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Simplex Method, Example 1 

Dr D’s Math Help
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Solving a standard maximization linear programming problem using the simplex method.

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15 сен 2024

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Комментарии : 309   
@franciscadevasconcelos
@franciscadevasconcelos 3 года назад
I wish this woman good health, happiness and money, loved the explanation!
@akhilsrivastava33
@akhilsrivastava33 2 года назад
I wish same for you
@abdulfetahkedir4097
@abdulfetahkedir4097 2 года назад
that's awsome explanation
@r.f2173
@r.f2173 6 месяцев назад
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 8 дней назад
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 года назад
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 года назад
🤣🤣🤣🤣🤣🤣🤣🤣
@n-da-bunka2650
@n-da-bunka2650 2 года назад
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 года назад
facts, saved me for my final in a few hours💗
@anycolouryoulike8567
@anycolouryoulike8567 2 года назад
@@kelseybuley9865 how did you do?
@scarlettwang2146
@scarlettwang2146 Год назад
@@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 Год назад
You just made 6 hours worth of lectures into 7 min. Thank you for making me open my eyes!
@lyl380
@lyl380 10 месяцев назад
hey can i ask a quick question'
@dlwlrmae
@dlwlrmae 3 года назад
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!
@nexovec
@nexovec Год назад
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 10 месяцев назад
I noticed this aswell but wasn't sure cuz no one else said anything about it, thanks
@cedocedd8108
@cedocedd8108 9 месяцев назад
Thank you man, You're a life saver. I have been wondering, where I was going wrong.
@nexovec
@nexovec 9 месяцев назад
@@cedocedd8108 It's kind of crazy how noone out of so many people noticed
@cedocedd8108
@cedocedd8108 9 месяцев назад
@@nexovec I had to recheck my workings twice.
@II_Emilia_II
@II_Emilia_II 12 дней назад
Glad I wasn’t the only one that noticed it :) thanks for the clarification
@nofuss7337
@nofuss7337 3 года назад
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 года назад
you just nailed what my lecturer couldn't make me understand clearly for hours in 7:43 mins. Thank you
@ridazouga4144
@ridazouga4144 2 года назад
👏👏👏👏👏👏
@oliverclennett6915
@oliverclennett6915 3 года назад
Far more in depth and thorough explanation than my teacher on my course. Thank you.
@CliffCarmichael
@CliffCarmichael 4 года назад
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.
@theshieldhero7062
@theshieldhero7062 2 месяца назад
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
@theplunkinator
@theplunkinator 4 года назад
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 года назад
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.
@Maen963
@Maen963 3 года назад
i dont really know why the hell still traditional universities exist ?! awesome explanation
@VibeGator01
@VibeGator01 3 года назад
Broooo
@user-kw8iw8qd1b
@user-kw8iw8qd1b 5 месяцев назад
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
@joshualiu1976
@joshualiu1976 4 месяца назад
clearest explanation in nearly 8 minutes! thanks!
@agentsmidt3209
@agentsmidt3209 3 года назад
Forget this. I'll just be a stripper.
@Cowboii7
@Cowboii7 3 года назад
lmao
@Sam-zt8gx
@Sam-zt8gx 3 года назад
Was expecting some motivational stuff in the comments....did not disappoint.
@jack-g3j8l
@jack-g3j8l 3 года назад
Revolutionary... world's first AI stripper
@harshvardhanheda7153
@harshvardhanheda7153 3 года назад
Made my day
@donyalewis7291
@donyalewis7291 2 года назад
😁😁😁
@davenorton4768
@davenorton4768 3 года назад
Thanks 👍👍☺️ i dont know why the lectures makes it more complicated and always RU-vid saved us 🔥
@africanakhumalo941
@africanakhumalo941 Год назад
I Don't even know how to express my gratitude....really appreciate your explanation
@thomasdemunck4326
@thomasdemunck4326 Год назад
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 11 месяцев назад
How did I have to scroll this much to find this error reported
@cedocedd8108
@cedocedd8108 4 месяца назад
@@arhamshah3425 Finally, Same here. I've repeated the whole example twice.
@learningchannelyoume935
@learningchannelyoume935 3 года назад
the way of solving this problem was like royal,i mean straight forward.I love you madam.
@guywhoasked903
@guywhoasked903 2 года назад
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
@Ion_licht
@Ion_licht Год назад
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
@thecybexlady9311
@thecybexlady9311 3 года назад
You are a god! You can explaiin better than my 4th year engineering management course! God bless you from Ottawa, Canada!
@sweetmintkiss
@sweetmintkiss 2 года назад
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!
@radharman2431
@radharman2431 3 года назад
I have an exam in 2 weeks and this never made proper sense to me. Thank you so much!!!
@dareosoneye6218
@dareosoneye6218 3 года назад
You have no idea how much you’ve saved me, Thank you!
@chigbuchiamaka4852
@chigbuchiamaka4852 Год назад
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 4 месяца назад
Hhhh 😊 The woman is a genius
@cswalker21
@cswalker21 4 года назад
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 года назад
Chris Walker me too 👌🏽
@projectmeme5835
@projectmeme5835 3 года назад
same here.. she has the wrong values
@davidfirst8958
@davidfirst8958 3 года назад
Me too, I pretty sure she made a mistake. so much for youtube tutorials being perfectly correct.
@abishekraju4521
@abishekraju4521 4 года назад
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.
@yusufhamza7573
@yusufhamza7573 6 лет назад
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
@kanzulmahrifamihlar8694
@kanzulmahrifamihlar8694 2 года назад
Thank you very very much.. Recently I'm searching for simple way to solve simplex method and I found this video
@talu6695
@talu6695 3 года назад
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 года назад
it doesn't matter as they become the zero factors
@wpxfallen
@wpxfallen 5 лет назад
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
@lawrenceemuriaekale2838
@lawrenceemuriaekale2838 2 года назад
Be blessed... My lecturer was just copy pasting a pdf without elaborating how....
@yugalpoudel3998
@yugalpoudel3998 2 года назад
You made this easy in 7 minutes My teacher took 45 minutes and was getting confused himself 😂
@jamesoseiamaniampongboaten5439
@jamesoseiamaniampongboaten5439 3 года назад
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
@user-jq2fb7rc8c
@user-jq2fb7rc8c 9 месяцев назад
Ma you’re just too smart and plain,I give you your flowers 😁
@sanjeetk7967
@sanjeetk7967 4 года назад
This is the best Didnt attend a single class in college and this makes up for it a bit thanks
@vincentabarca7
@vincentabarca7 2 года назад
May god bless you with infinite happiness and health. Thank you for helping me with my exam!
@lunasmum6869
@lunasmum6869 4 года назад
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!!
@faelcavalcanti
@faelcavalcanti 3 года назад
there's one more thing ... in the last table, last line and in the fourth column, the value should be 13/17
@febriansantosa5210
@febriansantosa5210 2 года назад
Thank you for your explanation, now I understand how to finish my homework.
@leimayara6319
@leimayara6319 3 года назад
this is the clearest explanation i've seen so far.
@leimayara6319
@leimayara6319 3 года назад
YOU SAVED MEEE. OMG, THANKS.
@jaysalting7377
@jaysalting7377 4 года назад
How did you get 20/51 in the last table?
@shanededal3635
@shanededal3635 3 года назад
i really need this answer specifically
@faelcavalcanti
@faelcavalcanti 3 года назад
5/17
@cswalker21
@cswalker21 4 года назад
Thank you Ms. De Witt; you are quite good at this.
@plugman_phil
@plugman_phil 4 года назад
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 года назад
same here
@kibesamuel697
@kibesamuel697 3 года назад
@@naimhasyim7662 same here
@davidfirst8958
@davidfirst8958 3 года назад
same here, I'm pretty sure she made a mistake.
@andrewangellomwilawa2298
@andrewangellomwilawa2298 3 года назад
Well understand, thanks for the best and simplest explanation.
@virajmehtavkm
@virajmehtavkm 10 месяцев назад
Ma'am your video made this sum so simple to understand thanks a bunch 🤗
@dickensgifted8467
@dickensgifted8467 2 года назад
Wow, what a great class I had. Thank you, may God bless you.💓
@stephenye6543
@stephenye6543 2 года назад
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 ?
@donyalewis7291
@donyalewis7291 2 года назад
Thank you sooooooooooooooooooooooooooooooo much. This is such a big help. You are a life saver Ms De Witt!!!
@joycetan18
@joycetan18 5 лет назад
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
@theneeljain
@theneeljain 4 года назад
she did LCM
@stylianosdimas1992
@stylianosdimas1992 2 года назад
God bless you Ms De Witt!! You made it look so easy
@aunabbas8582
@aunabbas8582 6 лет назад
Thanks for saving my exam paper...
@marcq3921
@marcq3921 3 года назад
Thank you for sharing your knowledge with us. It is much appreciated.
@garshaspkeyvan5546
@garshaspkeyvan5546 2 года назад
Gold bless your madam, best lecture regarding simplex method.
@Brad324
@Brad324 Год назад
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"
@starryman1595
@starryman1595 3 года назад
This is a wonderful explanation.Thank you for this !
@danialrahmani
@danialrahmani Год назад
You are an angel who saved my life
@Matt-dy7uq
@Matt-dy7uq Год назад
at 6:27 shouldn't W = 5/17 and the rhs = 12? Every way I'm calculating it I can't get 20/51 and 6
@user-lp7ot6bu3e
@user-lp7ot6bu3e Год назад
THANKS YOU! IT SAVES MY LINEAR ALGEBRA FINALS TOMORROW.😭
@genevieved4261
@genevieved4261 2 года назад
You’re AMAZING Meghan!! Thank you so so very much 🙏🏽
@faelcavalcanti
@faelcavalcanti 3 года назад
everything ok except that ... don't should be 5/17 in cell, on second line and fourth column, exactly at 6:25?
@brucelam115
@brucelam115 8 месяцев назад
Got a question, what if one of the contraisnt doesnt have an x1 or x2
@armanrasta8112
@armanrasta8112 2 месяца назад
Watching it 9hrs before exam. Wish me luck
@fredrickmunene7446
@fredrickmunene7446 Год назад
You have saved me a lot of time. Thank you
@hermosa8916
@hermosa8916 Год назад
Best explanation ever. Thank You
@shaharyar4093
@shaharyar4093 2 года назад
What if you still have negatives in the bottom row
@mwapechalwe2921
@mwapechalwe2921 Год назад
Am asking why didn't you use the smallest value between 12 and 9
@noone-md2bt
@noone-md2bt Год назад
I really love you from the bottom of my heart , thank u sooooo much
@raptor16atheart29
@raptor16atheart29 Год назад
Thank you so much! You may have just saved my grade!
@Matsoss
@Matsoss Год назад
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
@raulbsharma
@raulbsharma 2 года назад
This is too good to be true! You are a life saver! Thank you and the youtube!
@assanethedon
@assanethedon Год назад
I hope this women is doing well. Thank you!
@lif30Fdmesg
@lif30Fdmesg 6 лет назад
Thank You! Best explanation I found.
@cagataykoc3960
@cagataykoc3960 4 года назад
Sir, i have question. What if x=>40 and y=>25 insted of 0. Do we still not apply them into the question ? or how do we apply them ?
@n-da-bunka2650
@n-da-bunka2650 2 года назад
It sounds like you are asking for optimizing the minimum instead then?
@ridazouga4144
@ridazouga4144 2 года назад
Wonderful explanation👏👏👏, thank you!
@isrealonoja8584
@isrealonoja8584 2 года назад
What is different between maximize and minimize in simplex method?
@markmosobo6378
@markmosobo6378 2 года назад
thanks..i honestly prefer this approach it's direct and simple.
@tutkutopbas4792
@tutkutopbas4792 5 лет назад
Wow you are a savior Meghan, thank you so much!!
@zakomohammed4417
@zakomohammed4417 3 года назад
most helpfull for energy economices student
@vasilisangel2360
@vasilisangel2360 2 года назад
Extremely helpful! You made it simple. Thank you!
@johnakudoro1543
@johnakudoro1543 5 лет назад
I have learnt a lot from this videos....Many thanks!
@Monica-cq2hr
@Monica-cq2hr 2 года назад
Superb..crystal clear explanation...tqsm
@177or22
@177or22 3 года назад
What about the situation you actually have to make sure (x, y, u, w, p) >= 0 ?? This example does not showcase how to handle the situation
@parsasharifi5029
@parsasharifi5029 Год назад
you saved me a lot of time God bless you
@jasonwhat2425
@jasonwhat2425 6 лет назад
Great short video with 💯 understanding
@gillianmuhanda2160
@gillianmuhanda2160 2 года назад
woow that was spectacular ,thanks ,you made it much easy for understanding
@chrisstar6848
@chrisstar6848 4 года назад
how do you compute the 3 table 1 row from 5 to 17/4?
@destinyjob9348
@destinyjob9348 3 года назад
Dude, I've been going over this for almost an hour, I don't understand how she got 17/4...
@JoaoPereira-sy4mv
@JoaoPereira-sy4mv 3 года назад
@@destinyjob9348 you subtract 5 - 3*1/4 = 17/4. (R1 - 3R2 -> R1)
@husseinsadiq8051
@husseinsadiq8051 Год назад
This is so good...exemplary well explained
@alirezajafarineysiani
@alirezajafarineysiani 2 года назад
this is a perfect explanation, Thank you.
@MShahbazKharal
@MShahbazKharal 2 года назад
Good explanation! Reading the same thing from book take hours and there's so much text to confuse you.
@supm8te751
@supm8te751 2 года назад
Thank you teacher, the video was tremendous help.
@macbaszler
@macbaszler 2 года назад
Thank Heavens for this video🙌🏼
@stephenmurichu4559
@stephenmurichu4559 2 года назад
clear and easy to understand. Thanks a lot
@dinosaur959
@dinosaur959 6 лет назад
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
@miltoncharlz5556
@miltoncharlz5556 2 года назад
Omgggg…. I just understood this in my first try…. My professor made it sound like rocket science lol
@KhiraBENRAHAL
@KhiraBENRAHAL 3 года назад
thank you so much it was really usefull for me
@cindyhicks6126
@cindyhicks6126 6 лет назад
Thank you!!! This was so helpful and so very simple. I can't thank you enough.
@crystaltshivule554
@crystaltshivule554 3 года назад
Thank you so much, that was helpful
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