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Coding the Collatz Conjecture 

The Coding Train
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It's the second episode of Coding in the Cabana! Here I attempt to visualize the Collatz Conjecture in Processing. Code: thecodingtrain.com/challenges...
🕹️ p5.js Web Editor Sketch: editor.p5js.org/codingtrain/s...
🎥 All videos: • Coding Challenges
References:
🗄 Collatz Conjecture Wikipedia: en.wikipedia.org/wiki/Collatz...
💻 Collatz Graph: All Numbers Lead to One: www.jasondavies.com/collatz-g...
💻 Trying to visualize the Collatz conjecture: mathematica.stackexchange.com/...
💾 Primitive Data Types in Java (more information about the long type): docs.oracle.com/javase/tutori...
Videos:
🎥 Collatz Conjecture in Color: • Collatz Conjecture in ...
🎥 Golan Levin's Modulo Operator video: • Guest Tutorial #6: The...
🎥 UNCRACKABLE? The Collatz Conjecture: • UNCRACKABLE? The Colla...
Related Coding Challenges:
🚂 #14 Recursive Fractal Trees: • Coding Challenge #14: ...
Timestamps:
0:00 The Collatz Conjecture
4:10 Programming in Processing
6:46 Checking The Number of Steps
9:23 Visualizing The Collatz Conjecture
20:44 Rendering to a PDF File
22:24 Conclusions and Goodbyes
Editing by Mathieu Blanchette
Animations by Jason Heglund
Music from Epidemic Sound
🚂 Website: thecodingtrain.com/
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🎥 Coding Challenges: • Coding Challenges
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🔗 p5.js: p5js.org
🔗 p5.js Web Editor: editor.p5js.org/
🔗 Processing: processing.org
📄 Code of Conduct: github.com/CodingTrain/Code-o...
This description was auto-generated. If you see a problem, please open an issue: github.com/CodingTrain/thecod...
#collatzconjecture #modulo #processing

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28 июн 2024

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Комментарии : 312   
@gijsvandergiessen1150
@gijsvandergiessen1150 4 года назад
You truly are the Bob Ross of programming
@l3nn4rt24
@l3nn4rt24 4 года назад
Gijs van der Giessen definitly, and by the way: Happy Birthday Bob Ross...
@ionmurgu783
@ionmurgu783 Год назад
***How many apples you have in an **#Apple_Tree**, so many **#Dead_Nodes_Will_eat***** ***I appreciate your work in generally . I think here you are making a mistake. **#Collatz_Conjecture** into negative axes isn't a Collatz Conjecture , and if you follow my work , can see for what. Anyway as promised , I solved Collatz Conjecture via **#Murgu_Lemas** **#Collatz_Conjecture_Logical_Dead_Nodes_Lema** **#Eternal_Triad** (which demonstrated every odd Integers , except Logical Dead Nodes and **#Collatz_Perfect_Numbers_Dead_Nodes** but with a dual sense), and **#Collatz_Conjecture_Murgu_Formulas** --- **#Collatz_Conjecture_Solved** as promised. I worked on it in any **#Rest_Time_Times** , then take it as it is , but is solved at: " **ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-RPEGFZbNW2A.html** "*** ***Anyway , at this time **#Beauty_Math_Curiosity** (**#Mathematics_Curiosity** ) is **#Murgu_Conjecture_Vicious_Redundancy** " **ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vn3H7aUmftk.html** " for which I don't have dare to start over, because don't have time, but because maybe never will can demonstrate that have to had only 3 roots (1,5,17)***
@Melthornal
@Melthornal 4 года назад
Coding train is the best. Nothing inspires me to go work on my own projects like you. It is the combination of your personality and seeing you stumble and occasionally fail but still figuring it out in the end. It makes me feel like I can do the same thing.
@Holobrine
@Holobrine 4 года назад
I’ve found the Collatz conjecture is most interesting when viewed in binary, where the even numbers dividing by 2 essentially becomes chopping off all the zeros on the right side, and the odd numbers multiplying by 3 and adding 1 essentially becomes adding a number to itself bit-shifted one bit to the right and adding 1. There’s patterns in binary that you don’t notice in decimal.
@brikimbran
@brikimbran 3 года назад
Thank you.
@jesuslovespee
@jesuslovespee 3 года назад
Someone has messed with prng algorithms. Either that or has an inherent talent for them and should go dethrone marsaglia, the current rnjesus
@rustycherkas8229
@rustycherkas8229 2 года назад
I've only recently happened-across this corner of iterative functions... IMHO, you've hit the nail on the head with 'binary'... That 4-2-1 loop (surprisingly 'octal') is, I believe, KEY to understanding this whole business (but I don't have the math skills to express it as a 'proof'... Notice that seeding the function with zero ALSO goes into this loop (3 * 0 + 1 = 1)... All 8 octal bit patterns (0-7), as seeds, are contained within the lowest 3 bits. Adding another 3 bits (seeds ranging 0 - 63) and the trajectories will, like the infamous 27, occasionally take off toward the clouds, but will eventually decay to the loop... Add another 3 bits (0 - 255, total 3 octal digits) and some trajectories go even higher... BUT, they all decay to the loop again. There are interesting observations to be made about 'intervals' between some of the longer trajectories (ones that go for long excursions before landing on a previously 'used' value that is part of a path toward inevitable decay... 4n+1 points to some interesting seeds, like 32 - (4(1)+1) a.k.a. 32 - 5, our old friend "27"... Hmmmm So, it's been shown that all values of the highest octal digit value combined with all values of the middle octal digit value combined with all values of the lowest octal digit value eventually collapse to the 4-2-1 loop... Conceptually, trying 2 "middle" octals between the high octal and the low octal (ie 12 bits or 0 - 4095) should (will) express similar behaviour. Try 3 "middle" octals (total 15 bits) ... same thing... Viewing the intermediate values in binary, it soon becomes apparent that 'bubbles' of multiple zeroes form, and the lowest octal is desperately trying to drag the value lower (4 is even and 2 is even, so divide and divide... The bits have been shifted to the right twice, and stratospheric numbers come back down to the troposphere... Often a 'bubble' of 6 zeroes forms tantalisingly close to the LSB... A few more steps and the entire value collapses several orders of magnitude. It's fate is sealed and destiny a certainty... Veritasium recently claimed all numbers to 2^68 have been tried, and, for all variations of those 68 bits, all numbers eventually 'collapsed'... Excuse me for thinking this... I recognise that infinity is a very, very distant ceiling, but even with my 32bit explorations (lots of bit pattern variations) the decay begins after not too many iterations of the function... There are 'rallies' along some paths taken, but the conclusion seems inevitable... With nothing but this evidence and intuition, I'm happy to conclude that "bubbles will form" quickly enough (in the rightmost bits) that will reverse any excursion toward the stars, and the strange attractor of "4-2-1" is the fate of all positive integers that enter into the Collatz Conjecture...
@kaleygoode1681
@kaleygoode1681 2 года назад
Collatz(x) {return x&1 ? x+x>>1+1 : x>>1;}
@redfoothedude
@redfoothedude 4 года назад
I love the feel of these. Coding in nature to master the nature of code. Awesome!
@TheCodingTrain
@TheCodingTrain 4 года назад
Thank you!
@illkabongg
@illkabongg 4 года назад
Dan please do more of these, they are awesome
@cyborgamish
@cyborgamish 4 года назад
"I think that I've made a major error." Why does this make me happy ? Will he solve the issue ? How much time will he take ? I learned something today.
@winstonnnnn
@winstonnnnn 4 года назад
I love this series so much ^_^ it's really peaceful. And the Collatz Conjecture is one of my favorites!
@TheCodingTrain
@TheCodingTrain 4 года назад
Thank you! and Thank you for the support!
@rnistuk
@rnistuk 4 года назад
That is a great observation! It's like Daniel is the Bob Ross of coding! edit: I just watched the first in this series and saw that RU-vidr István Horváth ​already made the Bob Ross connection.. ​
@imharishsambasivam
@imharishsambasivam 4 года назад
Where you people got this emoticon..I need one
@nguyenhoanglong420
@nguyenhoanglong420 4 года назад
haha!!! For me Collatz Conjecture is mysterious!!!!
@elfurciax
@elfurciax 4 года назад
For those who wanna have the pattern like the numberphile video add: If (value%2==0) rotate(0.27-(0.0002*j)) Else rotate(-0.19+(0.00025*j)) Being j the index of value.
@westernbrumby
@westernbrumby 3 года назад
wrong
@SimonTiger
@SimonTiger 4 года назад
I think this video merits some clarification: 1. We don't know if the Collatz Conjecture is true, it's just a conjecture. 2. Both methods of visualizing it are actually the same, one is just a different arrangement of the other. 3. 20:45 - "Just take _a minute_ to ponder the fact..." - Slight understatement: Stephen Wolfram has built a whole new kind of science on this idea!
@dianewilliams5830
@dianewilliams5830 4 года назад
What amazing timing! This morning as I booted the computer, my goal was to program something creative and fun while learning something new in a casual, relaxed Sunday morning pace. My wish was granted when I saw the Coding in the Cabana notification. Right now the scene outside my window is a snow-globe world of gently swirling snow flakes. Thank you for transporting us all to the cabana and your garden. This series is a wonderful change of pace.
@TheCodingTrain
@TheCodingTrain 4 года назад
Yay, share what you make!
@KyleRice
@KyleRice 4 года назад
Yes episode 2
@simeondermaats
@simeondermaats 4 года назад
Yassssss! Always great to see videos inspired by Numberphile videos!
@aleksandarhorstmann7022
@aleksandarhorstmann7022 4 года назад
Your enthusiasm towards math, programming and the beauty of life overall 20:48 is something, that i think, most of the community shares and what makes you such a enjoyable fella to watch, btw love the new series of coding in the cabena😊
@astropgn
@astropgn 4 года назад
I am enjoying these videos so much :) - I saw the numberphile video, but having the perspective of coding it like this is a very nice addition! TY Dan
@ConstantDupuis
@ConstantDupuis 4 года назад
I really like the mood of this serie ! Nice mix of low and high tech, and covered subject are really good ! Thank's
@ulrich1741
@ulrich1741 4 года назад
Love to see you so relaxed!
@gregfletcher2360
@gregfletcher2360 4 года назад
Fantastic! Such a wonderful example of how algorithms can mirror the shape of nature
@moodeex3766
@moodeex3766 4 года назад
Love the chill atmosphere of the cabana
@danny_racho
@danny_racho 2 года назад
You inspire so many people and at the same time, you make learning fun! Great content
@squarebynature
@squarebynature 4 года назад
Coding in the 'Cabaña' technically speaking. Ñ (lower case ñ, Spanish: eñe, Phonetic Alphabet: /ˈeɲe/ "énye", About this soundpronunciation (help·info)) is a letter of the modern Latin alphabet, formed by placing a tilde (also referred to as virgulilla in Spanish) on top of an upper- or lowercase N. Gracias por tus super classes maestro :)
@TheCodingTrain
@TheCodingTrain 4 года назад
Indeed!
@squarebynature
@squarebynature 4 года назад
@@TheCodingTrain Thank you for keeping inspiring us every day...in the Cabaña ;) Gracias Maestro!
@TheCodingTrain
@TheCodingTrain 4 года назад
This will be the last video in this series using the chalkboard, apologies, I already shot this one before I got all the feedback on the first! Get the code and submit your version here! thecodingtrain.com/CodingInTheCabana/002-collatz-conjecture.html
@theakashd
@theakashd 4 года назад
This series is the most beautiful thing on the internet
@arivanhouten6343
@arivanhouten6343 4 года назад
I love your coding projects so much! Great work!
@algc19
@algc19 4 года назад
Woow this brought me memories! Nowadays I don't have time to code anything anymore. Great video as always
@boringextrovert6719
@boringextrovert6719 4 года назад
I'm simply unable to ignore and not like these videos immediately
@cmc.community8125
@cmc.community8125 Год назад
Love this, awesome style, makes me happy to learn! :)
@TreyWestoN
@TreyWestoN 4 года назад
love this series!
@lucasganciar4606
@lucasganciar4606 4 года назад
men that was a great ideia to code in an diferent inveronment that we mostly see in youtube, thanx a lot
@gamingbutnotreally6077
@gamingbutnotreally6077 4 года назад
Thank you for this dan!
@stacode
@stacode 4 года назад
Yey another episode in the cabana!!
@immortalf1719
@immortalf1719 4 года назад
Algorithms feel less scary and cold now, thanks to you! Great video and idea
@neeharikaroyal9293
@neeharikaroyal9293 4 года назад
Episode 2 is fantastic ☺️
@breisfm
@breisfm 4 года назад
Simply amazing!
@stakk4
@stakk4 4 года назад
LOVE your content. Please keep demonstrating projects in Java!
@wiiuwiiu2020
@wiiuwiiu2020 4 года назад
Loving the plants!
@soejrd24978
@soejrd24978 4 года назад
That was such a nice video, thanks!
@nicholasvarner2706
@nicholasvarner2706 4 года назад
Keep ‘em coming please
@pendragon7600
@pendragon7600 4 года назад
I'm loving the new series 👍👍
@subhajitmaji8855
@subhajitmaji8855 4 года назад
You have always won our hearts as well as gave us a lot of knowledge... The way you define the topic before coding about it changes the whole game... If someone doesn't know much about the topic can also understand it... ❤
@zanzaraloggan3713
@zanzaraloggan3713 4 года назад
Next time do a "Coding in the igloo"
@generic6ixty5ive
@generic6ixty5ive 4 года назад
Coding in northern Ontario
@driziiD
@driziiD 4 года назад
i love this series
@s-sugoi835
@s-sugoi835 4 года назад
i love this format. :)
@nanchao4170
@nanchao4170 4 года назад
you are my favorite RU-vidr!
@amosnimos
@amosnimos 3 года назад
so cool that it is possible to save your code output to a vector image in processing!
@laurihei
@laurihei 4 года назад
I love these simple visual excercises! They make me so inspired! :)
@CSGOClips12
@CSGOClips12 4 года назад
amazing series, was waiting for the 2nd one for soo long :D
@drivgest
@drivgest 4 года назад
I like your cabana. Its so quite and makes you focus on doing.
@armandsalle8447
@armandsalle8447 4 года назад
So nice and peaceful 😻
@ProIlluzionz
@ProIlluzionz 4 года назад
Love these ! Makes programming seem less stressful when youre in an environment like this
@FLHEXA
@FLHEXA 4 года назад
This is cool ! sometime nature seems so simply encodable it's quit astonishing. I'll try making art with this set of sequences. To me you should make a non linear progressive rotation to deal with the superposition you should even try color gradient. ;) Such a peaceful place for programming.
@siddhantjain2402
@siddhantjain2402 4 года назад
Please do every video in Cabana and probably some in the garden too 😍😍
@rahulkumarjha2404
@rahulkumarjha2404 4 года назад
I am eagerly waiting for his 1 million subs.
@unveil7762
@unveil7762 Год назад
Oooo yeah, faster and more controllable than an Lsystem. To make it grow you can trail particles. So also size of the particle can be set to be part of the game 🎉
@anuraghazra4772
@anuraghazra4772 4 года назад
Can't wait to make my own variation of this, will surely do this after i come back from vacation.
@TheCodingTrain
@TheCodingTrain 4 года назад
Looking forward to it!
@anuraghazra4772
@anuraghazra4772 4 года назад
@@TheCodingTrain yes 😄 I haven't made my own variations for a while because I haven't got the time to do so. 😄😄 but i will also do the #TeamTrees one and this one too ❤ #TeamTrees
@cipherhex
@cipherhex 4 года назад
While adding the "(3n+1)/2" trick from the Patreon Slack channel (at 18:11) will speed up the processing of getting each 'n' down to 1, surely it's not the "same sequence" anymore? (essentially it's skipping out even numbers). This would mean the visualisation has less clockwise rotation, and would be one reason why Dan's looks different to Edmund Harris' original visualisation. Anyway, loving the chilled out Cabana videos, Dan!! :D
@TheCodingTrain
@TheCodingTrain 4 года назад
Thanks for this feedback!
@sadhlife
@sadhlife 4 года назад
yeah exactly, I'm pretty sure just changing that back will fix thr entire image
@cphoover11
@cphoover11 4 года назад
This is quality content
@hamzahhamzahhamzah
@hamzahhamzahhamzah 4 года назад
I am really glad that we have someone like you in youtube, i am wondering if i can challenge you with some coding with matter.js, can this plugin add physics to text and letters ? would it be able to add physics to it ? for example a circle hitting the text and it would explode ? i would really really appreciate it if you can look into it :)
@Prajjwal4242
@Prajjwal4242 3 года назад
I hope one day I would be able to code like you.
@rayanfernandes2631
@rayanfernandes2631 4 года назад
you are the coolest prof i know.... 🤩🥰 ....
@okawo80085
@okawo80085 4 года назад
That scratchy board gives me weird flashbacks to a brocken board in my old math class 😞
@jefflhama
@jefflhama 3 года назад
Oh my God! I did it! I'm translating the code to godot and it's amazing!
@benjamindragon598
@benjamindragon598 4 года назад
I love processing and exporting my own pdfs
@lichungunathan7554
@lichungunathan7554 4 года назад
the cabin is perfect for processing , simulating nature in nature ,love it
@dan-garden
@dan-garden 4 года назад
The dampening of the chalk sound makes it alot more watchable, loving this series so far!
@yashwanthd1998
@yashwanthd1998 4 года назад
Please do videos on postfx in processing they are really dope and important
@cvetelingeorgiev1527
@cvetelingeorgiev1527 3 года назад
Next time try coding the chaotic movement of dust particles after step dancing in the cabana . ;) Good video with nice mood!
@haideralipunjabi
@haideralipunjabi 4 года назад
I remember when the Numberphile video came out. I visualised it in p5, and was discussing it in my school with my friends. Another friend of mine was playing volleyball nearby and had given me his phone to broadcast the game on Instagram live. I set-up the phone near me and forgot about it and continued my discussion. The next day, my volleyball friend met me and said that many people messaged him and asked him what kind of nerd friends he has.
@haideralipunjabi
@haideralipunjabi 4 года назад
P.S: A third of my tea evaporated due to boiling while I wrote the comment
@jg9193
@jg9193 4 года назад
delightful
@mahmoudattalla2972
@mahmoudattalla2972 2 месяца назад
N= positive odd number. N changes to (3N+1)/2 (3N+1)/2 could be: 1- (3N+1)/2 = positive odd integer 2- (3N+1)/2 = positive even integer 1- assume (3N+1)/2 = positive odd integer, Since N = positive odd integer, it could be a value for (3N+1)/2 So, (3N+1)/2 = N 3N + 1 = 2N 3N - 2N = -1 N = -1, which contradicts with N = positive odd integer. So, the assumption (3N+1)/2 = positive odd integer is false. 2- assume (3N+1)/2 = positive even integer, Since N + 1 = positive even integer, it could be a value for (3N+1)/2 So, (3N+1)/2 = N + 1 3N + 1 = 2N + 2 3N - 2N = 2 - 1 N = 1, which does not contradict with N = positive odd integer. So, the assumption (3N+1)/2 = positive even integer is true, and (3N+1)/2 will change to smaller value (3N+1)/4 < N, getting toward the destination 1. If N = 1, (3N+1)/4 will equal 1, which is a term within the destination loop 1 → 2 → 1. So, N = positive odd integer, just changes to (3N+1)/2 = positive even integer, which changes to (3N+1)/4 < N, getting toward the destination 1. So, Collatz conjecture is true. Eng. Mahmoud Attalla. WhatsApp: +20 1112669096.
@irvinecattleranch
@irvinecattleranch 4 года назад
LOVE CHALK!!
@TheNewton
@TheNewton 4 года назад
TY, I hadn't seen these forms for CC before and for graphics the first thing I think is: Hair this is a way to cheat organic looking hair
@TheNewton
@TheNewton 4 года назад
now that I know a quick image search gives some really good results of graphing techniques for different visualizations besides the common graphs.
@chillmode9576
@chillmode9576 4 года назад
This is great
@tappineapple3381
@tappineapple3381 4 года назад
I really want to work on this now :) I'll see if I can find a way to export a p5.js project as PDF!
@wexer82
@wexer82 4 года назад
Love it
@seanziewonzie
@seanziewonzie 4 года назад
Perhaps the issue is that you don't rotate back until you get to the next starting number? I think you should reset the rotation after every move. From what I understood, the tendrils should never be able to do full rotations. They'll all be within the spread -π/6 to π/6
@TheCodingTrain
@TheCodingTrain 4 года назад
oh! Yes, that makes sense!
@evenprime1658
@evenprime1658 3 года назад
really you can just check if the sequence ever reaches a power of 2 cause if it does then every successive number after it, will divide by 2 until it gets to 1. Im sure there are many other simplifications possible but i get it the point was to get the pretty diagram not efficiency
@iminni3459
@iminni3459 4 года назад
Perfect
@hashkeeper
@hashkeeper 4 года назад
wow, hopefully you saved all that output!!
@sharphurt8753
@sharphurt8753 4 года назад
Friend! Could you make a Coding Challange video where you implement the Bresenham algorithm for drawing a line in pixels between two points? It would be cool!
@prachetass
@prachetass 4 года назад
Love your videos. I am trying to replicate bubble shooter game in p5. Saw the Minesweeper one and space invaders and tried to incorporate logic from their. Can you please do bubble shooter game as a coding challenge.
@ZombieBrainz
@ZombieBrainz 4 года назад
Would make a really beautiful photoshop brush - very organic.
@truthteller4689
@truthteller4689 4 года назад
🎶Coding in the Cabana... Music and passion were always the fashion in the Coding Cabana... 🎶
@omaryahia
@omaryahia 2 года назад
cool, thank you
@smithwillnot
@smithwillnot 4 года назад
Warning, slight "rant": Man this was frustrating. My optimistic choice of using js + svg to do this and my inability to calculate coordinates properly were fairly frustrating but the worst part is the fact that original author actually used different angles for odd and even "turns". It should have been obvious if I had just done bit more testing, odd numbers just don't repeat in Collatz sequence and therefore if you use same angle for both turns you just get stuff that goes in circles with slight "scattering effect/fur looking". Well unless you try to be fancy like I was and calculate x coordinate with trigonometry and make mistake with y calculation getting basically sinusoidal curve with slight scattering from collatz's series...
@timolenton1904
@timolenton1904 4 года назад
Looking forward to some winter cabana episodes with a wood fire crackling in the background.
@TheCodingTrain
@TheCodingTrain 4 года назад
More likely just a warm coat and layers. . need an orioles beanie!
@maxwazowski6337
@maxwazowski6337 2 года назад
It seems that this works not only with 3x+1, but also with a polynomial of the form mx+1, where m is an odd number, m∈N ... Let's take x=1 and substitute m for odd coefficient. numbers: With m=1, everything is reduced to the cycle 2→1*; For m=3 everything is clear; For m=5 we arrive at 4→2→1; For m=7 we also get 4→2→1 *But with m=1 and x=2 you get 4→2→1
@theunknown4834
@theunknown4834 4 года назад
I've tried this once on scratch! It was fun actually
@vincentcleaver1925
@vincentcleaver1925 4 года назад
Orioles cap? Then I remembered you're from B'more... That's a nice shed, but it's gonna get cold inna winter, and winter is coming! 8-) Keep warm, keep on making these things
@kasuha
@kasuha 4 года назад
Perhaps instead of descending to 1 from every number, you could try to construct the tree recursively starting from 1 instead. For any number, multiplying it by 2 is an option. But when the number is even, you can check if it can be expressed as 3n+1 for an odd n and if yes, you get a branching point.
@westernbrumby
@westernbrumby 3 года назад
yep!
@lobsterfork
@lobsterfork Месяц назад
That white board that's black. The sounds. Like needles in my brain. Pain. Pain.
@ahmedhassanahmedhassan6495
@ahmedhassanahmedhassan6495 4 года назад
thank you 4 showing us how 2 save output drawing as vector file (pdf)
@ahmedhassanahmedhassan6495
@ahmedhassanahmedhassan6495 4 года назад
i believe in order to add it to MS Word file (.docx) it has to be in .emf format.... do we have this format as an option in Proccessing or P5.js ??
@sanderbos4243
@sanderbos4243 4 года назад
@@ahmedhassanahmedhassan6495 You can save it as a .png file by using 'save("collatz.png")' where he shows you to put 'endRecord();' in the code. This means you don't have to put 'beginRecord(PDF, "collatz.pdf");' and 'endRecord();' in the code! This means it doesn't look as good when you zoom in, so if .docx documents accept .svg files, you can save it as 'collatz.svg' instead, I think.
@maarkat
@maarkat 2 года назад
Thanks!
@TheCodingTrain
@TheCodingTrain 2 года назад
Thank you for the generous support!
@sinom
@sinom 4 года назад
Good old collatz conjecture. I think the second or third coding project I ever did was a program you gave in random numbers and it spat out if they still fit the conjecture (always building on the previous calculations to make the next one's take less time) but since there is no disproving example within the first 2^64 numbers the program was kinda useless xD
@teinili
@teinili 4 года назад
I wrote my "Facharbeit" in school on that topic :O
@FlareGunDebate
@FlareGunDebate 4 года назад
lol this is awesome!
@michalbotor
@michalbotor 4 года назад
recursive solution for p5.js (just the sequence): function setup() { const res = genCollatzSeq(27); console.log(res.length-1); console.log(res); } function genCollatzSeq(num) { const seq = []; function collatz(num) { seq.push(num); if (num > 1) { if (num % 2 === 0) { return collatz(num / 2); } else { return collatz(3*num + 1); } } } collatz(num); return seq; }
@richardslater677
@richardslater677 Год назад
Oh man, the noise that that pen makes on the board is excruciating. Is it a Guantanamo Bay torture?
@6754bettkitty
@6754bettkitty 4 года назад
Yay!!!!!!!!
@davidemanuel2929
@davidemanuel2929 4 года назад
I love that! Greetings from Berlin!
@phanirithvij
@phanirithvij 4 года назад
16:44 looks like a heart
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