Simplex Method, Example 1

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  • Опубліковано 15 жов 2015
  • Solving a standard maximization linear programming problem using the simplex method.

КОМЕНТАРІ • 306

  • @franciscadevasconcelos
    @franciscadevasconcelos 3 роки тому +158

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

  • @r.f2173
    @r.f2173 4 місяці тому +10

    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.

  • @potatoplays9356
    @potatoplays9356 3 роки тому +158

    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 роки тому

      🤣🤣🤣🤣🤣🤣🤣🤣

    • @n-da-bunka2650
      @n-da-bunka2650 2 роки тому +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 роки тому +4

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

    • @anycolouryoulike8567
      @anycolouryoulike8567 2 роки тому +1

      @@kelseybuley9865 how did you do?

    • @scarlettwang2146
      @scarlettwang2146 Рік тому +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

  • @agentsmidt3209
    @agentsmidt3209 3 роки тому +139

    Forget this. I'll just be a stripper.

  • @hElie885
    @hElie885 Рік тому +18

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

    • @lyl380
      @lyl380 9 місяців тому

      hey can i ask a quick question'

  • @dlwlrmae
    @dlwlrmae 3 роки тому +12

    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!

  • @nofuss7337
    @nofuss7337 3 роки тому +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!

  • @oliverclennett6915
    @oliverclennett6915 2 роки тому +6

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

  • @theshieldhero7062
    @theshieldhero7062 23 дні тому

    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

  • @lesterawotwe6464
    @lesterawotwe6464 3 роки тому +15

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

  • @nexovec
    @nexovec 11 місяців тому +8

    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 8 місяців тому +1

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

    • @cedocedd8108
      @cedocedd8108 8 місяців тому +1

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

    • @nexovec
      @nexovec 8 місяців тому +1

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

    • @cedocedd8108
      @cedocedd8108 8 місяців тому +2

      @@nexovec I had to recheck my workings twice.

  • @CliffCarmichael
    @CliffCarmichael 4 роки тому +1

    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.

  • @guywhoasked903
    @guywhoasked903 2 роки тому

    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

  • @dareosoneye6218
    @dareosoneye6218 3 роки тому +3

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

  • @davenorton4768
    @davenorton4768 3 роки тому +2

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

  • @thecybexlady9311
    @thecybexlady9311 3 роки тому +1

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

  • @learningchannelyoume935
    @learningchannelyoume935 3 роки тому +1

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

  • @Maen963
    @Maen963 3 роки тому +33

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

  • @africanakhumalo941
    @africanakhumalo941 Рік тому +1

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

  • @joshualiu1976
    @joshualiu1976 3 місяці тому +1

    clearest explanation in nearly 8 minutes! thanks!

  • @sweetmintkiss
    @sweetmintkiss 2 роки тому

    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!

  • @theplunkinator
    @theplunkinator 4 роки тому +11

    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 роки тому +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.

  • @Ion_licht
    @Ion_licht 11 місяців тому

    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

  • @radharman2431
    @radharman2431 3 роки тому +1

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

  • @user-kw8iw8qd1b
    @user-kw8iw8qd1b 4 місяці тому

    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

  • @cswalker21
    @cswalker21 4 роки тому +1

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

  • @donyalewis7291
    @donyalewis7291 2 роки тому

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

  • @dickensgifted8467
    @dickensgifted8467 2 роки тому

    Wow, what a great class I had.
    Thank you, may God bless you.💓

  • @andrewangellomwilawa2298
    @andrewangellomwilawa2298 3 роки тому +2

    Well understand, thanks for the best and simplest explanation.

  • @kanzulmahrifamihlar8694
    @kanzulmahrifamihlar8694 2 роки тому

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

  • @marcq3921
    @marcq3921 3 роки тому +1

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

  • @febriansantosa5210
    @febriansantosa5210 2 роки тому

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

  • @genevieved4261
    @genevieved4261 2 роки тому

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

  • @stylianosdimas1992
    @stylianosdimas1992 2 роки тому

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

  • @vasilisangel2360
    @vasilisangel2360 2 роки тому

    Extremely helpful! You made it simple. Thank you!

  • @starryman1595
    @starryman1595 3 роки тому +1

    This is a wonderful explanation.Thank you for this !

  • @wpxfallen
    @wpxfallen 5 років тому +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

  • @sanjeetk7967
    @sanjeetk7967 4 роки тому

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

  • @virajmehtavkm
    @virajmehtavkm 8 місяців тому

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

  • @fredrickmunene7446
    @fredrickmunene7446 Рік тому

    You have saved me a lot of time. Thank you

  • @hermosa8916
    @hermosa8916 Рік тому

    Best explanation ever. Thank You

  • @vincentabarca7
    @vincentabarca7 2 роки тому

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

  • @abishekraju4521
    @abishekraju4521 4 роки тому +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.

  • @garshaspkeyvan5546
    @garshaspkeyvan5546 2 роки тому

    Gold bless your madam, best lecture regarding simplex method.

  • @jasonwhat2425
    @jasonwhat2425 6 років тому +1

    Great short video with 💯 understanding

  • @raulbsharma
    @raulbsharma 2 роки тому

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

  • @aunabbas8582
    @aunabbas8582 6 років тому +5

    Thanks for saving my exam paper...

  • @raptor16atheart29
    @raptor16atheart29 Рік тому

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

  • @leimayara6319
    @leimayara6319 3 роки тому

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

  • @Monica-cq2hr
    @Monica-cq2hr 2 роки тому

    Superb..crystal clear explanation...tqsm

  • @ridazouga4144
    @ridazouga4144 2 роки тому +1

    Wonderful explanation👏👏👏, thank you!

  • @gillianmuhanda2160
    @gillianmuhanda2160 2 роки тому

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

  • @husseinsadiq8051
    @husseinsadiq8051 Рік тому

    This is so good...exemplary well explained

  • @alirezajafarineysiani
    @alirezajafarineysiani 2 роки тому

    this is a perfect explanation, Thank you.

  • @tutkutopbas4792
    @tutkutopbas4792 5 років тому +1

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

  • @noone-md2bt
    @noone-md2bt Рік тому +1

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

  • @stephenmurichu4559
    @stephenmurichu4559 2 роки тому +1

    clear and easy to understand. Thanks a lot

  • @supm8te751
    @supm8te751 2 роки тому

    Thank you teacher, the video was tremendous help.

  • @user-lp7ot6bu3e
    @user-lp7ot6bu3e Рік тому

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

  • @aashishbaniya1824
    @aashishbaniya1824 3 роки тому

    wonderful lecture mam very easy trick....

  • @lif30Fdmesg
    @lif30Fdmesg 6 років тому +3

    Thank You! Best explanation I found.

  • @yusufhamza7573
    @yusufhamza7573 6 років тому +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

  • @lakoper478
    @lakoper478 3 роки тому +2

    truly a life saver! thank you

  • @jacksonante6189
    @jacksonante6189 2 роки тому

    Good work madam👍

  • @fuhanshen2616
    @fuhanshen2616 2 роки тому

    Thank you so much. Super clear and helpful

  • @chamodikarunathunge1292
    @chamodikarunathunge1292 2 роки тому

    Superb explanation. Thank you!

  • @talu6695
    @talu6695 2 роки тому +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 роки тому +1

      it doesn't matter as they become the zero factors

  • @lawrenceemuriaekale2838
    @lawrenceemuriaekale2838 2 роки тому

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

  • @LunaNepal
    @LunaNepal Рік тому

    You made it so easy. thanks

  • @macbaszler
    @macbaszler 2 роки тому

    Thank Heavens for this video🙌🏼

  • @thomasdemunck4326
    @thomasdemunck4326 Рік тому +9

    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 10 місяців тому +1

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

    • @cedocedd8108
      @cedocedd8108 3 місяці тому +1

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

  • @parsasharifi5029
    @parsasharifi5029 Рік тому

    you saved me a lot of time God bless you

  • @danialrahmani
    @danialrahmani Рік тому

    You are an angel who saved my life

  • @dubainini7190
    @dubainini7190 2 роки тому

    utter shock, you are a life saver.

  • @tsephonabutunimubita5914
    @tsephonabutunimubita5914 2 роки тому

    Excellent explanation

  • @johnakudoro1543
    @johnakudoro1543 5 років тому

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

  • @cindyhicks6126
    @cindyhicks6126 6 років тому +1

    Thank you!!! This was so helpful and so very simple. I can't thank you enough.

  • @psychkid6082
    @psychkid6082 3 роки тому

    Gr8 explanation ...unforgetable

  • @yugalpoudel3998
    @yugalpoudel3998 2 роки тому +1

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

  • @crystaltshivule554
    @crystaltshivule554 3 роки тому +1

    Thank you so much, that was helpful

  • @lunasmum6869
    @lunasmum6869 4 роки тому +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!!

  • @jamesoseiamaniampongboaten5439
    @jamesoseiamaniampongboaten5439 3 роки тому +1

    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

  • @KhiraBENRAHAL
    @KhiraBENRAHAL 3 роки тому +1

    thank you so much it was really usefull for me

  • @user-jq2fb7rc8c
    @user-jq2fb7rc8c 8 місяців тому +1

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

  • @nathanrandall1663
    @nathanrandall1663 Рік тому

    I appreciate this video so much🙏🙏🙏🙏🙏

  • @devmahad
    @devmahad 5 місяців тому

    Great Explanation !!

  • @brucelam115
    @brucelam115 6 місяців тому

    Got a question, what if one of the contraisnt doesnt have an x1 or x2

  • @NollyNandzTV
    @NollyNandzTV Рік тому

    Thank you so much. You are blessed

  • @ahmedbadday6741
    @ahmedbadday6741 Рік тому

    The best of them all!

  • @stephenye6543
    @stephenye6543 2 роки тому +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 ?

  • @tomd966
    @tomd966 7 років тому +10

    This was so helpful, thank you

  • @maktheory9619
    @maktheory9619 5 років тому

    very nice explanation......

  • @claramartins3581
    @claramartins3581 6 років тому +5

    Very good! So helpful!!! thanks a lot!

  • @raghuamara7649
    @raghuamara7649 3 роки тому

    Nice explanation madam

  • @Poemsmaker14
    @Poemsmaker14 5 років тому +2

    thank you so much for this explanation! all the way from the netherlands

  • @spinaustine
    @spinaustine 5 років тому +1

    Thank you very much.....very clear

  • @HoNestle666
    @HoNestle666 Рік тому

    Genius! Thank you so much

  • @chigbuchiamaka4852
    @chigbuchiamaka4852 Рік тому

    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.

  • @zakomohammed4417
    @zakomohammed4417 3 роки тому +1

    most helpfull for energy economices student

  • @leonyuewu4128
    @leonyuewu4128 6 років тому

    Are x and u nonbasic variables and the rests are basic variables?