Lagrange Multipliers Maximize f(x,y) = 2x + 2xy + y subject to 2x + y = 100

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  • เผยแพร่เมื่อ 12 ส.ค. 2019
  • Lagrange Multipliers Maximize f(x,y) = 2x + 2xy + y subject to 2x + y = 100

ความคิดเห็น • 33

  • @cosmicgaussian1881
    @cosmicgaussian1881 3 ปีที่แล้ว +6

    Showed this to a Thermal and Statistical Physics student today so they could understand an entropy problem and it was extremely helpful to them!

  • @santiagoreyes9440
    @santiagoreyes9440 3 ปีที่แล้ว +8

    Omg you dont know but you did all my homework, love you

  • @meeraanil382
    @meeraanil382 2 ปีที่แล้ว

    You are a life saver !❤

  • @s.a.k.57
    @s.a.k.57 ปีที่แล้ว

    Thanks man you have cleared my concept!

  • @y0z64_codes
    @y0z64_codes ปีที่แล้ว +1

    In a CS program, rn and optimization is killing me. But your video is very well explained!

  • @michaelwozniak6
    @michaelwozniak6 3 ปีที่แล้ว +4

    This was very helpful, thank you.

  • @aashsyed1277
    @aashsyed1277 2 ปีที่แล้ว

    Best tutor in the world!!!

  • @zamanmakan2729
    @zamanmakan2729 2 ปีที่แล้ว

    Thank you so much, quite helpful! But just confused about sth: many videos talk about gradient to be perpendicular to the contoure line sth like that, I don't understand that well. Any details?

  • @danielvillamar8603
    @danielvillamar8603 3 ปีที่แล้ว +1

    Thank you man, i love you

  • @SV_GAMING15
    @SV_GAMING15 3 ปีที่แล้ว +1

    Thank u

  • @duckymomo7935
    @duckymomo7935 4 ปีที่แล้ว +3

    Great video; I really need/want to practice Lagrange multipliers

  • @chakombaphirijr2984
    @chakombaphirijr2984 2 ปีที่แล้ว

    Helpful video, I want to ask what happens if the 2x in the maximization function was 2x squared

  • @hongnhonphanang5306
    @hongnhonphanang5306 3 ปีที่แล้ว

    thank you

  • @GAROU0555
    @GAROU0555 ปีที่แล้ว +1

    Thank you sir for information

  • @josearchiealcos1055
    @josearchiealcos1055 4 ปีที่แล้ว +2

    thanks a bunch

  • @antonmsk3401
    @antonmsk3401 ปีที่แล้ว +1

    This is bang tidy!

  • @itsleomarx
    @itsleomarx ปีที่แล้ว +1

    How do you know if you’re maximizing or minimizing?

  • @rssl5500
    @rssl5500 3 ปีที่แล้ว

    Hello I think it’s 2600
    Now my method: suppose a+b=n we want max(ab) suppose a=n/2 +R And b=n/2 - R and R is any real number it can even be negative now the multiplication gives us n^2/4 - R^2 now we know that R^2 is greater than or equal to 0 for any real number so -( R^2 ) is gonna be less than or equal to 0 so the best case is when R=0 and the maximum becomes n^2/4 now 2x+y=100 plug in a=2x b=y then we have : a+b=100 we want max ab notice it’s gonna be 2500 and add 100 because of +2x+y so it’s 2600 final answer !

  • @briendamathhatter816
    @briendamathhatter816 3 ปีที่แล้ว +2

    I just speed ran that so fast

    • @TheMathSorcerer
      @TheMathSorcerer  3 ปีที่แล้ว

      I used to do that too, just do problems really fast and do as many as possible. I did it because I thought that if I could do it correct and fast I would do well on the test, and it worked hehe.

    • @briendamathhatter816
      @briendamathhatter816 3 ปีที่แล้ว +1

      @@TheMathSorcerer I forgot to sqrt an answer, but I remembered the +-, looks like I did the rest of this type of problem correct on the exam. So hopefully graders are nice and only take off the one point on the problem.

    • @TheMathSorcerer
      @TheMathSorcerer  3 ปีที่แล้ว

      Nice 👍

    • @TheMathSorcerer
      @TheMathSorcerer  3 ปีที่แล้ว

      It's calc 3 that you are taking ?

    • @briendamathhatter816
      @briendamathhatter816 3 ปีที่แล้ว +1

      @@TheMathSorcerer Calc 3 and Diff. EQ * that's why I pop up on such different videos. I'm also prepping for next semester where I'm going to be taking basic logic and a proof based math course.
      So I'm in my freshman year right now, I was thinking of maybe not doing MAT342 AND MAT300 for my second semester of college while I'm not going to coffee shops . The other classes I was planning on doing those with are PHI103 and Phy121; that just seems like a lot, and I'm really NOT trying to graduate early. I don't crave the title boy genius, I just wanna get good at my craft. I struggle enough balancing Calc and Diff. EQ at the same time as much as I love them. You think I should maybe not go full ham on packing my schedule?

  • @GILFORDSLECTURES
    @GILFORDSLECTURES ปีที่แล้ว

    GREETINGS SIR! THE VIDEO IS GOOD! PLEASE WHICH TEXTBOOK ARE YOU USING?