Simplex Method, Example 1

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  • เผยแพร่เมื่อ 7 พ.ย. 2024

ความคิดเห็น • 314

  • @franciscadevasconcelos
    @franciscadevasconcelos 3 ปีที่แล้ว +169

    I wish this woman good health, happiness and money, loved the explanation!

  • @r.f2173
    @r.f2173 7 หลายเดือนก่อน +14

    I learned more about how to do this method in 7 minutes and 43 seconds than I did in an hour of hand-wavy lectures. Thank you very much.

    • @cerkal726
      @cerkal726 2 หลายเดือนก่อน

      I never really understand why university lectures can't be this good. They do it as their full-time profession, and they still suck at their job

  • @potatoplays9356
    @potatoplays9356 3 ปีที่แล้ว +162

    This is spectacular! My professor spent hours making this insanely confusing, and you made it sound like a walk in the park!

    • @ridazouga4144
      @ridazouga4144 2 ปีที่แล้ว

      🤣🤣🤣🤣🤣🤣🤣🤣

    • @n-da-bunka2650
      @n-da-bunka2650 2 ปีที่แล้ว +6

      Its a walk in the park once you understand the iteration. Most professors get embroiled in ...lets say other things or trying to sound smarter than is necessary. These are very, very simple equations.

    • @kelseybuley9865
      @kelseybuley9865 2 ปีที่แล้ว +4

      facts, saved me for my final in a few hours💗

    • @anycolouryoulike8567
      @anycolouryoulike8567 2 ปีที่แล้ว +1

      @@kelseybuley9865 how did you do?

    • @scarlettwang2146
      @scarlettwang2146 ปีที่แล้ว +1

      @@n-da-bunka2650 Our professor confuses most students (at least during lecture where we do not have much time to think through) so we have to figure it out online ourselves lol

  • @hElie885
    @hElie885 ปีที่แล้ว +20

    You just made 6 hours worth of lectures into 7 min. Thank you for making me open my eyes!

    • @lyl380
      @lyl380 ปีที่แล้ว

      hey can i ask a quick question'

  • @theshieldhero7062
    @theshieldhero7062 3 หลายเดือนก่อน

    With all due respect, some people do not know how to teach but that lady definitely knows. Straight to the point with the application, no confusions and very clear

  • @dlwlrmae
    @dlwlrmae 3 ปีที่แล้ว +13

    our professor knows absolutely nothing about this and i was very concerned about whether i’d be able to understand this ever. thank you so much, you just saved me!

  • @CliffCarmichael
    @CliffCarmichael 5 ปีที่แล้ว +2

    All these Indian tutor videos of durations ranging from 30mins to above an hour, blabbering on and on about the same old memorized technique without any sort of explanations; and here this video is, just about 8mins and my mind is blown. Thank you very much! Much respect all the way from the land of spices. And turbans.

  • @nofuss7337
    @nofuss7337 3 ปีที่แล้ว +16

    Such a clear explanation!! I suddenly had to sub for a professor for this topic and had to refresh my knowledge on this. I realized I barely retained anything on this topic and the book just left me more confused. This video really helped! Thanks so much Meghan!

  • @lesterawotwe6464
    @lesterawotwe6464 3 ปีที่แล้ว +17

    you just nailed what my lecturer couldn't make me understand clearly for hours in 7:43 mins. Thank you

    • @ridazouga4144
      @ridazouga4144 2 ปีที่แล้ว

      👏👏👏👏👏👏

  • @matejlipovsky1214
    @matejlipovsky1214 2 วันที่ผ่านมา

    9 years later and you are still a life saver madam

  • @oliverclennett6915
    @oliverclennett6915 3 ปีที่แล้ว +6

    Far more in depth and thorough explanation than my teacher on my course. Thank you.

  • @Nuobu-p7k
    @Nuobu-p7k 7 หลายเดือนก่อน +2

    the thing i m gonna say may not be relative to the course. ur voice is close to my grandma, it s soft and warm, i never thought i can hear it on youtube. thanks

  • @nexovec
    @nexovec ปีที่แล้ว +11

    This is an extremely clear explanation, but there is a MISTAKE at 6:25 where you mistakenly divided by 3 instead of 4, getting 20/51 instead of 20/68=5/17. It seems spectacular to me that half a million people watched this video and not a single one bothered to check, so I might be wrong, please point out my mistake if that's the case.

    • @IceCream_Racing
      @IceCream_Racing 11 หลายเดือนก่อน +2

      I noticed this aswell but wasn't sure cuz no one else said anything about it, thanks

    • @cedocedd8108
      @cedocedd8108 11 หลายเดือนก่อน +1

      Thank you man, You're a life saver. I have been wondering, where I was going wrong.

    • @nexovec
      @nexovec 11 หลายเดือนก่อน +1

      @@cedocedd8108 It's kind of crazy how noone out of so many people noticed

    • @cedocedd8108
      @cedocedd8108 11 หลายเดือนก่อน +2

      @@nexovec I had to recheck my workings twice.

    • @II_Emilia_II
      @II_Emilia_II 2 หลายเดือนก่อน

      Glad I wasn’t the only one that noticed it :) thanks for the clarification

  • @theplunkinator
    @theplunkinator 4 ปีที่แล้ว +12

    I wanted to thank you for explaining this, I was really struggling with this and my teacher and her notes were basically worthless. Your explanation was clear and concise and I appreciate you.

    • @cswalker21
      @cswalker21 4 ปีที่แล้ว +1

      Same here. I think we need to send Ms. De Witt on tour and have her stand in for every teacher on the day they explain this, LOL.

  • @africanakhumalo941
    @africanakhumalo941 2 ปีที่แล้ว +1

    I Don't even know how to express my gratitude....really appreciate your explanation

  • @davenorton4768
    @davenorton4768 3 ปีที่แล้ว +2

    Thanks 👍👍☺️ i dont know why the lectures makes it more complicated and always TH-cam saved us 🔥

  • @sweetmintkiss
    @sweetmintkiss 2 ปีที่แล้ว

    Thank you so much! God bless! Why other professors get so lazy and uable to explain anything clearly and step by step. Amazing woman and tutor!

  • @Ion_licht
    @Ion_licht ปีที่แล้ว

    This is the first time i understood instead of repeating the method over and over again our professor is really good and he explains great but the method he used to calculate was somehow complex ......and instead of that....i understood the row operations here best just ......thank you ... This'll help me very much tomorrow in exams

  • @learningchannelyoume935
    @learningchannelyoume935 3 ปีที่แล้ว +1

    the way of solving this problem was like royal,i mean straight forward.I love you madam.

  • @guywhoasked903
    @guywhoasked903 2 ปีที่แล้ว

    Learning this before my lecturer teaches us this method during our class this evening. THANK YOU! Gonna help my friends with this knowledge if they become confused during lecture

  • @HalifaxHercules
    @HalifaxHercules หลายเดือนก่อน

    This bring back memories from my Intro to Quantitative Methods One and Operations Research courses when I was a Business student at Saint Mary's University during the mid 1990s.

  • @agentsmidt3209
    @agentsmidt3209 4 ปีที่แล้ว +142

    Forget this. I'll just be a stripper.

    • @Cowboii7
      @Cowboii7 3 ปีที่แล้ว +5

      lmao

    • @Sam-zt8gx
      @Sam-zt8gx 3 ปีที่แล้ว +8

      Was expecting some motivational stuff in the comments....did not disappoint.

    • @jack-g3j8l
      @jack-g3j8l 3 ปีที่แล้ว +4

      Revolutionary... world's first AI stripper

    • @harshvardhanheda7153
      @harshvardhanheda7153 3 ปีที่แล้ว +1

      Made my day

    • @donyalewis7291
      @donyalewis7291 3 ปีที่แล้ว

      😁😁😁

  • @radharman2431
    @radharman2431 3 ปีที่แล้ว +1

    I have an exam in 2 weeks and this never made proper sense to me. Thank you so much!!!

  • @Maen963
    @Maen963 4 ปีที่แล้ว +35

    i dont really know why the hell still traditional universities exist ?! awesome explanation

  • @thecybexlady9311
    @thecybexlady9311 3 ปีที่แล้ว +2

    You are a god! You can explaiin better than my 4th year engineering management course! God bless you from Ottawa, Canada!

    • @HalifaxHercules
      @HalifaxHercules หลายเดือนก่อน

      I did Linear Programming during my Introduction to Quantitative Methods One (Management Science 205) and Operations Research (Management Science 306) courses when I was a Business student at Saint Mary's University during the mid 1990s.
      While my professors, Professor Suzanne Cottreau and Dr. Muhong Wang, taught me Linear Programming very well, watching this video was a refresher for me.

  • @kanzulmahrifamihlar8694
    @kanzulmahrifamihlar8694 2 ปีที่แล้ว

    Thank you very very much.. Recently I'm searching for simple way to solve simplex method and I found this video

  • @joshualiu1976
    @joshualiu1976 6 หลายเดือนก่อน +1

    clearest explanation in nearly 8 minutes! thanks!

  • @lawrenceemuriaekale2838
    @lawrenceemuriaekale2838 2 ปีที่แล้ว

    Be blessed... My lecturer was just copy pasting a pdf without elaborating how....

  • @chigbuchiamaka4852
    @chigbuchiamaka4852 ปีที่แล้ว

    I have watched several videos that were UpTo 30mins and still didn't understand. Before watching your video, I was skeptical because I asked myself I'd i didn't understand in long videos how much then in a short tutorial. But no, I was wrong. Thank you a lot Ma'am.

    • @omegacy_wisdom
      @omegacy_wisdom 6 หลายเดือนก่อน

      Hhhh 😊
      The woman is a genius

  • @dareosoneye6218
    @dareosoneye6218 3 ปีที่แล้ว +3

    You have no idea how much you’ve saved me, Thank you!

  • @garshaspkeyvan5546
    @garshaspkeyvan5546 3 ปีที่แล้ว

    Gold bless your madam, best lecture regarding simplex method.

  • @abishekraju4521
    @abishekraju4521 4 ปีที่แล้ว +1

    Wow. That is so much different from what my teachers taught me here in India. And tbh this seems far more easier, intuitive and useful. IDK why do they have to complicate it so much. Thank you Meghan for sharing this one. I'm gonna subscribe.

  • @leimayara6319
    @leimayara6319 3 ปีที่แล้ว

    this is the clearest explanation i've seen so far.

    • @leimayara6319
      @leimayara6319 3 ปีที่แล้ว

      YOU SAVED MEEE. OMG, THANKS.

  • @yusufhamza7573
    @yusufhamza7573 7 ปีที่แล้ว +4

    guys kindly get knowledge first on simplex methods,get to know what is slacks,surplus.i promise you u wont regret watching this video after having such knowledge, thank you mum you are amazing,,,,your formular is the best,i watched many videos,but this is the best am fun of #wise kauser but actually this is the best video,thanx once again

  • @thomasdemunck4326
    @thomasdemunck4326 2 ปีที่แล้ว +10

    Thanks for the great content! Minor mistake: It should be 20/68 instead of 20/51 and 52/68 instead of 52/51 in the last step.

    • @arhamshah3425
      @arhamshah3425 ปีที่แล้ว +1

      How did I have to scroll this much to find this error reported

    • @cedocedd8108
      @cedocedd8108 6 หลายเดือนก่อน +1

      @@arhamshah3425 Finally, Same here. I've repeated the whole example twice.

  • @BenjaminOnuoha
    @BenjaminOnuoha 11 หลายเดือนก่อน +2

    Ma you’re just too smart and plain,I give you your flowers 😁

  • @sanjeetk7967
    @sanjeetk7967 4 ปีที่แล้ว

    This is the best
    Didnt attend a single class in college and this makes up for it a bit thanks

  • @vincentabarca7
    @vincentabarca7 3 ปีที่แล้ว

    May god bless you with infinite happiness and health. Thank you for helping me with my exam!

  • @febriansantosa5210
    @febriansantosa5210 3 ปีที่แล้ว

    Thank you for your explanation, now I understand how to finish my homework.

  • @lunasmum6869
    @lunasmum6869 4 ปีที่แล้ว +2

    I'm going to have to watch this over and over! I want to revise on the Simplex method I used at university years ago and I now have something I would like to use it for. Just for me, not work! However, I have forgotten the elements of the method. I was a bit lost but as you went on it became clearer but I will need to, as I said, keep watching until the penny drops!!

  • @danialrahmani
    @danialrahmani ปีที่แล้ว

    You are an angel who saved my life

  • @virajmehtavkm
    @virajmehtavkm ปีที่แล้ว

    Ma'am your video made this sum so simple to understand thanks a bunch 🤗

  • @wpxfallen
    @wpxfallen 5 ปีที่แล้ว +4

    thank you, even though i had problems with a slightly different version of the simplex, your explaining was clear enough for me to still be able to learn. im really greateful

  • @stylianosdimas1992
    @stylianosdimas1992 2 ปีที่แล้ว

    God bless you Ms De Witt!! You made it look so easy

  • @cswalker21
    @cswalker21 4 ปีที่แล้ว +1

    Thank you Ms. De Witt; you are quite good at this.

  • @Chih-YuanLu
    @Chih-YuanLu ปีที่แล้ว

    THANKS YOU! IT SAVES MY LINEAR ALGEBRA FINALS TOMORROW.😭

  • @andrewangellomwilawa2298
    @andrewangellomwilawa2298 3 ปีที่แล้ว +2

    Well understand, thanks for the best and simplest explanation.

  • @talu6695
    @talu6695 3 ปีที่แล้ว +17

    I think there a mistake in the last step, when you pick R2 - 1/4 R1, w should be 5/17, not 20/51. Anyway, thanks for your video.

    • @n-da-bunka2650
      @n-da-bunka2650 2 ปีที่แล้ว +1

      it doesn't matter as they become the zero factors

  • @donyalewis7291
    @donyalewis7291 3 ปีที่แล้ว

    Thank you sooooooooooooooooooooooooooooooo much. This is such a big help. You are a life saver Ms De Witt!!!

  • @noone-md2bt
    @noone-md2bt ปีที่แล้ว +1

    I really love you from the bottom of my heart , thank u sooooo much

  • @faelcavalcanti
    @faelcavalcanti 3 ปีที่แล้ว +10

    there's one more thing ... in the last table, last line and in the fourth column, the value should be 13/17

  • @hermosa8916
    @hermosa8916 ปีที่แล้ว

    Best explanation ever. Thank You

  • @genevieved4261
    @genevieved4261 2 ปีที่แล้ว

    You’re AMAZING Meghan!! Thank you so so very much 🙏🏽

  • @fredrickmunene7446
    @fredrickmunene7446 ปีที่แล้ว

    You have saved me a lot of time. Thank you

  • @assanethedon
    @assanethedon ปีที่แล้ว

    I hope this women is doing well. Thank you!

  • @yugalpoudel3998
    @yugalpoudel3998 2 ปีที่แล้ว +1

    You made this easy in 7 minutes
    My teacher took 45 minutes and was getting confused himself 😂

  • @markmosobo6378
    @markmosobo6378 2 ปีที่แล้ว

    thanks..i honestly prefer this approach it's direct and simple.

  • @parsasharifi5029
    @parsasharifi5029 2 ปีที่แล้ว

    you saved me a lot of time God bless you

  • @aunabbas8582
    @aunabbas8582 6 ปีที่แล้ว +5

    Thanks for saving my exam paper...

  • @raptor16atheart29
    @raptor16atheart29 2 ปีที่แล้ว

    Thank you so much! You may have just saved my grade!

  • @zakomohammed4417
    @zakomohammed4417 3 ปีที่แล้ว +1

    most helpfull for energy economices student

  • @cswalker21
    @cswalker21 4 ปีที่แล้ว +6

    I guess it doesn't matter since they get put to 0 anyway, but how'd you get 20/51 and 52/51 in the w column, please? I ended up with 5/17 and 13/17.

    • @Y2ZED
      @Y2ZED 4 ปีที่แล้ว

      Chris Walker me too 👌🏽

    • @projectmeme5835
      @projectmeme5835 4 ปีที่แล้ว

      same here.. she has the wrong values

    • @davidfirst8958
      @davidfirst8958 3 ปีที่แล้ว

      Me too, I pretty sure she made a mistake. so much for youtube tutorials being perfectly correct.

  • @marcq3921
    @marcq3921 3 ปีที่แล้ว +1

    Thank you for sharing your knowledge with us. It is much appreciated.

  • @ridazouga4144
    @ridazouga4144 2 ปีที่แล้ว +2

    Wonderful explanation👏👏👏, thank you!

  • @Brad324
    @Brad324 ปีที่แล้ว +1

    minor error at 6:26 - column w in row 2 should become 5/17 not 20/51. This does not affect the final solution, but I had to check it when you said out loud "21 / 51" and then wrote "20 / 51"

  • @jaysalting7377
    @jaysalting7377 4 ปีที่แล้ว +10

    How did you get 20/51 in the last table?

  • @armanrasta8112
    @armanrasta8112 3 หลายเดือนก่อน

    Watching it 9hrs before exam. Wish me luck

  • @Monica-cq2hr
    @Monica-cq2hr 2 ปีที่แล้ว

    Superb..crystal clear explanation...tqsm

  • @johnakudoro1543
    @johnakudoro1543 5 ปีที่แล้ว

    I have learnt a lot from this videos....Many thanks!

  • @jamesoseiamaniampongboaten5439
    @jamesoseiamaniampongboaten5439 3 ปีที่แล้ว +2

    OK... So when finding the pivot row and you get a zero... Since you are in for the smallest number do you choose the zero as the pivot row or not

  • @MShahbazKharal
    @MShahbazKharal 2 ปีที่แล้ว

    Good explanation! Reading the same thing from book take hours and there's so much text to confuse you.

  • @aashishbaniya1824
    @aashishbaniya1824 3 ปีที่แล้ว

    wonderful lecture mam very easy trick....

  • @tutkutopbas4792
    @tutkutopbas4792 5 ปีที่แล้ว +1

    Wow you are a savior Meghan, thank you so much!!

  • @dj_sal.z
    @dj_sal.z 3 ปีที่แล้ว

    utter shock, you are a life saver.

  • @raulbsharma
    @raulbsharma 2 ปีที่แล้ว

    This is too good to be true! You are a life saver! Thank you and the youtube!

  • @plugman_phil
    @plugman_phil 4 ปีที่แล้ว +8

    It was really helpful but I don't understand how did you get 20/51 in the last step because I got 5/17.

    • @naimhasyim7662
      @naimhasyim7662 4 ปีที่แล้ว

      same here

    • @kibesamuel697
      @kibesamuel697 4 ปีที่แล้ว

      @@naimhasyim7662 same here

    • @davidfirst8958
      @davidfirst8958 3 ปีที่แล้ว

      same here, I'm pretty sure she made a mistake.

  • @lif30Fdmesg
    @lif30Fdmesg 6 ปีที่แล้ว +4

    Thank You! Best explanation I found.

  • @alirezajafarineysiani
    @alirezajafarineysiani 2 ปีที่แล้ว

    this is a perfect explanation, Thank you.

  • @husseinsadiq8051
    @husseinsadiq8051 2 ปีที่แล้ว

    This is so good...exemplary well explained

  • @psychkid6082
    @psychkid6082 3 ปีที่แล้ว

    Gr8 explanation ...unforgetable

  • @annkirugi4377
    @annkirugi4377 6 ปีที่แล้ว +3

    Thank you Meghan. This is very helpful!

  • @jasonwhat2425
    @jasonwhat2425 6 ปีที่แล้ว +1

    Great short video with 💯 understanding

  • @macbaszler
    @macbaszler 2 ปีที่แล้ว

    Thank Heavens for this video🙌🏼

  • @tsephonabutunimubita5914
    @tsephonabutunimubita5914 2 ปีที่แล้ว

    Excellent explanation

  • @starryman1595
    @starryman1595 3 ปีที่แล้ว +1

    This is a wonderful explanation.Thank you for this !

  • @joycetan18
    @joycetan18 5 ปีที่แล้ว +3

    May I know how you do the calculations of 1st and 3rd row which are 0,17/4,1,-3/4,0 and 51 (1st row) and 0,-11/4,0,5,4,1, and 45 (3rd row). Thank you

  • @nathanrandall1663
    @nathanrandall1663 2 ปีที่แล้ว

    I appreciate this video so much🙏🙏🙏🙏🙏

  • @stephenmurichu4559
    @stephenmurichu4559 2 ปีที่แล้ว +1

    clear and easy to understand. Thanks a lot

  • @supm8te751
    @supm8te751 3 ปีที่แล้ว

    Thank you teacher, the video was tremendous help.

  • @chamodikarunathunge1292
    @chamodikarunathunge1292 3 ปีที่แล้ว

    Superb explanation. Thank you!

  • @gillianmuhanda2160
    @gillianmuhanda2160 2 ปีที่แล้ว

    woow that was spectacular ,thanks ,you made it much easy for understanding

  • @dinosaur959
    @dinosaur959 6 ปีที่แล้ว

    hi meghan. thanks for your tutorial.your fast tutorial break all my wall in my mind regarding on how to solve simplex method. regard from Malaysia

  • @NollyNandzTV
    @NollyNandzTV ปีที่แล้ว

    Thank you so much. You are blessed

  • @vasilisangel2360
    @vasilisangel2360 2 ปีที่แล้ว

    Extremely helpful! You made it simple. Thank you!

  • @stephenye6543
    @stephenye6543 3 ปีที่แล้ว +1

    But if the number in the pivot column is negative, how am i gonna choose the pivot element? Since i want to look for the smallest, but can it be negative ?

  • @ahmedbadday6741
    @ahmedbadday6741 2 ปีที่แล้ว

    The best of them all!

  • @wael6242
    @wael6242 4 ปีที่แล้ว

    Thank you teacher, I noticed that your last video was two years ago, you should start doing new videos again with different topics, you're great thank you again.

  • @praisemwiinga3329
    @praisemwiinga3329 4 ปีที่แล้ว

    You are an amazing teacher ❤🥰

  • @Matsoss
    @Matsoss ปีที่แล้ว

    It was extremely heplful. One think i dont get. How did we found the numbers on the thrid board 0 ,17/4, 1 , -3/4 etc

  • @KhiraBENRAHAL
    @KhiraBENRAHAL 3 ปีที่แล้ว +1

    thank you so much it was really usefull for me