anyone make a self-referential link?"
Such an IT joke. Loved it.
The funny thing is that Excel recognizes self-referential operations as impossible to resolve, but PowerPoint doesn't for some reason.
@@Draco137YT because excel will crash and PowerPoint won’t
This is the type of video you get when a content creator understands his demographic /perfectly/
Yep. Us over technical nerd who like doing things cheaply and in as overblown a manner as possible.
@MichaelKingsfordGray weeelll you're not wrong
+1 to this comment
No Parker's Square here
YES!!!
My favorite programming language is powerpoint
It is Turing complete as far as I know, so...
It is so it is a language like C
Mine is Game of Life. (Portal and Little Big Planet are also quite good)
Yes, it is. I have done some research on the subject: ruclips.net/video/sdkxWqsk17c/видео.html
@@tomwildenhain Oh wow it's actually you who made it. This is one of my favourite videos on the internet. I love a chance to share it. How it only has 14k views is mind blowing to me. Ah that's a reupload I think. This is ht esame video with more views. ruclips.net/video/uNjxe8ShM-8/видео.html Like you forgot the next day was april fools so reuploaded it on April 1st.
I lost it at "HTML is my favorite programming language".
It's not really, it's CSS... for which we have another layer of joke: CSS is Turing complete!
@@0LoneTech BTW now one can't tell if a powerpoint presentation ever terminates -- that's one step closer to PowerPoint without macros being a turing-complete language...
This was precisely when the video got a LIKE from me!
parker HTML
@@anatolykruglov7991 what it stands for has nothing to do with if you can make a program in it
The question is, did you send the inevitable crash error reports to Microsoft?
No one ever reads them anyway 😂
I don't think they would consider "PC runs out of memory and crashes if you make an infinite recursive powerpoint" a particularly high-priority bug :P
I believe that falls under 'inevitable consequences of the limitations of computing' or some such... XD
@@6infinity8 We absolutely do read them... Please send your crash reports if you actually want stuff fixed!
@@BTheBlindRef Haha I was kidding of course
my favourite programming language is coloured beads in match boxes.
Vsauce2?
@@theexcelsior_0024 no, menace
Grafcet then
My favorite programming language is Piet
Shreksaspawn?
"It's not really, it's CSS" Such a throwaway, yet incendiary joke, I love it! Also: whoever thought you could do a multicam setup on someone working in PowerPoint?!
They also had several Phantom TMX 7510 high speed cameras to capture the exact moment when Microsoft decides to call it a day
"Keep going, don't stop" - Matt Parker watching a PowerPoint presentation 😁
next up: longest Mandelbrot set zoom using powerpoint
HPD1171
That's easy, just pre-render a video clip and embed it.
Yes it's cheating, but it's still in PowerPoint
@@burgersnchips _In_ PowerPoint, yes, but not _using_ PowerPoint.
First I find out that PowerPoint is Turing Complete, now this.
@@prim16 ppt is turing complete?? How??
@@sankang9425 r/woooosh
11:25 "It's just applied things basically"
Spoken like a mathematician. Way to stay on brand.
My favourite markup language is C++
@thewestwardsky I don't get it, but I do know at least some programming related things. In C++ you have to declare the type of your variables and that you can change the format of your outputs in a lot of different ways. I assume that is what is being referred to in some way - but I don't get why it is funny.
@ Nah, I'm pretty sure it's that HTML was jokingly referred to as Steve's favourite programming language when HTML isn't a programming language, it's a markup language. He's reversing that idea and calling C++, which is a programming language, a markup language.
my favorite programming language is minecraft's redstone
Mine is PHP. Which is less of a joke than it should be.
Mikkel Højbak the joke is that none of this is Steve programming, he could just use A, B, and C and a Powerpoint program, with its functionality. This is very cool to see.
There's something about watching two grown nerds playing with Powerpoint to make fractals while smirking with such genuine enthusiasm and glee that I can really appreciate.
And to think some people need drugs to feel such elation.
Now make one that automatically plays Conway's "Game of Life" as you keep saving.
That requires like logic tho
i dont know if powerpoint is turing-complete
@@darksentinel082 It is. People have made Turing machines in Power Point.
Eh it's an XPS. They're bulletproof.
How would you link a slide conditionally
I can see some corporate boardroom appeal for never ending PowerPoint presentations. Also the Sierpinski triangle presentation was way more interesting and informative than the vast majority of corporate presentations I have had to endure watching.
i'm board
4:50
"STEVE: That's how you selfclose [in HTML]
MATT: It's his favourite programming language.
STEVE: Ok n- It's not. It's actually CSS."
Yes, that is what happened in this video. Good job transcribing that.
@@_rlb Thank you for your appreciation!
But is it Turing Complete? stackoverflow.com/questions/2497146/is-css-turing-complete
My eye's twitching
perpetualReality UwU
I suspect it operates this way to avoid an issue similar to the Billion Laughs Attack. The fact that this doesn't trigger an immediate infinitely recursive crash in Powerpoint (ultimately a memory overflow of some kind but before a severe slowdown as it attempts to create an XML file of significant size -- as suggested at 12:05) suggests Microsoft requires the save on purpose. When you save it says: "OK, I will do one recursion level because that seems like what you want, but just one."
When the Billion Laughs Attack was first identified I remember it being quite the headache for us to handle at my previous company (we sold one of the most popular XML editors, and it had its own parser, originally based on an SGML editor from the 1980s, which then became an XML parser 1997 when we were working on the first XML recommendation). I identified that Billion Laughs would actually affect our XML parser, which was predictable because our parser was very compliant to the XML recommendation and supported entities in both the XML and any associated DTD. Convincing management that it was something we did in fact need to deal with, and "waste" development time on, was quite a pain. Creating all the various test cases needed to break our software was quite fun though.
Press F to respect the poor computer who is abused into crashing.
F
F F FF FFF FFFFF FFFFFFFF FFFFFFFFFFFFF
Ф
Matthew Stuckenbruck you had one job.
@@matthewstuckenbruck5834 You won. You won RUclips.
I think the part "HTML is my favorite programming language", is just a trick to see how many programmers the channel has. And well, quite a lot.
HTML is technically a programming language.
@@hexagonist23 hypertext markup LANGUAGE
@@lyger_playz Still you're programming the comluter do something, so its a programming language
@@hexagonist23 It's not programming, really.. it's more of a container designing.. ;) sorry to all the "HTML Programmers" out there.. :D
@@averysj69 No. HTML is a programming language, in the same way that Python, Javascript, are considered programming languages. Even a text editor is a programming language. You're programming a program to do something, you're not programming the computer.
6:36 - He should have made it 30x31 so instead of a perfect square, it'd be a Parker Square.
That would still be way too accurate for a Parker Square.
@@Simon-nx1sc what about 42x69
Is that too far off?
I love how Steve cheekily calls HTML and CSS programming languages. Such a naughty boy.
I'm just waiting for the inevitable tide of people that missed the joke and comment with "well actually..."
Parker Programming langugae
@Pedro Abreu it's Turing Complete with a manual crank right?
Because they are. HTML still counts as a programming language because you are programming a computer to display something.
@@hexagonist23 Apparently some technical definitions say that a programming language is any turing complete language, which HTML isn't.
I was not prepared for this level of excitement when I started my browser and had a look at YT
That's like weaponizing the old "10: "Hello" 20: goto10 routine we did as kids in the computer store
we used a "10: start C:/kill.bat 20: goto 10" to get those little kids playing stupid flash games out of the computer room in school. "hey, can I just print something real quick?" write it in editor, save and execute. PC froze after a few seconds and the system was built in a way, that it prevented them from logging in again. why? don't ask me. It worked.
Well technically that is just a basic infinite loop. A fractal is a special type of recursive infinite loop where the content of each iteration has a special geometric properties.
@@skeptic1000 not talking about fractals here, just simple recursive scripts.
Me finding out that postscript is a programming language and trying to print an infinite loop.
I like
:A
start A.bat
goto A
save as A.bat
If it is going to crash, you better save.
Since powerpoint is turing complete, you could probably automate this process :thinking:
did microsoft make it turing complete on purpose?
@@GameCyborgCh No, not intentionally, but animations can be abused to make a turing machine.
@MichaelKingsfordGray
By your logic all computers aren't Turing Complete
It is true, but in practice it is useless
Turing complete generally refers to the computational process, and are basically assumed to have infinite memory. As Your2ndPlanB only referred to 'powerpoint' as turing complete, and it is just the software, then sure. Powerpoint is plenty TC, it's just the universe that isn't.
Uhm, actually powerpoint in an infinitely big computer wouldn't crash, so it's not powerpoint's fault but steve mould's computer's.
8:21 keep going; don’t stop
And so it came to be, a new fan-fic was born.
Tentin Quarantino Wh-why did you do this
A colleague of mine once created a CAD file he could no longer open, by inserting it into itself as a block. Oops.
@MichaelKingsfordGray Right we have the same issues with poor XML parsers (exponential entity expansion for example en.wikipedia.org/wiki/Billion_laughs_attack). Though if you ever tried to implement an XML parser yourself you will realise that for several possible issues there's no easy fix. Most programming languages detect unconditional recursion of a function. However most of them fail to detect cyclic recursion of two or more functions. Things easily become too complex to detect all possible things that can go wrong accidentally or on purpose.
That's also why things like Meltdown ( en.wikipedia.org/wiki/Meltdown_(security_vulnerability) ) are actually possible. Most things (hardware and software) nowadays are too complex to guarantee security / safety.
@@Bunny99s I open all my XML in Notepad. Yes. I haven't experienced the full awesome of XML. It's called abstinence.
hahah nah weird data structures.
If you can rotate the paste link'd objects then you can make fibonacci spirals! I feel like there's a way to make dragon curves too... For the first time in my life, I wish I had Powerpoint!
But he is costlier than Dr. James Grime!
Liking this comment because I want the rumours to spread!
Steve Mould Yesss...that’s why.
Could we get a video somehow relating to the difference of three squares I wonder? Maybe we could upgrade them to cubes?
This is the best use of filming a screen instead of using screen capture software I've seen. Great presentation, guys.
I had to try it myself. If you have another version of Powerpoint, make 2 sierpinski presentations that include each other, and update them alternately. UPDATE: I crashed Powerpoint :-)
I had the same issue but found a way to make it work! You have to create one slide with the full size trinangle. On a second slide you paste the link to the first slide 3 times as shown in the video. Now you paste a link of the second slide on to the first one and drag it until it matches the slides scale and hit ctrl + s :)
"HTML is my favourite programming video" *Goes to close video*
*Sees Matt's face* "Nevermind"
If you disagree I suggest you watch the Computerphile video on the subject.
you mean language?
I'm wondering if he was serious about it being a programming language because of that look...or was that pause for other reasons
@@eL_K_Dee I think he was being sassy, because of all The smart-asses that love to boast that HTML is not a programming language even when they fail to have a clear definition on the term.
@@patriciaverso How about this definition of a programming language: A language intended for writing computer programs. That will exclude HTML, CSS, and everything that is not intended for programming. You CAN write a program with a lot of weird tools, like minecraft, powerpoint, etc. But they are not programming languages, because they are intended for something else.
12:00
Carl: What the hell are you two doing?!
Dave: They're mathematicians...
Carl: Oh. Okay!
the little throwaway bit of ruler business at 11:59 is what makes this video
10/10
It is so cute how excited they get by powerpoint presentations and their features. Loved every second of this!
This is exactly what I would picture teachers doing in their free time.
"Yo dawg. Heard you like powerpoint presentations..."
Oh.... My..... God
So I put a PowerPoint inside your PowerPoint inside your PowerPoint inside your PowerPoint inside your PowerPoint inside your
PowerPoint inside your
PowerPoint inside your
PowerPoint inside your
My favourite programming language is good old txt
I use cat to interpret my programs, sometimes less for debugging and sed with awk for metaprogramming
This video has been lying in my watch later for a year and it was amazing. Love you guys.
But can you do it with Libre Office Impress?
Navaneeth M Nambiar
No, no, no...
This is not How it works! The line is
„Very impressive...
But can you do it with libre Office impress?“
@@12xx12100 ha ha, my bad.
It would crash on the first iteration
@@srpenguinbr I don't think so though I have not tried it
@@metachirality Any results yet?
6:13 "The D is gonna work its way down!"
Matt, you cheeky boy...
And we C where it goes!
Also at 8:24 "Don't stop! Keep going!"
Bro, you don't have to sexualise absolutely everything
@@fireskorpion396 Yeah, but he said, "That C is racing on and that D is chasing it down". So, had no options...
That glance at the camera at 0:52 is why I love youtube
0:47 Matt's glance is pure comedy gold
This is exactly why computers will revolt and kill us all.
Or at least the Microsoft Office suite
This is how the opening cinematics of Star Wars are created.
This is genuinely the first time and the only time that something useful has come out of PP.
I’ve made a large Pascal’s triangle in Excel before. It was a pain but pretty fun finding work arounds for floating point (numbers got too big) and how to offset the cells to make a triangle. My computer didn’t like how much it had to work either.
First frame: *sees red pipe*
Oh good, a steve mould collab.
I would happily watch a series of "Matt and (insert random guest) stand next to a computer, and do some screwing around"
Looove that kind of stuff! Using software and machines for anything but their intended purposes to see what comes out is one of my hobbies.
When I was a kid, my drawing program of choice was the shape tools in Microsoft Word. This is like a whole new level of satisfying to me.
"HTML is my favorite programming language."
11/10 master troll
Very cool stuff, look forward to seeing you guys on the 28th!
Loved that collab and your combined enthusiasm for the wonders of PowerPoint! Please more :)
I wish I had these two teachers at school, really doing these sort of things in lessons. I love you guys! :D
My favorite programming language is punch-cards
Hi! When your Powerpoint stopped working at the Triangles section, it might be worth checking if you have Powerpoint running on a Dedicated GPU (i.e., a decent enough Nvidia or AMD card) and not any integrated graphics.
I was working with Tetration (up to 50th degree) graphs in a combination of Excel and Word, and the only way it would work stably during editing was by forcing it to use a dedicated GPU.
Love the video!
This was surprisingly enjoyable, had a smile on my face the whole time!
3:55
"this could take a second"
Takes a second.
My favorite programming language is .bat
At least it's actual programming.
Dats real tho!
a scripting language is still a programming language
Honestly kind of wish I'd picked something different to learn when I decided I want to learn a language.
@@NickBailuc Yep, as long as it has Loops and Branches, both conditional and unconditional.
"The C's are racing ahead, and the D is now chasing it."
Love you Matt
Thank you Matt and Steve! This is awesome!
Two of my favorite RUclips’ers in one video, this is awesome!!!
I messed around a bit and was able to create the T-Square Fractal. It took a while but I think it turned out pretty well. If you want to see the image, here is the link: imgur.com/a/YmRJDYx
Javascript is my favorite markup language
Python is my favorite stylesheet
Turing machines are my favourite finite state automota
JavaScript is my favourite backend server language. Genuinely.
@@SteveMould I like Node.js too :)
@@SteveMould sorry but screw you
12:04 that smile after the ruler is classic
I was just watching the piezoelectric video , and boom, another collab of my fav tubers !
I hope I'm not the only one who burst out laughing at "The C is racing ahead and the D is now chasing it"
Steve is a cool guy despite his "programming language" preferences : He have a Pebble watch !
I can't believe how much I enjoyed this.
this dudes setup is insane, the beige keyboard is on point.
Any chance you can insert your shirt onto your shirt?
Michael Rodgers
You could have a shirt printed with a shirt on it (for Monday)
Then have a shirt made with a photo of that original shirt on it for Tuesday.
Loop {
Then have a shirt made with a photo of the previous shirt on it for the next day
} while Alive=1
HTML? Nothing beats minecraft command blocks
delete from comments where comment like '%SQL%' ;-)
@@sharpbends Sorry, I changed my original comment :p
@@koosnaamloos4291 Me too, my comment was recursive it should delete itself :-)
tbh this is the most productive use of powerpoint found to date
This is the most relatable video I’ve watched in a long time.
If you don't want to have to embed another presentation and hit save, just drag the preview image of the slide from the left onto the same slide. It will automatically propagate!
you did *not* just call the cantor set uninteresting, it has phenomenal properties
Not uninteresting. Underwhelming
@@romajimamulo they said afterward "lets look at a more interesting one" which granted only implies its uninteresting
@@terdragontra8900 fair.
It's not visually interesting though
@@terdragontra8900 No, it implies looking at an even more interesting one. The "uninteresting"-part is mainly due to perceptual bias, methinks. :P
@@zbnmth I meant "imply" in the colloquial sense, not the mathematical one (:P), it doesn't look the coolest, but it has the coolest properties imo, for instance it has the same cardinality as the reals
i love how excited he is about fractals
That second presentation was a bold move :+)
Now make the Ackerman function in PowerPoint.
Man of culture here
What keyboard is Steve using here? (It sounds fantastic!)
You guys are the best! Thanks for sharing!
Totally showing this video to the homeschool group! This is fun.
Steve: "HTML is my favorite programming language"
Me: "It's not a--"
Matt looks at me
"Ok It's a programming language."
Matt, did you make your shirt using a presentation created by Steve?
This is so nerdy. I love it
The degree of nerdyness of this video just crashed my brain!! You guys are recuring each others nerdyness and therfore creating a nerdfractal..
I've got a deadline in 8 hours, why am I watching two grown men make PowerPoint presentations?
*How to create a memory leak in 10 easy steps (works every time!!)*
Technically, they started with a memory leak and then added to it.
@Ken Smith You just won the Internet for me today.
Steve's channel is about "pouring things on a garage floor", and it's amazing.
MIND BLOWN. Never knew Microsoft Office is capable of such feat.
In this video: Matt Parker and Steve Mould create a memory leak.
Have you guys seen the video showing that PowerPoint is Turing complete?
I loved the surprise ending!
you got an instant like for forcing steve mould to make more content!
6:45 "And now it's a square.. a perfect square!" ... hah, subtle! It's a perfect square not a... erm... imp... PARKER SQUARE!
My favourite programming language is Windows 2000
*_M I L L E N I U M E D I T I O N_*
Steve Mould is really my favourite mathematician content creator on RUclips
idk why i just got this excited when he put the link in the bottom left because i knew exactly where it was going