A mathemagical card trick!

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  • Опубликовано: 24 ноя 2024

Комментарии • 257

  • @squarerootof-1307
    @squarerootof-1307 3 года назад +395

    he's so enthusiastic about math, its so wholesome :)
    i didnt really enjoy math before, but his ted talk inspired me, and now math is my favorite subject :)
    Thank you, Mr. Woo.

    • @MarckCat
      @MarckCat 3 года назад +2

      His Ted talk was average... 🤣🙏 But he is a good teacher👌

    • @reststop3632
      @reststop3632 3 года назад +12

      I did not like math
      Enthusiasm changed me
      Thank you Mr. woo
      I turned your comment into a haiku.

    • @christianpaul3651
      @christianpaul3651 3 года назад +2

      He is about math just like girls about scrotal sack

    • @ΚωνσταντίναΠετρίδου-μ1π
      @ΚωνσταντίναΠετρίδου-μ1π 3 года назад +2

      @@reststop3632 haha that was clever and creative at the same time, loved it 😁 nice inspiration you got there

    • @kiit8337
      @kiit8337 3 года назад +1

      @@christianpaul3651 🤣🤣🤣

  • @Alvin864-wy9ol
    @Alvin864-wy9ol 8 месяцев назад +1

    Eddie woo is good at everything

  • @nithilalogathas672
    @nithilalogathas672 3 года назад +320

    Eddie makes maths worth it

  • @dineshvyas
    @dineshvyas 3 года назад +373

    Switched red marker and blue marker 10 time and put cap on everytime, only a true mathematician would do it.

    • @raynalguillaume
      @raynalguillaume 3 года назад +3

      You can do better :) ruclips.net/video/-HQrpaveZJo/видео.html

    • @karam09992
      @karam09992 3 года назад

      I remember our VG sir 😀

    • @7636kei
      @7636kei 2 года назад +2

      @@raynalguillaume Of _bloody_ course someone would ping BPRP XD

    • @DeJay7
      @DeJay7 2 года назад

      And then there is BPRP

  • @msjche
    @msjche 3 года назад +45

    New favorite channel. 43 yr old engineer business owner. Can't wait to introduce my kids to this content. Bravo

  • @neilprabhu629
    @neilprabhu629 3 года назад +50

    19:00 it’s because of the nature of ordering the numbers from left to right: there are 5 low cards and so if there are x low cards in one pile there will be 5 - x low cards in the other pile. Since the cards are ordered from left to right a low card can never be opposite a low card and in turn a high card can never be opposite another high card.

    • @EtoileLion
      @EtoileLion 3 года назад +9

      Another way to think about it:
      Assume you had 10-6 as one of your pairs.
      10 is the highest card; there can be no card higher. It's in player A's hand.
      in order for it to line up with the 6, the 6 must be the lowest card in player B's hand. (because the highest card in player A's hand matches with the lowest card in player B's hand)
      What 4 cards can be higher than the 6? 7,8,9,10.
      But we already used 10; so this is an impossibility. There are not 4 cards higher than the 6 left to fill out the other player's hand.

    • @ianrobinson8518
      @ianrobinson8518 11 месяцев назад

      @@EtoileLionYour explanation is correct of course. It’s an important point that is missed in the video. However it doesn’t strictly prove that if it’s true for 10, it’s also true for 9 then 8 etc. Perhaps a form of inductive reasoning is necessary.
      That aside, without affecting the result, the two players could vertically swap their highs for lows so one has all highs and the other all lows. Then the H-L formulation is obvious.
      BTW I’m not sure it’s possible to prove it’s true by strictly algebraic means. I suspect not.

  • @iulianionescu
    @iulianionescu 3 года назад +22

    I've never seen anyone so happy about math and about calculations making sense. Great job!!

    • @johannes.kielmann
      @johannes.kielmann 3 года назад

      To me it feels like he's competing with Matt Parker from Stand-up Maths on that matter. :D
      I can only agree though, it's done really well.

  • @arynstack264
    @arynstack264 3 года назад +110

    I did this with my class, then I had them take away the 9 and 10 and try it again with 8 cards, then again with 6 cards to see if they understood that they got square root answers...25, 16, 9!

  • @smritiii7697
    @smritiii7697 3 года назад +44

    I found your channel recently and I've never been taught math this way. You are beyond amazing and your enthusiasm makes it worth it.

  • @Talksick_Aditi
    @Talksick_Aditi Год назад +1

    The world really needs more teachers like you sir. Being a math enthusiast, I love watching everything you teach and explain. Its about the cheerfulness and passion for the subject and the way you teach. Math is really beautiful. We just need someone like you to show us that beauty. Hats off!!!!

  • @aperson2020
    @aperson2020 3 года назад +16

    I love math, i love that Eddie loves math, i love Eddie for making math fun. Thanks Eddie.

  • @sciab3674
    @sciab3674 3 года назад +2

    Like you Eddie, always smile and relaxing. Good personality.

  • @saikumaryerubandi4445
    @saikumaryerubandi4445 3 года назад +5

    Please keep doing the excellent work you always do Eddie. Keep encouraging kids to Math. Thank you

  • @nockynock4840
    @nockynock4840 2 года назад +2

    Thank you so much for this demonstration Eddie. I am a computer science lecturer and I used this 'trick' to highlight the importance of pattern recognition; one of the four key characteristics of computational thinking. My students were laser focused and engaged and loved it!

  • @tannerboos2268
    @tannerboos2268 3 года назад +59

    This can be generalized as well. If you have a set of the first 2n numbers broken into two random groups of n numbers and paired off in this way then the differences sum to n^2

  • @smar3167
    @smar3167 2 года назад +1

    Eddie is a mathemagician!

  • @titaniumdiveknife
    @titaniumdiveknife 3 года назад +1

    Yes, beautiful patterns. Very beautiful. Thank you Mr. Woo

  • @AdminGeneral-u5n
    @AdminGeneral-u5n 8 месяцев назад

    Great fun !
    An other way will be to look at the 5 vertical columns. Where we have 10 the addition of the 3 cards will give 20 where is 9 will give 18 , 8-16, 7-14, 6-12

  • @nicholasogburn7746
    @nicholasogburn7746 Год назад

    He knows that that shuffle is a wash.
    This guy has wrecked home games.

  • @writetospreadvision
    @writetospreadvision 2 года назад +4

    I really want this kind of teaching in my country, although I am a commerce student, but still our education needs to be interesting like sir showed today....
    Literally Sir, Instead of choosing celebrities, I would choose you as my role model
    Regards
    A Proud Indian & Your Subscriber.

  • @periodictable1184
    @periodictable1184 11 месяцев назад

    I love you sir. You are my most favourite mathematics teacher.

  • @Alvin864-wy9ol
    @Alvin864-wy9ol 8 месяцев назад +1

    he is very smart

  • @karanmudaliar133
    @karanmudaliar133 3 года назад +3

    This improved my mood a lot. Thanks for sharing this video.

  • @rtxensueur1186
    @rtxensueur1186 2 года назад

    Thanks mr.woo you're m'y light in math

  • @kawaiiV75
    @kawaiiV75 2 года назад +5

    3:48 Loneliness just hits different 🥲

  • @sharadkapkar3689
    @sharadkapkar3689 3 года назад +1

    Sir you are one of the greatest teacher I have ever seen

  • @GlouriusGamer123
    @GlouriusGamer123 2 года назад

    OMG!!! I NEED THIS TEACHER!! he is absolutely the BEST! :3

  • @someone8615
    @someone8615 Год назад +1

    I wish that i have Eddie as a teacher when i was younger bro💕💕

  • @peika8324
    @peika8324 Год назад +1

    Man I wish I discovered you much much earlier, still is better late than never

  • @p.janset8594
    @p.janset8594 3 года назад +1

    I love math ever since I've discovered your love, excitement to math

  • @may7680
    @may7680 3 года назад

    Eddie, you are living legend!

  • @darkblader572
    @darkblader572 2 года назад

    I love your videos. THANK YOU for making maths so fun for me.

  • @thenuggywuggy8389
    @thenuggywuggy8389 2 года назад

    It’s always nice to see self working tricks in action since most of them are based on math

  • @scritch9549
    @scritch9549 2 года назад

    I love this guy!

  • @RalphEllis
    @RalphEllis 3 года назад +4

    More interestingly, playing cards represent the Cosmos.
    4 suits = 4 seasons
    13 cards per suit = 13 lunar months in year
    52 cards in total = 52 weeks in year
    364 total all spots = 364 days in year
    Plus the Joker representing the odd 1 or 1.25
    …thus equalling 365.25 days in a year
    This is the reason cards were esoteric and mystical.
    Ralph.

  • @liss35
    @liss35 2 года назад +1

    Really admire your knowledge in Mathematics, and the way you teach, thank you for informative video you just made Mathematics fun to learn. You are like my favorite Prof Roger Antonsen. May God bless you Prof Eddie Woo☺️

  • @johnryder1713
    @johnryder1713 3 года назад +5

    Well I knew he was a magician in the classroom, I never expected him to start doing card tricks!

  • @anujpalve8524
    @anujpalve8524 3 месяца назад +1

    in india many tutorial like bakliwal use this for entrace exam luckily i found good video and did well in exam

  • @tonyanderson5123
    @tonyanderson5123 2 года назад +1

    I wish he would do videos on the concepts behind Fourier and Laplace transforms!

  • @Ryosuke0_0
    @Ryosuke0_0 3 года назад +4

    Beautiful and fun yet so simple thank you for this video :)

  • @developerpranav
    @developerpranav 2 года назад

    This was a very awesome video, he explained the logic behind this trick so well :D

  • @hansm566
    @hansm566 2 года назад

    Numberphile did the same trick. Still fun to watch

  • @cuebal
    @cuebal 3 года назад +1

    You are a very good teacher

  • @Brimstone-Gaming
    @Brimstone-Gaming 2 года назад

    my favorite math card trick involves 21 cards where I can guess anyone cards no matter if it is the first, last or a middle anywhere card. by the third move, I already know their card before finishing the trick. i can then just move cards around into multiple piles and by the end, I have their card left that they had chosen. it's called either 21 Cards or Magical 13

  • @centimeter1000
    @centimeter1000 3 года назад +1

    Wow, it's so amazing.

  • @Felix-rw6bk
    @Felix-rw6bk 2 года назад

    I hope and wish my comments are not offensive to anyone, but I hope God continues to illuminate Eddie woo's beautiful mathematical brain to help him find the answers to the many issues affecting our world. You are very inspirational and an example for others to follow.

  • @danieljobin9408
    @danieljobin9408 3 года назад

    you are math crazy! I love it.

  • @AppyKumari
    @AppyKumari Год назад

    OMG!!!!! I love this. Thank you ❤❤❤❤❤

  • @kelvincheng5620
    @kelvincheng5620 3 года назад +4

    It will be so great and meaningful to be Eddie’s student😍🔥

  • @xavier9577
    @xavier9577 3 года назад

    19:00 that is because he said in the beginning to arrange the cards in ascending order left to right and same for opposite in perspective.

  • @PaulSinnema
    @PaulSinnema Год назад

    Taking the low from the high must be physiological because there is no rule that you should do that. But anyway, love your enthusiasm explaining things to me. Thank you Eddie.

  • @sabbirhasan2258
    @sabbirhasan2258 Год назад

    Mind blowing!

  • @ryuzaki_ray
    @ryuzaki_ray 3 года назад +5

    Before I’m a magician, now Im a mathematician. Thanks to you!

    • @clarkeugene5727
      @clarkeugene5727 2 года назад +1

      So true, same here. Now I can have them count down to 25 in the 3 deck and have that number in the envelope.

  • @Orwic1
    @Orwic1 2 года назад +2

    A great presentation. I’m sure students would enjoy learning maths with Eddie - he’s really enthusiastic and explains things so clearly. I’m a scientist, so need to know some maths (especially statistics), but I feel it would be good for me to brush up my maths knowledge by attending his classes!

  • @chayanmaitra4150
    @chayanmaitra4150 3 года назад +2

    The way you explain is superb... ❤️❤️❤️❤️❤️ I just loved it ❤️

  • @anniegraham7911
    @anniegraham7911 2 года назад

    We were at Chatham High and I was from Cundletown Public

  • @vishnubabu6149
    @vishnubabu6149 3 года назад

    We need more videos like this.😘

  • @anonakkor9503
    @anonakkor9503 3 года назад +1

    Math & magic 2 things I love ❤️

  • @bootehbertha933
    @bootehbertha933 2 года назад

    New to the channel mad respect for the work you are doing here.!

  • @mikemiller9165
    @mikemiller9165 2 года назад

    Eddie, Great presentation! I am a magician who loves mathemagic but who struggles trying to make it fun for audiences. Your style is great!

  • @akkemik
    @akkemik 3 года назад

    i wished you have been my math teacher. Thank you

  • @mamoonaanwar2156
    @mamoonaanwar2156 2 месяца назад

    Assalam O Alaikum! Sir that was amazing, that was great. I didn't expect that the mathematics could be used in cards. Thankyou.

  • @BenjaminRayner
    @BenjaminRayner 3 года назад

    More please 🤯🤓 looks like the building blocks to those bigger prediction tricks that are all too common now

  • @conamore7887
    @conamore7887 3 года назад

    WOW! Incredible hidden patterns

  • @eliasmuga1609
    @eliasmuga1609 3 года назад +1

    BEATIFUL CHANNEL RUclips MATHEMATICS... BEATIFUL..

  • @mnagapavankumar5870
    @mnagapavankumar5870 3 года назад +1

    High - low because we are arranging in ascending order on each side

  • @dontang6906
    @dontang6906 2 года назад

    He looks like he uses 5 chopsticks to eat instead of a pair.

  • @PixelPerfectBlade
    @PixelPerfectBlade 3 года назад

    I love this kind of videos !

  • @jayjaycaguioa8209
    @jayjaycaguioa8209 3 года назад +1

    The rearranging of the cards to ascending order from low to highest is the key on this one, or else this thing ain't gonna work. Still a great vid Eddie 🍻

  • @chlupl
    @chlupl 2 года назад

    Cards 1-8 would always come to 16, 1-6 would be 9, 1-4 would be 4 and 1-12 would be 36. You can quickly find the outcome with o=(h/2)² where o is the outcome and h is the highest number in the range. This does require that the range is consecutive, starts with 1 and ends with an even number.

  • @samm6473
    @samm6473 2 года назад

    the second time you layed out the cards you put down the exact same thing i had

  • @shadowwalker4633
    @shadowwalker4633 2 года назад

    It will always work and will be the square of the number of cards each one has and it works only in the reverse order ,if we put them on same order there will be different values all over with the lowest being 5 and the highest 25 when all cards would be high up and low down.Math will always work when there are preset conditions but if we would just shuffle a deck and try to grab anything by chance it will never work cuz there is no algorithm like in the rubix cube even if we know the whole deck the number of cards from the shuffle will change cuz the switching doesnt work on order it always can go back or forth.

  • @operamini3635
    @operamini3635 3 года назад

    And thank you so much for this video.

  • @nayabtahir6393
    @nayabtahir6393 3 года назад

    I figured it out before your explanation...

  • @particleonazock2246
    @particleonazock2246 3 года назад +2

    Hey! We need some brown paper! In the spirit of Numberphile, of course.

  • @hedgedoge5562
    @hedgedoge5562 3 года назад +2

    Here before this blows up!

  • @customan10
    @customan10 3 года назад +1

    Hi Eddie, a humble idea: try to lower the Gain on your mic channel to get rid of the overdrive on it.

  • @rafiulislamatanu147
    @rafiulislamatanu147 3 года назад

    Just wow!!!

  • @math_the_why_behind
    @math_the_why_behind 3 года назад

    Excited to watch this video!

  • @xed_i2070
    @xed_i2070 2 года назад

    Just by hearing him explaining this you know he's a teacher. Methodical.

  • @aimankuaci
    @aimankuaci 3 года назад

    you make it looks so easy !

  • @aboozarhoseini
    @aboozarhoseini 2 года назад

    Very good, thank you master

  • @raginibargaway2067
    @raginibargaway2067 3 года назад

    Amazing

  • @ShashankBhavaraju
    @ShashankBhavaraju 3 года назад +1

    Big fan...

  • @RockaByeYT
    @RockaByeYT 2 года назад

    I'd like to see an episode about applied math on physical training sometime :D

  • @Fexxwer
    @Fexxwer Год назад

    at 10:16 I just think about number > 5 will subtract to number from 1-5 so it make me have another way ò think about math so cool :>

  • @antonanton3136
    @antonanton3136 3 года назад

    ohnestly you're just the best

  • @JCResDoc94
    @JCResDoc94 3 года назад +1

    *just like tha FED from wanda vision of the same name!*

  • @trungnguyen-xuan7942
    @trungnguyen-xuan7942 3 года назад

    So good!! Definitely will try this with my class. Thanks a lot, stay safe

  • @powderedphantom5765
    @powderedphantom5765 2 года назад

    I wish I was half as good at maths as him

  • @misssiddle5023
    @misssiddle5023 3 года назад

    Beginnings of algebra. You could do this with infants.

  • @MarckCat
    @MarckCat 3 года назад +2

    You should explain some magic card tricks (David Copperfield). He has some cool tricks easy to explain with mathematics

  • @emanuelecerri8806
    @emanuelecerri8806 3 года назад +1

    So the fact that your first attempt gave palindromic red in the middle was just a coincidence?

  • @chetanchavan5368
    @chetanchavan5368 3 года назад

    ತುಂಬ ಖುಷಿ ಕೊಟ್ಟಿತು ಸರ್🙏🙏👍

  • @ΝΕΟΣΛΟΓΑΡΙΑΣΜΟΣ-ζ8χ

    PERFECT

  • @mr.misbah7577
    @mr.misbah7577 3 года назад

    Amazing!

  • @eshtiaqueahmedfuad3810
    @eshtiaqueahmedfuad3810 3 года назад

    Respect

  • @nathanielcah7039
    @nathanielcah7039 3 года назад

    Awesome, very interesting

  • @codewithdevhindi9937
    @codewithdevhindi9937 2 года назад

    19:8 because of the ascending descending order

  • @expertcom-zv3st
    @expertcom-zv3st 3 года назад

    If we go right to left then diffrence will be always in even number and equal. It can be wrong