a Pascal identity you probably never heard of

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  • Опубликовано: 19 янв 2025

Комментарии • 68

  • @ianfowler9340
    @ianfowler9340 Месяц назад +37

    Very well presented. Who would have ever thought. Thanks Dr. P.

    • @drpeyam
      @drpeyam  Месяц назад +5

      Thank you so much for the suggestion :)

  • @TwoGrids
    @TwoGrids Месяц назад +76

    e is that one kid in high school who knows literally everyone

    • @daniel_77.
      @daniel_77. Месяц назад +7

      Pi is his older friend

  • @Nibor999
    @Nibor999 Месяц назад +26

    I like this a lot. However, It's not really that surprising if you recognise that (1 + 1/n)^n is simply a binomal.

  • @juauke
    @juauke Месяц назад +16

    This is very unexpectedly cool!
    I didn't think the factorials would all cancel out (I thought we would have needed Stirling's formula)

  • @worldnotworld
    @worldnotworld Месяц назад +4

    How in the world? Pi and e are like church steeples in an old European town that keep unexpectedly revealing themselves when you round a corner. And Pascal's Triangle is rife with churches and innumerable other surprises. Many thanks! (p.s. plus sign at 7:13 was a trivial mistake)

  • @anwarahmad7076
    @anwarahmad7076 Месяц назад +7

    Taught about it by Sir Rana in 1999 in our 11th grade in Quaid-i-Azam College, Chaklala, Rawalpindi, Pakistan. 🥰

  • @Geenimetsuri
    @Geenimetsuri Месяц назад +8

    Love the result! Also liked the enthusiasm! Good vid!

  • @alipourzand6499
    @alipourzand6499 Месяц назад +21

    Unexpected indeed! Next challenge, pi from pascal triangle ... ☺

  • @DDXMalow
    @DDXMalow Месяц назад +4

    I was just thinking about pascal identity and it’s connection with pascal triangle , thanks for the vid you’re great

  • @seanoneill2098
    @seanoneill2098 Месяц назад +2

    Thank you for sharing this.

  • @Khashayarissi-ob4yj
    @Khashayarissi-ob4yj Месяц назад +1

    With luck dear Dr, Hoping for more videos.

  • @DiegoGonzalez-zs9wz
    @DiegoGonzalez-zs9wz Месяц назад +1

    Awesome! What did motivate you to examine that limit?
    Very fascinating the result!

  • @codahighland
    @codahighland Месяц назад +10

    Not especially surprising -- given that there's a RUclips video about it, it was either going to be e, pi, or phi, right? And we know that factorials can be rewritten in terms of e using the gamma function. I wonder if you could have done it that way!

  • @fifiwoof1969
    @fifiwoof1969 Месяц назад +2

    Grand finale is BEAUTIFUL!!!!

  • @fifiwoof1969
    @fifiwoof1969 Месяц назад +1

    9:08 think he says THIS wrong as "future over present and present over past" - if so presents cancel out then it's future over past BUT board shows future over present and past over present - BOARD LOOKS CORRECT THOUGH!
    Edit: i may have misheard him but again board looks correct - "future over present *divided by* present over past" my initial comment suggests he was multiplying instead of dividing which incorrectly leads to cancellation i mentioned previously.

  • @JoeTaxpayer
    @JoeTaxpayer Месяц назад +2

    This was great. A very unexpected surprise for me as well.

  • @maburwanejohannes4647
    @maburwanejohannes4647 Месяц назад +2

    Surprising things happen at infinity. I still can’t wrap my mind around the fact that the sum or product of rational numbers can become irrational at infinity.

  • @joyboricua3721
    @joyboricua3721 Месяц назад +2

    I would, because of the factorial nature of the entries.

  • @slavinojunepri7648
    @slavinojunepri7648 Месяц назад +2

    That's a cracking result, indeed!

  • @pedroalonso7606
    @pedroalonso7606 Месяц назад +1

    Well, I expected it from the low N value 64/27, but the proof was cool!

  • @mab9316
    @mab9316 Месяц назад +1

    Oh my God! And now what about the sum of the futur to the sum of the present or to the past??

  • @peterhawes9680
    @peterhawes9680 Месяц назад +2

    Great video but the thumbnail spoils the surprise 😂

  • @jesusalej1
    @jesusalej1 Месяц назад +1

    Il capo di tutti li capi!

  • @doctorb9264
    @doctorb9264 Месяц назад +2

    Where do you find this crazy stuff Peyam !

  • @jogeshjoshi2535
    @jogeshjoshi2535 Месяц назад

    Very Excellent 👍👍

    • @drpeyam
      @drpeyam  Месяц назад

      Thanks! 😊

  • @maynardtrendle820
    @maynardtrendle820 Месяц назад +1

    Very nice!🌞

  • @GoodWill-s8j
    @GoodWill-s8j Месяц назад +2

    You're awesome!

  • @federicosedilis9436
    @federicosedilis9436 Месяц назад +1

    where did you find this? WOW

  • @anamariagonzalezmolina5535
    @anamariagonzalezmolina5535 Месяц назад +1

    Fenómeno

  • @theproofessayist8441
    @theproofessayist8441 Месяц назад +1

    How???? How is this possible???? Great discovery!

  • @jcfgykjtdk
    @jcfgykjtdk Месяц назад +3

    Nice 😊

  • @Michael_Fischer
    @Michael_Fischer Месяц назад +1

    My favorit: 0 choose x = sinc(x) = sin(pi * x)/(pi * x) => 1 choose x = sinc(x) + sinc (x - 1) and so on.

  • @godlyradmehr2004
    @godlyradmehr2004 Месяц назад +1

    ❤❤❤❤❤ that's really amazing

  • @stlemur
    @stlemur Месяц назад +2

    Everything else is hidden in Pascal's triangle, why not e? :D

  • @edilon619
    @edilon619 Месяц назад +2

    Gosto de suas camisas.

  • @doppler_20
    @doppler_20 Месяц назад +3

    Why is it (N+1)^(N+1) and not (N+1)^N? Because we are starting at zero?

  • @Ali-i9c2y
    @Ali-i9c2y Месяц назад +1

    Hello from Indonesia Dr

  • @BabyXGlitz
    @BabyXGlitz Месяц назад

    دکتر پیام لطفا از قلم های ضخیم تر با نور بیشتر استفاده کنید، من این قسمت را خیلی دوست داشتم، ممنون

  • @vitorbueno6077
    @vitorbueno6077 Месяц назад +1

    I loved it…

    • @drpeyam
      @drpeyam  Месяц назад

      Thank you!!!!

  • @DaKeypunchAr
    @DaKeypunchAr Месяц назад +1

    The only thing that was abnormal to me in the video was him being lefty. But yeah.

  • @tylerduncan5908
    @tylerduncan5908 Месяц назад +1

    The baby is the sum of the parents....
    Thats not a family tree i want to be a part of.

    • @pamplemoo
      @pamplemoo Месяц назад

      technically kids are the average of their parents 🤓

  • @robshaw2639
    @robshaw2639 Месяц назад +1

    Where did you find this? I’ve never seen this before

    • @drpeyam
      @drpeyam  Месяц назад

      It was recommended by Ian Fowler, a wonderful subscriber of mine 😊

  • @xenumi
    @xenumi Месяц назад +1

    🤯

  • @mr.d8747
    @mr.d8747 Месяц назад

    *It wasn't surprising because the answer was literally in the thumbnail*

  • @MATH-jh1yb
    @MATH-jh1yb Месяц назад

    OwO! Very very! It's very, very surprising!

  • @daniel_77.
    @daniel_77. Месяц назад

    (Sigh, checks wikipedia)

  • @MohamedElmessoudi-l8e
    @MohamedElmessoudi-l8e Месяц назад +1

    Love the content, the erudition and the refreshing, child-like enthusiasm, but why act so effiminate?

    • @micknamens8659
      @micknamens8659 Месяц назад

      I guess his target audience are children, so he has to entertain them.

    • @MohamedElmessoudi-l8e
      @MohamedElmessoudi-l8e Месяц назад

      @@micknamens8659 Nah.
      Most of his posts are way above my grasp (and I am an old man), let alone a child's.
      Recently I did watch another interesting post of his, till the point where he mentioned his 'partner'. That ruined it for me.

  • @ВикторПоплевко-е2т
    @ВикторПоплевко-е2т Месяц назад

    The notation is discusting

  • @BabyXGlitz
    @BabyXGlitz Месяц назад

    I think e should be worshipped

  • @antoniocampos9721
    @antoniocampos9721 Месяц назад

    Man, math seems to be funny for you.

  • @gibbogle
    @gibbogle Месяц назад

    All that remains is to show lim(1 + 1/N)^N = e.