What is pi? A visual demonstration of what pi is.

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  • čas přidán 19. 06. 2024

Komentáře • 124

  • @TheAdam2877
    @TheAdam2877 Před rokem +5

    I was taught about Pi in school but this is by far the best demonstration to explain it plainly so that people can have a visual aid to better understand it. Thanks, I'm going to show my son this. ; )

  • @hasankader1050
    @hasankader1050 Před 2 lety +25

    When we were at primary school, teacher doesn't explained how does pi value comes 3.14. amazing thanks Luke

  • @barbmccafferty4533
    @barbmccafferty4533 Před 2 lety +10

    If my math teacher explained pi this way I would have "gotten" it immediately. You're amazing.

    • @jamescollier3
      @jamescollier3 Před 2 lety

      just for that circle? or all circles?

    • @barbmccafferty4533
      @barbmccafferty4533 Před 2 lety

      @@jamescollier3 What?

    • @zthehuman7051
      @zthehuman7051 Před 2 lety +1

      @@jamescollier3 it’s a ratio, so yes for all circles.

    • @finnfrosty
      @finnfrosty Před rokem

      @@jamescollier3 all circles because the diametre is always fit into the perimitre 3.14 times try it if u dont believe me

  • @DrRSPMD2010
    @DrRSPMD2010 Před 5 měsíci

    You’re so Amazing !!!
    Thank you sooo much !!! Now I fully understand Pi and will never forget it !!!

  • @Kaido1412
    @Kaido1412 Před 2 lety +11

    When I finished watching this video, it was 3:14 am. Kinda freaks me out a bit, but also realized I should go to bed. lol

    • @JVerde853
      @JVerde853 Před 2 lety

      For me it was 19:47, which if you take the ln of, you get 2.97 which is basically 3, aka basically pi

    • @herbie_the_hillbillie_goat
      @herbie_the_hillbillie_goat Před 2 lety

      @@JVerde853 That's freaky. 😁

  • @umami0247
    @umami0247 Před 2 lety +2

    Nice work never got into math I just am terrible at it so never learned this. Often wondered why it was this number well now I know.

  • @nagesh007
    @nagesh007 Před 2 lety

    Awesome 😍

  • @davidulsalla6002
    @davidulsalla6002 Před 2 lety

    Yeah.good explanation

  • @anishsingh6703
    @anishsingh6703 Před 2 lety +7

    Great Salute to The LEGEND and GENIUS of All Time :- ARYABHATA , Who had Given the First Accurate Value of Pie And Many Things in His Life and Can't be Compared to Anyone . Thankyou .

    • @sycration
      @sycration Před 2 lety +2

      So much of Indian mathematics, especially the Kerala school, is greatly under appreciated in the western world. To venerate Kepler and Newton but not Aryabhata and Madhava is to deny history.

    • @anishsingh6703
      @anishsingh6703 Před 2 lety

      @@sycration Please Sorry Brother but kya aap isko thoda sa Hinglish me likh ke Bhej sakte hai kyuki aapka comment mujhe acche se samajh nahi aa paa raha hai . Again sorry for that but please write it again in Hinglish .

    • @anishsingh6703
      @anishsingh6703 Před 2 lety

      @@sycration Purane Time ke Mathematicians me ARYABHATA hi Pure WORLD me Jaane Jaate hai . _Specially UNESCO Ne ARYABHATA ke Yaad aur Sammaan ke liye Har Saal Celebrate karta hai Unki Inventions ki Pure WORLD me_ . He is the Father of Mathematics . Kyuki Aur Sab Mathematicians and Scientists ne to Unhi ke Kaam ko aage badhaya aur naye naye Inventions and Discoveries hue . UNESCO Said That - ARYABHATA Mind is Really Can't Comparable with any Other Mathematicians and Scientists . He is Legend and Genius of all Time in The World Who can Never be Forgotten . Said By UNESCO . _Go and Search if you Can't Believe_ . Thankyou .

    • @sycration
      @sycration Před 2 lety +3

      @@anishsingh6703 sadly I do not speak Hindi so I use a machine translator. Hopefully this makes sense
      maiM mazIna anuvAdaka kA upayoga kara rahA hUM kyoMki mujhe hiMdI nahIM AtI hai| maiMne kahA ki nyUTana aura yUkliDa kI prazaMsA karanA galata hai lekina mAdhava aura AryabhaTTa kI prazaMsA karanA nahIM| prAcIna kAla ke pratibhAzAlI bhAratIya vaijJAnikoM kI upekSA karanA itihAsa ko nakAranA hai|

    • @idrisShiningTimes
      @idrisShiningTimes Před 2 lety +2

      I'd not like to start any political discussion related to history here. But I do infact agree Indian mathematicians are underrated. Aryabhatta did find some decimal places of pi. But Newton on the other hand, used and manipulated the Binomial Theorem to find pi till any decimal places desired. I'm saying Newton's contribution and other mathematicians' contributions too do matter here and are equally on the level Aryabhatta was.
      मैं यहां इतिहास से संबंधित किसी भी राजनीतिक चर्चा को शुरू नहीं करना चाहूंगा। लेकिन मैं वास्तव में सहमत हूं कि भारतीय गणितज्ञों को कम आंका जाता है। आर्यभट्ट को पाई के कुछ दशमलव स्थान मिले। लेकिन दूसरी ओर, न्यूटन ने किसी भी दशमलव स्थानों तक वांछित होने तक पाई को खोजने के लिए द्विपद प्रमेय का उपयोग और हेरफेर किया। मैं कह रहा हूं कि न्यूटन का योगदान और अन्य गणितज्ञों का योगदान भी यहां मायने रखता है और समान रूप से आर्यभट्ट के स्तर पर हैं।

  • @zaroonahmar5558
    @zaroonahmar5558 Před 2 lety

    Help a lot,,, thanks

  • @yaaro_naan8626
    @yaaro_naan8626 Před 2 lety

    Wow 👍 nice

  • @stevekerp1
    @stevekerp1 Před 2 lety +14

    Did well with the "3" part but the remainder doesn't look like ".14" at all.

    • @paulg444
      @paulg444 Před 2 lety +4

      yeah, he definitely pulled the string much tighter when he did the diameters than when he made the circumference. That was about .25 left over.

    • @creamu2roblox
      @creamu2roblox Před 2 lety +2

      Close enough

    • @javidelgado5
      @javidelgado5 Před 2 lety

      @@jovmml its .14 of all three strings

    • @noonegotnojams1018
      @noonegotnojams1018 Před 2 lety

      It's an approximation which is much close to 3.14

    • @robertveith6383
      @robertveith6383 Před 2 měsíci

      ​@@creamu2roblox -- No, it's *not* "close enough!" The percent error is too big with the way he did it.

  • @venkatbabu1722
    @venkatbabu1722 Před 2 lety +12

    Pi is a multiplicity of surfaces. That's why it seems to go on forever.

    • @peace7784
      @peace7784 Před 2 lety +8

      it doesn't seem to, it actualy does

  • @asriel522
    @asriel522 Před 2 lety +4

    Wait .......isn't π the integral of e to the -x² from negative infinity to positive infinity squared?

    • @noonegotnojams1018
      @noonegotnojams1018 Před 2 lety

      It is

    • @shueb123
      @shueb123 Před rokem

      He is just explaining from simplicity perspective or the basic of it ,,,you have gone too far to some other expressions of pi

  • @pi4313
    @pi4313 Před 2 lety +6

    This was my true calling

  • @tumak1
    @tumak1 Před 2 lety +1

    ...INTERESTING PRESENTATION. But the string remainder should be one-tenthish of the unit lengths. That was not the case in the video. But the strategy was sound. Cheers

  • @LaylaD5150
    @LaylaD5150 Před 2 lety +1

    Dope 👍

  • @Xayuap
    @Xayuap Před 2 lety +2

    when they say technically
    I don't know if they want to say theoretically o practically

  • @ThisReckless
    @ThisReckless Před 2 lety +2

    If you complete the circumference with all the string and there is no gap, Then why does it matter how many radiuses you fit around the circumference of a circle?
    If you enclose the circle then who cares what the ratio of radiuses to circumference is.

    • @zgp8850
      @zgp8850 Před 2 lety +2

      Essentially, it's because this ratio allows you to compute the area or perimeter of any circle. If you know radius or diameter, you can know the perimeter of the circle.

    • @justmehere_
      @justmehere_ Před rokem

      it's also a special value that has many applications other than finding circumference or diameter, mainly related to curves and angles.

  • @sedmirnel7764
    @sedmirnel7764 Před rokem +2

    We all know that pi is irrational.
    *Then why its definition is a ratio?*

    • @justmehere_
      @justmehere_ Před rokem +3

      because one of those values in the ratio is always itself irrational. Rational numbers are expressed as a ratio of two _integers_

  • @audbay2990
    @audbay2990 Před 4 lety

    Ya

  • @wilsonzhang8715
    @wilsonzhang8715 Před 2 lety +1

    then why is half a circle one pi?

    • @paulg444
      @paulg444 Před 2 lety +1

      @Channel Good Stuff because for angles by convention we normalize by radius R which is 1/2 the diameter. C/ R = 2pi

    • @jaredgoede2681
      @jaredgoede2681 Před 2 lety +4

      Thanks for an interesting question. This video shows that the circumference of a circle comes from the diameter going around the perimeter 3.14 times (or pi). They used an equation of pi = c/d: another way to say this is D x Pi = C or a full circle.
      Half a circle would only use have the diameter or one radius (2 radius make a diameter)
      Diameter=D
      Radius= R
      Circumference =C
      Pi= 3.14........
      Full Circle. (D x Pi = C) or (R + R x P=Ci) or (2 x R x 3.14)
      Half a circle (D/2 x Pi) or (R x Pi)
      To learn more check out this video
      czcams.com/video/cC0fZ_lkFpQ/video.html

  • @appalanaiduannepu9845
    @appalanaiduannepu9845 Před rokem +2

    WITH PRACTICAL; STUDENTS CAN EASILY UNDERSTAND. THANK YOU

  • @YuiAnine
    @YuiAnine Před rokem

    hold the phone, this is 7th grade stuff? And is meant to be used BEFORE algebra?? ive learned algebra before Pi in 8th grade.

  • @wagglebutt
    @wagglebutt Před 2 lety

    Looks more like 3.3

  • @Ibrahimnada1995
    @Ibrahimnada1995 Před 2 lety +3

    I'm disappointed with my self , took me 26 years of living ,eating,shitting,sleeping to ask my self this question on 1:33 AM (what is PI why is it 3.14)

  • @EDM_BOY
    @EDM_BOY Před 10 měsíci

    It's cause we're living in a simulation 😅

  • @albertobernado4103
    @albertobernado4103 Před 2 lety

    math says "infinite", reality says "finite". Wt.... ???

    • @justmehere_
      @justmehere_ Před rokem

      pi does not equal infinity, it just has infinite digits

  • @slyfly4829
    @slyfly4829 Před 2 lety

    The reason why we cannot solve pi is because a circle isn't 2 dimensional, it's actually 3.

    • @kallianpublico7517
      @kallianpublico7517 Před 2 lety +1

      There may be a deeper solution to pi that involves "dimension". There may be a simpler explanation. I don't know. One thing that puzzles me is the meaning of pi. Is it really just a number? I dont think so.
      In language meaning either explains or describes. Pi is a very strange number. I think it's strangeness is due to missing meaning.
      Another way to look at pi is as an operator. An operator that, when applied to any line, gives a special kind of curve. A number that turns one shape into another. Is there an operator that turns lines into triangles? Squares? Toruses? Hyperbolas? If we could find those operators maybe they'd shed more light on what pi is.

    • @jeffthevomitguy1178
      @jeffthevomitguy1178 Před 2 lety

      @@kallianpublico7517. The secant if the inverse cosine can turn a point into a line. And the cosine of the inverse secant turns that pine back into a point.

    • @kallianpublico7517
      @kallianpublico7517 Před 2 lety

      @@jeffthevomitguy1178 How? How do you operate on points? By multiplication, exponents? What is the meaning or solution to any number operating on a point. As an example what is 3 times a circle or square? 3 circles, 3 squares?
      Cosines and secants have geometric meaning in 2 dimensions. Points are 1 dimensional. Points have no "shape". Even though we think of a line as a shape, what its made of (points) isn't a shape. One point doesn't make a line, but two points joined together do? How? How are they joined?
      Lines joined by angles give 🔺️, squares ⬛️, and polygons. How are points joined to make lines? By knots 🪢? Can we even have a visual reference?
      Atoms are joined together by the bonding of the outermost shells of electrons. Protons and neutrons are joined together by the strong nuclear force. Are points joined together by nuclear forces? Chemical geometry: shapes? What are points made of?
      The truth of the matter is either no one knows, or it can be made of anything. That ambiguity is not resolved by invocation of the trigonometric functions.

    • @jeffthevomitguy1178
      @jeffthevomitguy1178 Před 2 lety

      I'm talking about plane projection. This is all with reference to a circle.

    • @kallianpublico7517
      @kallianpublico7517 Před 2 lety

      @@jeffthevomitguy1178 I'm sure it works and makes sense. Does it give you any more insight as to what a point is?

  • @marshalls36
    @marshalls36 Před 2 lety

    Ratio

  • @h.mfahimyounis7420
    @h.mfahimyounis7420 Před 2 lety

    Confusing

  • @dracarysssx
    @dracarysssx Před 2 lety +2

    My teacher didn't tell me about this

  • @luamfernandez6031
    @luamfernandez6031 Před 2 lety

    Irrational numbers don't exist

    • @peace7784
      @peace7784 Před 2 lety +6

      3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989380952572010654858632788659361533818279682303019520353018529689957736225994138912497217752834791315155748572424541506959508295331168617278558890750983817546374649393192550604009277016711390098488240128583616035637076601047101819429555961989467678374494482553797747268471040475346462080466842590694912933136770289891521047521620569660240580381501935112533824300355876402474964732639141992726042699227967823547816360093417216412199245863150302861829745557067498385054945885869269956909272107975093029553211653449872027559602364806654991198818347977535663698074265425278625518184175746728909777727938000816470600161452491921732172147723501414419735685481613611573525521334757418494684385233239073941433345477624168625189835694855620992192221842725502542568876717904946016534668049886272327917860857843838279679766814541009538837863609506800642251252051173929848960841284886269456042419652850222106611863067442786220391949450471237137869609563643719172874677646575739624138908658326459958133904780275900994657640789512694683983525957098258226205224894077267194782684826014769909026401363944374553050682034962524517493996514314298091906592509372216964615157098583874105978859597729754989301617539284681382686838689427741559918559252459539594310499725246808459872736446958486538367362226260991246080512438843904512441365497627807977156914359977001296160894416948685558484063534220722258284886481584560285060168427394522674676788952521385225499546667278239864565961163548862305774564980355936345681743241125150760694794510965960940252288797108931456691368672287489405601015033086179286809208747609178249385890097149096759852613655497818931297848216829989487226588048575640142704775551323796414515237462343645428584447952658678210511413547357395231134271661021359695362314429524849371871101457654035902799344037420073105785390621983874478084784896833214457138687519435064302184531910484810053706146806749192781911979399520614196634287544406437451237181921799983910159195618146751426912397489409071864942319615679452080951465502252316038819301420937621378559566389377870830390697920773467221825625996615014215030680384477345492026054146659252014974428507325186660021324340881907104863317346496514539057962685610055081066587969981635747363840525714591028970641401109712062804390397595156771577004203378699360072305587631763594218731251471205329281918261861258673215791984148488291644706095752706957220917567116722910981690915280173506712748583222871835209353965725121083579151369882091444210067510334671103141267111369908658516398315019701651511685171437657618351556508849099898599823873455283316355076479185358932261854896321329330898570642046752590709154814165498594616371802709819943099244889575712828905923233260972997120844335732654893823911932597463667305836041428138830320382490375898524374417029132765618093773444030707469211201913020330380197621101100449293215160842444859637669838952286847831235526582131449576857262433441893039686426243410773226978028073189154411010446823252716201052652272111660396665573092547110557853763466820653109896526918620564769312570586356620185581007293606598764861179104533488503461136576867532494416680396265797877185560845529654126654085306143444318586769751456614068007002378776591344017127494704205622305389945613140711270004078547332699390814546646458807972708266830634328587856983052358089330657574067954571637752542021149557615814002501262285941302164715509792592309907965473761255176567513575178296664547791745011299614890304639947132962107340437518957359614589019389713111790429782856475032031986915140287080859904801094121472213179476477726224142548545403321571853061422881375850430633217518297986622371721591607716692547487389866549494501146540628433663937900397692656721463853067360965712091807638327166416274888800786925602902284721040317211860820419000422966171196377921337575114959501566049631862947265473642523081770367515906735023507283540567040386743513622224771589150495309844489333096340878076932599397805419341447377441842631298608099888

    • @dpage446
      @dpage446 Před 2 lety +4

      Write a rigorous proof and collect your awards

    • @1earflapping
      @1earflapping Před 2 lety +2

      There used to be (maybe still is) a website that would find your birthday within Pi. It shows/showed just where in the Pi sequence it was, too.

    • @greyngreyer5
      @greyngreyer5 Před 2 lety

      They clearly do. And don't call them irrational. You're past grade school.

    • @herbie_the_hillbillie_goat
      @herbie_the_hillbillie_goat Před 2 lety +1

      @@greyngreyer5 What's wrong with calling them irrational?