Lagrange Interpolating Polynomial - Easy Method

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  • เผยแพร่เมื่อ 12 ม.ค. 2025

ความคิดเห็น • 215

  • @AFMathandEngineering
    @AFMathandEngineering  7 ปีที่แล้ว +14

    Hope you enjoyed the video, let us know if it helped down below in the comments!
    Interest in learning the Newton Interpolating Polynomial? Follow this link: th-cam.com/video/hcsBjizQ9X8/w-d-xo.html

    • @lisi4502
      @lisi4502 3 ปีที่แล้ว +1

      Yes I enjoyed it thank you
      Very helpful.

    • @nezerbtc6936
      @nezerbtc6936 2 ปีที่แล้ว

      what if the value of x is not given in the equation

    • @kizitodettakatantha6236
      @kizitodettakatantha6236 ปีที่แล้ว

      I didn't understand it
      after this video you have made me look stupid lol 😂 😂

  • @muhammadissop7230
    @muhammadissop7230 5 ปีที่แล้ว +23

    watching ur vids during my third year of engineering ur bless

  • @Cif47
    @Cif47 6 ปีที่แล้ว +40

    I understand it for the first go. At my school for some reason didn't know at all.. we got too many formulas and theory. I like the most simple method and demonstation. Thank you for the vid

    • @AFMathandEngineering
      @AFMathandEngineering  6 ปีที่แล้ว +4

      Great, thanks for sharing! We felt the same as you when we learned it at university and wanted to put it in more of a reasonable format rather than extremely confusing formulas and theory. Glad you enjoyed the video!

  • @UsamaKenway
    @UsamaKenway 5 ปีที่แล้ว +105

    You are a genius .
    Btw My exam starts in 1 hour.

    • @AFMathandEngineering
      @AFMathandEngineering  5 ปีที่แล้ว +10

      Haha thanks!
      Hope it goes well!

    • @mahsh701
      @mahsh701 3 ปีที่แล้ว +1

      did you pass the exam ?

    • @edwinchigozie215
      @edwinchigozie215 ปีที่แล้ว

      Good luck Ur gonna need it, 😆😆😆

    • @Kan-on-s5m
      @Kan-on-s5m 2 หลายเดือนก่อน

      Mine starts in 6 hours.

  • @Amir3
    @Amir3 4 ปีที่แล้ว +11

    You are by FAR the best , even million times better than my "Professor Engineer Scientist Doctor" teacher

  • @mrarcticaaa1101
    @mrarcticaaa1101 6 ปีที่แล้ว +24

    this is one of the most underrated channels. You saved me second time this week, thank you so much :D

    • @AFMathandEngineering
      @AFMathandEngineering  6 ปีที่แล้ว +2

      MrArcticaaa thanks again, glad to see you're enjoying the channel!

  • @ashvinpraveen
    @ashvinpraveen 4 ปีที่แล้ว +16

    This had helped so much! I was really struggling with this concept and you made it so easy!! Thank you

  • @kayleerusike5633
    @kayleerusike5633 6 ปีที่แล้ว +18

    Oh my gosh!!! This made it so much simpler. Thank you.

    • @AFMathandEngineering
      @AFMathandEngineering  6 ปีที่แล้ว +1

      Always glad to hear feedback like this, making overly complicated subjects more simple is our goal here! Thanks!

  • @viarobb8988
    @viarobb8988 2 ปีที่แล้ว +6

    Wow, this is so much easier than how I learned it in class! Thank you!!

  • @wekesirken6961
    @wekesirken6961 หลายเดือนก่อน

    100 years later and I find this to be the most helpful of a;; the videos I have checked out

  • @idslw3489
    @idslw3489 21 วันที่ผ่านมา

    Out of all videos on youtube this explains it the best.

  • @JohnKivi66
    @JohnKivi66 4 ปีที่แล้ว +5

    Wow, thank you, now the formula seems SOOOO much clearer!

  • @godfrey769
    @godfrey769 13 วันที่ผ่านมา

    watching this before my CS math 3 final tomorrow, bless you man i was struggling with this

  • @thehappyhippoz3542
    @thehappyhippoz3542 ปีที่แล้ว +1

    I’m taking numerical analysis currently and your channel is a life saver !

  • @fidelmadzidza2182
    @fidelmadzidza2182 4 หลายเดือนก่อน

    Dude you make things so super clear. I love it !!!

  • @Andrew_k_
    @Andrew_k_ 2 ปีที่แล้ว

    I tried to study this method for more than an hour and didn't get it and you just explained it in 8 mins ty so much

  • @mphomajestic8803
    @mphomajestic8803 2 ปีที่แล้ว

    you just simplified my whole entire life in five minutes

  • @mohamed-oh1kt
    @mohamed-oh1kt 5 ปีที่แล้ว +4

    Absolutely insane. Saved my life in 5 mins

  • @chinonsoonyejaka7508
    @chinonsoonyejaka7508 ปีที่แล้ว

    Damn.
    This guy makes big formulas look like basic algebra.
    Thanks man

  • @Strong256
    @Strong256 2 ปีที่แล้ว +1

    Dude you should come and give a lecture to our lecturer. This is so simple! Wow

  • @davidramos8136
    @davidramos8136 ปีที่แล้ว

    This is the most helpful yt video I’ve ever seen

  • @fey0217
    @fey0217 ปีที่แล้ว

    my professor is terrible at explaining this stuff, but i finally understand it now. thank you so much!

  • @muhammadtaqveemahsanpasha4045
    @muhammadtaqveemahsanpasha4045 5 ปีที่แล้ว +2

    You sir, are a hero. I am miserable at maths but this video made Lagrange interpolation look like a piece of cake.
    subscribed!

    • @AFMathandEngineering
      @AFMathandEngineering  5 ปีที่แล้ว +1

      Thanks bud! Anyone can be good at math with enough practice, keep at it!

  • @konradsowik104
    @konradsowik104 4 ปีที่แล้ว

    Thank you . You are the best . I am preparing for the exam . After watching Video i know what i have to do .

  • @jonasmoyo9479
    @jonasmoyo9479 4 ปีที่แล้ว +1

    thanks. This is straight to the point, you don't need to spend hours listening to your lecturer if his like mine 😒

  • @vclucid5921
    @vclucid5921 4 หลายเดือนก่อน

    am seeing posted 5yrs ago,but bless you bro this was so helpful ❤

  • @hasaniereza
    @hasaniereza 4 ปีที่แล้ว +1

    you are a life savior

  • @zohaibdev
    @zohaibdev 5 ปีที่แล้ว +2

    You made it too simple to understand. awesome

  • @goddamnarshia
    @goddamnarshia 3 ปีที่แล้ว

    You saved an entire class sir

  • @mansurshuaib4940
    @mansurshuaib4940 หลายเดือนก่อน

    I really enjoyed the video I have been thinking how to assimilate the formular but with your explanation I should be able to solve the question with out memorizing formulars
    thank you once again

  • @aaronmcmahoun3552
    @aaronmcmahoun3552 5 ปีที่แล้ว +2

    You're a life saver man!

  • @amaladiguna8873
    @amaladiguna8873 5 ปีที่แล้ว +2

    Genius and also saved my butt from the dreaded pre-finals "this will determine half your score" homework

  • @mogli3leo
    @mogli3leo 5 ปีที่แล้ว +1

    This is pure gold! Thanks a lot!!

  • @osaiasilolohea6107
    @osaiasilolohea6107 4 ปีที่แล้ว +1

    Thanks bro,,, came just to get a brief idea of this before heading to class...

  • @anastasiagavrilita6567
    @anastasiagavrilita6567 4 ปีที่แล้ว +1

    Sir, you're a life saver. Thank you, sir!

  • @spencersteinmetz2994
    @spencersteinmetz2994 5 ปีที่แล้ว +1

    Great job explaining! I found this super helpful as I found using the formulas given was slightly confusing.

    • @AFMathandEngineering
      @AFMathandEngineering  5 ปีที่แล้ว

      For sure, that's why we thought to make this video! Glad it helped!

  • @xfxaisal9983
    @xfxaisal9983 ปีที่แล้ว

    Thanks!

  • @Adam_mohammed_
    @Adam_mohammed_ 2 ปีที่แล้ว

    You have saved my life sir.!🎉

  • @mdmonayemhossain4339
    @mdmonayemhossain4339 3 ปีที่แล้ว

    Very easy explanation you save my life. suuuuuuppppppeeeerrrrrrrr

  • @adrmad8849
    @adrmad8849 2 ปีที่แล้ว

    Cool explanation, as computer-science student I appreciate it!

  • @RazorIance
    @RazorIance 4 ปีที่แล้ว +2

    man that formula mustve been one of the most confusing things ive had to learn in school. thanks

  • @saifshah731
    @saifshah731 5 ปีที่แล้ว +2

    wao man. perfect explanation. Thanks a lot. Kindly make videos like this for other topics too

  • @avhnfq
    @avhnfq 6 ปีที่แล้ว +1

    Thanks, I have a final today, this helped a lot. Subscribed.

  • @barsbulbul1831
    @barsbulbul1831 5 ปีที่แล้ว +2

    I have Linear Algebra & Numerical Methods Final and it's helps me alot.

  • @sneharainaa
    @sneharainaa 6 ปีที่แล้ว +3

    This was really really helpful! Thanks a ton!

  • @stephaniestampher6981
    @stephaniestampher6981 6 ปีที่แล้ว +2

    Omggggg thank you I have a midterm tomorrow you saved me 🙌

    • @AFMathandEngineering
      @AFMathandEngineering  6 ปีที่แล้ว

      Stephanie Stampher haha excellent, that's what our channel is for! good luck!

  • @isaacaskey1410
    @isaacaskey1410 5 ปีที่แล้ว +1

    Great video, simple and concise!

  • @whatamievendoing
    @whatamievendoing 6 ปีที่แล้ว +1

    Awesome! Super helpful stuff. Thanks for publishing!

  • @AubreyChilambwe
    @AubreyChilambwe 6 หลายเดือนก่อน

    You're a good teacher

  • @arrtemfly
    @arrtemfly 4 ปีที่แล้ว +1

    simple and clear! very nice video, thx!

  • @nahuel3256
    @nahuel3256 6 ปีที่แล้ว +1

    Oh man! you're a star! Thank you very much!

    • @AFMathandEngineering
      @AFMathandEngineering  6 ปีที่แล้ว +1

      Thank you for positive feedback glad you enjoyed the video!

  • @imdanli
    @imdanli 4 ปีที่แล้ว +1

    Thank u so much! I was so stressed by notation teacher gave

  • @thandolwethu3430
    @thandolwethu3430 ปีที่แล้ว

    😂I have my test in an hour and I get this video, the TH-cam algorithm is definitely something.

  • @rahulpatel3734
    @rahulpatel3734 5 ปีที่แล้ว +1

    Thank you so much wow very easy way explain nice video

  • @tisetsosheron7598
    @tisetsosheron7598 2 ปีที่แล้ว

    wow this is so much easier and helpful. thank you

  • @spbe-xg1qp
    @spbe-xg1qp 5 ปีที่แล้ว +1

    Very well explained. Thank you

  • @SSGMarkus
    @SSGMarkus 2 ปีที่แล้ว

    Thank you very much! I need this concept for an investigation I'm doing in grade 12.

  • @BlameHari13
    @BlameHari13 ปีที่แล้ว

    The most simplest videos give the best answer
    -someone

  • @δημητρηςφακιρης-ο3ο
    @δημητρηςφακιρης-ο3ο 2 ปีที่แล้ว

    thanks for the 7 in mathematical analysis !!!

  • @swapstar
    @swapstar ปีที่แล้ว

    I am solving advent of code 2023 and this helped a lot 🙏

  • @emmanuelenemali8238
    @emmanuelenemali8238 ปีที่แล้ว

    Thank you so much Sir. God bless you

  • @FikrachenFikir-qp7gj
    @FikrachenFikir-qp7gj ปีที่แล้ว

    Wow best expression ever thank you sir

  • @anonymous-4220
    @anonymous-4220 2 ปีที่แล้ว

    that what is called perfection, thank you !!

  • @Luke-ub1zs
    @Luke-ub1zs 5 ปีที่แล้ว +1

    Thank you brother you made my day

  • @sumers9396
    @sumers9396 ปีที่แล้ว

    great work!! very helpful!!

  • @AJ-et3vf
    @AJ-et3vf 3 ปีที่แล้ว

    Thank you very much sir. Very helpful!

  • @dogeness
    @dogeness 2 ปีที่แล้ว

    This was so helpful. Now the formula with the sum and Dirac delta function and all that shit actually makes sense

  • @doaaahmed9730
    @doaaahmed9730 3 ปีที่แล้ว

    U made it really easy . Thank u😊

  • @cabinetdoorknob1311
    @cabinetdoorknob1311 ปีที่แล้ว +1

    thank you. so many videos over complicate this. just trying to pass my engineering exam so i can build airplanes not trying to learn math and stuff

  • @athitalkies
    @athitalkies 2 ปีที่แล้ว

    Thank you dr Hasimah

  • @harikrishnan4981
    @harikrishnan4981 4 ปีที่แล้ว +1

    Thank you. Helped a lot

  • @unicorn8533
    @unicorn8533 4 ปีที่แล้ว

    you gotta teach our teachers they just like to complicate easy stuffs thanks a bunch

  • @bigm9676
    @bigm9676 5 ปีที่แล้ว +2

    a beast!!! great example!!

  • @annuparihar5145
    @annuparihar5145 4 ปีที่แล้ว +1

    Amazing 👍 Thank you 🙌

  • @albensmaine3057
    @albensmaine3057 5 ปีที่แล้ว +1

    Thankksss man this was super useful ;)

  • @matyasdittrich1977
    @matyasdittrich1977 3 ปีที่แล้ว

    Thank you ! You just saved me

  • @adhisuess7090
    @adhisuess7090 4 ปีที่แล้ว +2

    hello, thank you, it's clear presentation, but I have question regarding the result, f(2) = -10.2, your range [-2,8] and domain [-2,4], how come f(2) beyond the range? calculation mistake?

    • @MBearr1221
      @MBearr1221 2 ปีที่แล้ว +1

      Edit (Original replay at bottom):
      It actually makes sense if you think about it.
      A standard polynomial, for example y=(x-2)(x-3) is rewritten as y=x²-5x+6. It has an exponent of 2, which graphs as a parabola. For every additional x value we include in the polynomial, the exponent increases.
      The graph of a 3rd degree polynomial follows an S shape. A fourth degree polynomial returns to a parabola shape, and so on.
      Therefore it stands to reason that the graph of an equation with an increasing number of data sets must follow this back and forth pattern.
      If you graph the given data points from the video and attempt to draw a curve through all of the points without making the curve change direction between two points, the curve must extend down at x=0 before turning back upward to reach 8 at x=4
      Original: I was wondering that too, but a quick calculation seems to confirm that he did it correctly

    • @robertveith6383
      @robertveith6383 8 หลายเดือนก่อน

      ​@@MBearr1221-- No, a fourth degree polynomial does not return to a parabolic shape.

  • @direragon6911
    @direragon6911 6 ปีที่แล้ว +1

    Thank you! the real mvp

  • @haseebkhawaja1050
    @haseebkhawaja1050 4 ปีที่แล้ว +1

    You are legend man

  • @muhammadissop7230
    @muhammadissop7230 5 ปีที่แล้ว +2

    only one word "BLESS"

  • @MetallurgyFacts
    @MetallurgyFacts 2 ปีที่แล้ว

    Great video,thanks.

  • @thomasgreen372
    @thomasgreen372 6 ปีที่แล้ว +3

    Hey, Great video . does this apply when they are asking for ..lets say, 1st order through 3rd order?

    • @AFMathandEngineering
      @AFMathandEngineering  6 ปีที่แล้ว +1

      Thanks bud appreciate the positive feedback. Check out matlabs explanation of lagrange polynomials here ( mathworld.wolfram.com/LagrangeInterpolatingPolynomial.html ), but essentially were finding a polynomial of degree n-1. As we increase the number data points, were increasing the degree of the polynomial. I'm not a mathematician though, check the link for a more in depth explanation!

  • @minezgio3175
    @minezgio3175 5 ปีที่แล้ว +1

    Thanks man really helpful video. I wish my instructor had explained stuff in that simple way.

    • @AFMathandEngineering
      @AFMathandEngineering  5 ปีที่แล้ว

      Thanks, glad you enjoyed it! Professors at university/college kind of have to teach the theory behind these concepts and they sometimes neglect how to easily solve the problems..that's where we come in haha! Thanks for the comment.

  • @Jomjom1114
    @Jomjom1114 3 ปีที่แล้ว

    thanks for explaining king

  • @iktisadrashid9769
    @iktisadrashid9769 6 ปีที่แล้ว +1

    This was very helpful.

  • @hawaslianas
    @hawaslianas ปีที่แล้ว

    nice simple and clear
    thank your

  • @anonb1150
    @anonb1150 5 ปีที่แล้ว +1

    Thank you so much!

  • @nazria4375
    @nazria4375 ปีที่แล้ว

    Thank you so much ❤

  • @winnerfit8319
    @winnerfit8319 6 ปีที่แล้ว +1

    omg thank you soo simple subscribed

  • @amnahabayed6353
    @amnahabayed6353 4 ปีที่แล้ว +1

    thank you so much

  • @bboygmoney
    @bboygmoney 5 ปีที่แล้ว +1

    What a guy! Thanks!

  • @WhiteAkane37
    @WhiteAkane37 5 ปีที่แล้ว +1

    Thank you! You r my saviour hahaha

  • @rahatullah4232
    @rahatullah4232 8 หลายเดือนก่อน

    Just E.. a.. s.. y .
    Thanks man❤

  • @laincy-zp6lr
    @laincy-zp6lr 27 วันที่ผ่านมา

    ur awesome 😊🥰 thank youuuuu

  • @timbraunton3677
    @timbraunton3677 4 ปีที่แล้ว +1

    my g!!! thank you bruz

  • @emmanuelt.collins1809
    @emmanuelt.collins1809 6 ปีที่แล้ว +1

    omg. This helped me a lot.

  • @socratears
    @socratears 4 ปีที่แล้ว +1

    Thank you thank you thank you!!!!

  • @ΕλισάβετΕλβάνογλου
    @ΕλισάβετΕλβάνογλου 7 ปีที่แล้ว +1

    greetings form greece!! It's a great video , congrats but i have a question. If you have more than 4 xi and you want L3(x) ,which xi are you going to take to make it (with minimum error of course)

    • @AFMathandEngineering
      @AFMathandEngineering  7 ปีที่แล้ว +1

      welcome to the channel, thanks for your feedback! im not quite sure i understand your question, are you asking if you have more (or less data points), how are we going form our function for our curve? youd repeat exactly the same steps as we did here, except youd just have more or less terms depending on how many points you have. i hope that helps!

  • @riyaaditya
    @riyaaditya 4 ปีที่แล้ว +1

    Thank you 🌝

  • @anchovies8646
    @anchovies8646 3 ปีที่แล้ว +1

    Thank you!