The Stick and Balls Method

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  • Опубликовано: 10 дек 2024

Комментарии • 91

  • @WrathofMath
    @WrathofMath  8 дней назад +28

    So apparently it's more commonly called the stars and bars method. The more you know 🌈
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    • @MichaelDarrow-tr1mn
      @MichaelDarrow-tr1mn 8 дней назад +2

      no it's stars and bars

    • @Zoooooooooooo
      @Zoooooooooooo 7 дней назад

      i would put that in the title or description to increase views. people are more likely to google stars and bars

    • @dquixal77
      @dquixal77 6 дней назад

      My teacher used to use the *Dicks and Boobs* method.

    • @iamdigory
      @iamdigory 6 дней назад

      Oh great, so I can be racist or obscene, great

    • @dquixal77
      @dquixal77 4 дня назад

      Why so serious ​@@iamdigory? 🃏

  • @Martykun36
    @Martykun36 8 дней назад +77

    ✋ Stars and bars
    👉 Sticke and balls

  • @tim3line
    @tim3line 8 дней назад +99

    the freaky method

    • @Gamr-bc6kp
      @Gamr-bc6kp 7 дней назад +3

      What if instead of mathematics it was freakymatics and instead of adding numbers together you added genitals together?

    • @Zoooooooooooo
      @Zoooooooooooo 7 дней назад +4

      the diddy method

  • @matematixyt
    @matematixyt 8 дней назад +65

    0:31 In true math problem fashion, these guys' initials spell out "A B C D". Can't have a math problem without these.

    • @KPQZ
      @KPQZ 8 дней назад +2

      Hi! You like maths. I don't blame you. Keep doing what you want to do. Bit surprising seeing you here.
      Also, here are some names I'll come up with on the spot for each letter:
      Aaron, Bobby, Chaucer, Dominique, Eric, Franz, Georgie, Hailey, Ian, Jack (you know... or perhaps you _don't_ know...), Kayla, Larry, Mike, Naomi, Owen, Patrick, Quincy, Randolph, Sally, Tanya, Ulrich, Victor, Wally, Xavier, Yanny, Zephaniah... actually quite strange. Huh.

    • @somenerd8139
      @somenerd8139 7 дней назад +2

      @@KPQZare you good bro?

    • @jurjen909
      @jurjen909 7 дней назад

      ​@@KPQZleast ai commenter

    • @KPQZ
      @KPQZ 7 дней назад +4

      @@somenerd8139 Am I good? Am I bad? Am I? What am I? It seems that I am a 'bro', by the way you address me! But are you lying? Are you telling the truth? Is this the correct conclusion, knowing that the lack of a comma seems to imply that you're asking if I'm a 'good bro'? Back to the point. Am I good? What _is_ good? Is good about quality or morality? Perhaps neither? Perhaps you've made a conlang where 'are you good bro?' means 'Thank you!', 'You're an idiot.', 'I can't read English, what does all of this mean?', or 'In the universe, we are just an insignificant blip in reality.'? Anyways, to answer your question, yes, I am indeed 'good'.

    • @GuyNamedSean
      @GuyNamedSean 7 дней назад +3

      I prefer Alice and Bob.

  • @oliverb7897
    @oliverb7897 8 дней назад +82

    stick n balls

  • @rot_kir
    @rot_kir 8 дней назад +50

    the stick and ball torture

  • @MathHunter
    @MathHunter 7 дней назад +18

    ❌Alice, Bob, Charles, David
    ✅ Adam, Bo, Chuck, Daryl

    • @WrathofMath
      @WrathofMath  7 дней назад +1

      🤣🤣

    • @Damien-d9f
      @Damien-d9f 7 дней назад +1

      We needed a bunch of sticks and balls

  • @spitsmuis4772
    @spitsmuis4772 7 дней назад +8

    7:30 An equivalent way to look at it (and which was the first that came to my mind), was to keep the original balls-and-sticks approach, but with three balls less (representing the minimum value of 1 for each die)

  • @Intrebute
    @Intrebute 7 дней назад +2

    Yo the fact that it reduces to powers of two is such a neat thing.

  • @chocolatebar6785
    @chocolatebar6785 7 дней назад +29

    please cover the hairy ball theory 🥺

    • @user-nex1us
      @user-nex1us 7 дней назад

      whats that?

    • @trelligan42
      @trelligan42 7 дней назад

      @@user-nex1us In topology, "You can't comb a hairy ball smooth."

    • @user-nex1us
      @user-nex1us 7 дней назад

      @@trelligan42 Why would it need to be specifically about a sphere? That is true for anything with hair.

    • @trelligan42
      @trelligan42 7 дней назад

      @@user-nex1us Because it's a topology idea. You know, spherical cattle with uniform density and all that.

    • @mystifoxtech
      @mystifoxtech 6 дней назад +1

      @@user-nex1us actually it's only true for 3d manifolds with an even number of holes

  • @elitettelbach4247
    @elitettelbach4247 8 дней назад +2

    The calculation for N choose M is one of the things that has stuck with me for so many years. Combinatorics is neat!

  • @adirmugrabi
    @adirmugrabi 8 дней назад +6

    If Chuck gets no chicken wing it just takes them from someone else.
    Chuck is very distinct

  • @moshadj
    @moshadj 8 дней назад +4

    When I saw the summation, I recognized the binomial expansion of (1 + 1)^(n-1)

  • @acmhfmggru
    @acmhfmggru 8 дней назад +6

    I was taught this as "stars and bars"

  • @ZilchZilch11
    @ZilchZilch11 7 дней назад

    It would be interesting to see if that last method could be adapted to count the number of partitions of n by imposing that the number of +s in a row is weakly decreasing.

  • @lightningbolt9155
    @lightningbolt9155 7 дней назад +3

    You HAVE to have known what you were doing with that title 😭

  • @Zoooooooooooo
    @Zoooooooooooo 8 дней назад +4

    dude i have my exam next week and i needed this

  • @hancocki
    @hancocki 8 дней назад +1

    first pizza, now chicken wings? ❤❤ I'm all for math problems being solved with food.
    8:29 Wouldn't the (6|2) solution assume the dice being rolled are distinct, such as rolling a red, blue, and green die set? If the dice are identical, my reckoning is there would only be 3 solutions, no? (1 2 4, 1 1 5, and 2 2 3)

    • @midston5843
      @midston5843 8 дней назад +1

      Yes, this method counts different orderings as distinct. Counting unordered permutations is significantly more difficult.

  • @Maker0824
    @Maker0824 8 дней назад +1

    That's a meaty example of those men's stick and balls

  • @Nargas011
    @Nargas011 7 дней назад

    In the dice problem I think you would do permutation, like dice 1 and 2 roll 1 and dice 3 roll 5 is the same as dice 1 roll 5 and the others roll 1

  • @Superskull85
    @Superskull85 8 дней назад +2

    Later in the video you mentioned an invisible man but in the first example you didn't mention one and assumed they were at the very end. That example was not as clear as the later ones.

  • @henrythearcticwolf4709
    @henrythearcticwolf4709 7 дней назад +3

    Perhaps we can use the stick and balls method together 😏😏😏

  • @ahuman32478
    @ahuman32478 8 дней назад +4

    I call it stars and bars

  • @vorquel
    @vorquel 8 дней назад

    For the last problem I would have recognized that we are summing over an entire row of Pascal's triangle which is a power of two

  • @madelinew2884
    @madelinew2884 5 дней назад +2

    Does this method help with finding multiplication partner?

    • @WrathofMath
      @WrathofMath  5 дней назад

      it's a theoretical possibility

  • @tiagonata1734
    @tiagonata1734 7 дней назад

    I remember this method in my probability course

  • @bscutajar
    @bscutajar 2 дня назад

    for the 3 dies equalling seven, why couldn't you find the ways you can make 4 and then add one to each? So for 0+3+1 the dice would be 1+4+2

  • @georgielearnplay
    @georgielearnplay 7 дней назад +1

    We should learn this in school

    • @WrathofMath
      @WrathofMath  7 дней назад

      Yeah, it's a great technique!

    • @Speed001
      @Speed001 7 дней назад +1

      I'm gonna be honest, i had a probability and statistics course, one of the big assignments was us making advertisements saying how its useful for our fields for the lower classmen.
      In the end, i doubt anyone was convinced of the usefulness of the course.
      It has it's uses, but it's far from a common tool.

  • @am-e7967
    @am-e7967 7 дней назад +2

    "we need one fewer sticks than we have men"
    hmm

  • @FrankAnzalone
    @FrankAnzalone 7 дней назад

    Ever wonder why mathematicians define factorial down to 1 when one doesn't multiply anything

  • @Quazex
    @Quazex 7 дней назад

    covalent bonds....

  • @andrewcheng1948
    @andrewcheng1948 8 дней назад +14

    haha seex laugh now :gun:

  • @writerightmathnation9481
    @writerightmathnation9481 7 дней назад +2

    Misspelled “Beau”…

    • @WrathofMath
      @WrathofMath  7 дней назад +4

      I call it a 'convenience spelling'

    • @trelligan42
      @trelligan42 7 дней назад +1

      On the contrary, I've known a Bo who was from Scandinavia (one of those countries up there). en.wikipedia.org/wiki/Bo_(given_name)

    • @writerightmathnation9481
      @writerightmathnation9481 5 дней назад +1

      @@trelligan42 lol

  • @000aleph
    @000aleph 2 дня назад

    I'm afraid your answer to the first example (286) is too high because we know for a fact that Brian BO-itano got several chicken wings

  • @surrealreal_
    @surrealreal_ 8 дней назад +1

    why are 3 of the names brawl stars references 😭

  • @DJF1947
    @DJF1947 7 дней назад

    The plural of die is dice, not dies.

  • @Slinguh1111
    @Slinguh1111 7 дней назад +1

    lol balls :))

  • @joe_z
    @joe_z 7 дней назад

    What stick and balls? All I can see in the thumbnail is a mirrored Patreon logo.

  • @jasonnathanmason3547
    @jasonnathanmason3547 7 дней назад

    Ayo

  • @jasonremy1627
    @jasonremy1627 7 дней назад

    Say stick and balls again...

  • @Yipper64
    @Yipper64 7 дней назад

    *balls*

  • @DeVibe.
    @DeVibe. 7 дней назад

    🫣

  • @Amexicantortilla
    @Amexicantortilla 8 дней назад

    Huh

  • @RUBBER_BULLET
    @RUBBER_BULLET 7 дней назад

    Wrath of English pronunciation.

  • @r-shu
    @r-shu 8 дней назад

    Ooooo, im early

  • @orrinpants
    @orrinpants 7 дней назад +2

    Be honest, you clicked because of the title