This Function is Hiding a Very Special Property.

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  • Опубликовано: 30 сен 2024

Комментарии • 68

  • @archimedes-316
    @archimedes-316 7 месяцев назад +127

    polya isn't pregnant but he sure delivers

    • @RubyPiec
      @RubyPiec 7 месяцев назад +14

      proof that he isnt pregnant?

    • @archimedes-316
      @archimedes-316 6 месяцев назад +32

      ​@@RubyPiecI have a truly marvelous demonstration of this proposition which this margin is too narrow to contain.

    • @ianweckhorst3200
      @ianweckhorst3200 6 месяцев назад +4

      Gregnant

    • @arnoygayen1984
      @arnoygayen1984 6 месяцев назад

      ​@UCEbh7mg1hOvVcHN6cef0zdQlink it, it's not the era of fermat

    • @orangesite7625
      @orangesite7625 6 месяцев назад

      ​@@ianweckhorst3200gradient

  • @robinsparrow1618
    @robinsparrow1618 6 месяцев назад +4

    this problem is really easy to implement with a recursive function and actually lead me to writing my first bit of c++ code in some years to get a solution. definitely more of a bruteforce approach than what you did, but i'm glad to know i'm not too rusty :)

  • @izme1000
    @izme1000 7 месяцев назад +14

    My favorite part about this is its simplicity after the fact. Just look at the thumbnail again, and the f(n) flows into the answer.

    • @Polyamathematics
      @Polyamathematics  7 месяцев назад +3

      Glad you enjoyed it!

    • @izme1000
      @izme1000 7 месяцев назад +1

      @@Polyamathematics Glad you shared it!

    • @ianweckhorst3200
      @ianweckhorst3200 6 месяцев назад

      I keep thinking about repeating the function again and again to see where it converges because I’ve had too much experience with the collatz conjecture

    • @jamesmoran7511
      @jamesmoran7511 6 месяцев назад

      I challenge what you define as facts. Narrow minded fools find meaning in math

  • @dranterg
    @dranterg 7 месяцев назад +10

    this video was good bro keep it up and the style is nice

  • @loafee
    @loafee 6 месяцев назад +9

    Notice how your video is picking up in the algorithm after you increased the production quality. Its not a coincidence trust me. Keep up the the good work boss. 🙏

    • @Polyamathematics
      @Polyamathematics  6 месяцев назад +1

      Thanks a lot. (Next video is going to be a whole level above this one in production quality)

    • @loafee
      @loafee 6 месяцев назад

      @@Polyamathematics amazing to hear bro. What software are you using to animate your videos?

    • @Polyamathematics
      @Polyamathematics  6 месяцев назад +1

      Davinci resolve (free version). Although I'm also playing around with some 3D stuff in blender

  • @lordzombox
    @lordzombox 6 месяцев назад +5

    That was a nice problem !
    I kinda regret to have been lazy and not try to find right away the solution, but instead just code a recursive program in python that does exactly what f(n) do (and it's matching, 455 possible numbers n such as f(n) = f(2011) )
    Well, it is still a proof of the theory, in the practice. Never a bad thing to do both ways :)

  • @pixtane7427
    @pixtane7427 6 месяцев назад +5

    Video is great but microphone is abrupt. If it was smooth then video would be really good

    • @Polyamathematics
      @Polyamathematics  6 месяцев назад +5

      Yeah, hopefully the microphone issue should be fixed in the future.

  • @3TheHedgehogCoder3
    @3TheHedgehogCoder3 7 месяцев назад +8

    After watching the video I thought you would have a lot more views and subscribers. This is really good!

  • @debblez
    @debblez 6 месяцев назад +4

    thought about it for like 5 minutes so probably wrong is it 461

    • @debblez
      @debblez 6 месяцев назад

      damn i forgot to exclude numbers up to 2048

  • @Polyamathiszyzz
    @Polyamathiszyzz 6 месяцев назад +10

    Couldn’t even edge to this… exploded immediately! Clean up on aisle my pants!!! 😂😂😂

    • @seon3350
      @seon3350 6 месяцев назад +1

      Thank you Polymathiszyzz for this information

    • @amr0733
      @amr0733 6 месяцев назад

      ​@@seon3350Thank you Polyamathiszyzz for this information

    • @nosang69
      @nosang69 6 месяцев назад +1

      this is highly inappropriate he is a minor

    • @karinabrahmathematics
      @karinabrahmathematics 6 месяцев назад

      @@nosang69Agree. Reported immediately, I hope you did the same.

    • @karinabrahmathematics
      @karinabrahmathematics 6 месяцев назад

      @@nosang69 Agreed. Reported immediately, hope you did the same. Great video as usual @polyamath

  • @MathematicsOne
    @MathematicsOne 6 месяцев назад +4

    Without a doubt a fantastic video, I appreciate you sharing it!

    • @jamesmoran7511
      @jamesmoran7511 6 месяцев назад

      Nothing fantastic except for you being a fool. I find it hilarious

  • @duralante
    @duralante 7 месяцев назад +4

    Wow!

  • @rejected4760
    @rejected4760 6 месяцев назад +2

    How do you even calculate that f(4) equals 2?
    It just tells you that f(4) = f(2*4) = f(8) and so on.

    • @Polyamathematics
      @Polyamathematics  6 месяцев назад +2

      Set n=2. Then f(2) = f(2*2).
      Set n=1. Then f(1) = 2f(2*1)
      So f(4) = f(2) = 2f(1) = 2. In general the goal is to iterate all the way down to f(1).

    • @rejected4760
      @rejected4760 6 месяцев назад

      @@Polyamathematics but f(1) is not = 2f(2*1), its = 1
      im just wasting your time because im not going to understand the "grammar".

    • @Grizzly01-vr4pn
      @Grizzly01-vr4pn 6 месяцев назад

      @@rejected4760 f(4) = f(2·2) = f(2) ⇒ f(2) = f(2·1) = 2f(1) = 2·1 = 2

  • @xusdk
    @xusdk 7 месяцев назад +2

    I'm a programmer so I'm unable to solve even f(2)
    If I substitute n for 2, it cascades in the positive direction.

    • @Polyamathematics
      @Polyamathematics  7 месяцев назад +7

      Substituting n=1 into f(2n) = 2f(n) gives f(2) = 2f(1) = 2
      In general if you're finding f(m) write m as 2k or 2k+1 and then find f(k) and k is strictly less than m so repeating the process gets you down to f(1)
      Hope that helps!

    • @noahchristensen3718
      @noahchristensen3718 7 месяцев назад

      Gotchu fam, check my comment.

    • @noahchristensen3718
      @noahchristensen3718 7 месяцев назад

      Nvm, it's garbage. Programmer's life lol.

  • @icew0lf98
    @icew0lf98 6 месяцев назад +1

    I need to start considering change of basis in the future

  • @silver6054
    @silver6054 7 месяцев назад +1

    Very neat, but I wouldn't call it number theory

    • @_arie_s
      @_arie_s 6 месяцев назад +2

      Words of someone who has taken highschool number theory

  • @EMAngel2718
    @EMAngel2718 6 месяцев назад

    I'm curious now what kind of mathematical function you'd have to make for it to have the described behavior

  • @anonymoususer9837
    @anonymoususer9837 6 месяцев назад +3

    Nailed the form of f, but brute forced the combinatorics as a partitioning problem and missed two of the partitions of 11, leading to an answer 40 too low...

  • @scienc-ification2539
    @scienc-ification2539 6 месяцев назад

    nicee

  • @ottlight
    @ottlight 5 месяцев назад

    wysi

  • @tontonbeber4555
    @tontonbeber4555 6 месяцев назад

    Yes, you can find a polynomial equation of the 4th degree.
    In fact you can find whatever you want as soon as you have 5 parameters.

    • @Polyamathematics
      @Polyamathematics  6 месяцев назад +1

      Sorry it's not clear from the thumbnail but the function f is defined in the video. The video wasn't about Lagrangian interpolation

  • @beaverbuoy3011
    @beaverbuoy3011 6 месяцев назад

    amazing

  • @tom-kz9pb
    @tom-kz9pb 6 месяцев назад +2

    A lot of people might start working on a solution simply based on the video title, without getting any clues by watching more of the video, right away. In this case, was just trying to find a polynomial expression for the function "f(n)" that produced the right mapping of values, as stated. It would be nice to have an upfront warning if there is actually more to the problem statement.

    • @Polyamathematics
      @Polyamathematics  6 месяцев назад +1

      I'll take that on board in the future. Thanks.

  • @eeshasingh3844
    @eeshasingh3844 2 месяца назад +1

    Bro is the goat 🔥🔥

  • @jamesmoran7511
    @jamesmoran7511 6 месяцев назад +1

    The pattern is purely imaginary. Nothing more pointless than people who find meaning in mathematics.

    • @Oskar5707
      @Oskar5707 6 месяцев назад +1

      I bet you like your house to stand upright, your car to drive, your phone to charge, stfu

    • @mangeshmandlik3772
      @mangeshmandlik3772 6 месяцев назад +11

      Your comment is purely juvenile. Nothing more pointless than people who don't think before they type.
      Have you heard of cryptography? Or do you store your money in the flush tank?

  • @fhffhff
    @fhffhff 6 месяцев назад

    2011=11111'011011(2)=10101(2) 1,1,3,7✓