Lec-5 Simplex Algorithm-Minimization Problems
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- Опубликовано: 2 окт 2024
- Lecture Series on Fundamentals of Operations Research by Prof.G.Srinivasan, Department of Management Studies, IIT Madras. For more details on NPTEL visit nptel.iitm.ac.in
That songs is mahamantar!
Om Asato Maa Sad-Gamaya |
Tamaso Maa Jyotir-Gamaya |
Mrtyor-Maa Amrtam Gamaya |
Om Shaantih Shaantih Shaantih ||
asato ma sadgamaya-means, “Lead me from the untruth to the truth.”
tamaso ma jyotirgamaya-means “Lead me from darkness to light.”
mrtyorma amrtam gamaya-means: “Lead me from death to immortality.”
“I was never born, nor can I ever die, I am not the body, mind and intellect, I am the blissful consciousness that serves as the deepest layer of all creation.”
I don't understand how can someone dislike Professor Srinivasan's videos.. All his videos are so damn clear and informative.. I am already his fan.. Made me understand all those topics which i was struggling to understand through my book within an hour or so.. TOOOO GOOOD :)
Really useful videos
This is the first time I m watching video, don't understand much in one go but you keep me interested in whatever you teach. Also I like the way you teach. I want to have all your lectures serially to learn.
Mathematics is beautiful when taught by a person who loves what he does... perfect....
41:47 it would be +2/5 instead of -2/5...still a great lecture..respect from heart.. thank you so much sir..
it's been 11 years now after the video is uploaded...It's still the best explanation of linear programming problems..Thank you very much professor
Great....Respect from Pakistan
thanks you
such a amazing teacher..........that's why IIT is known for in the world
Hat's off to you sir. Without the algebric explanation, the simplex table appears like mathematical black magic because it is very difficult to interpret it intuitively. I am grateful for, apart from a very lucid overall explanation, the algebric demystification, something that is rarely discussed in books.
You have a calculator in your mind or what?
:O I have to pause for 10sec and understand the calculations which you have done in your mind in just a fraction of the second. Really amazing professor.
Thank you.
Rafya Ayoubi yeh dekho. :-P
Woh comp pe dekho na ultrasurf se
tw laptop pe dekhlo
Prof. Srinivasan is an outstanding teacher. Mr. Manik Bhalla, if u see even Lata Mangeshkar will have dislikes. That does not a problem of the teacher. Some of them could be naughty students of the institution who might have been disciplined by him during their student Life.😄
thanks professor , it was very informative
very very thanku sir, very very best teaching
every one under stood.
Yeah, I noticed that too. Good thing the 11/5 is larger either way so it didn't matter.
Thanks for everytime I need to know about this subject No need of book
Awsome sir.thanks for making the videos available for us
Respected Sir,
thank you very much for sharing so simply all concepts of Linear Programming and Simplex method. You are really hard core teacher. I had watched all of your lectures. I enjoyed every lecture as a POEM. You have built each lecture by a brick by brick leading to NICELY BUILT CONCEPT with through understanding. May God bless you with health and prosperity. And I expect you to bless us to be enough good in these area. Thank you very much sir. We need your lifetime support. It would be greatful if you can guide us how all these can lead to research.
I love this guy!! Thanks a lot.
Very very cool presentation.
wonderful while beyond my understanding
thanks for taking your time to upload these videos.....one big problem less now...
goddamit i love indians, did you see that? he dropped the bad chalk, grabbed a new one
found one more pioneer like Prof.S K Som and Prof. Rajesh Prasad😎😎😎😎
Good contributed stuff really we need it
Good please u all for science provisions
Great Mr. Sirnivasan.
Ask you
Why you putting -x3 and why you don't put +x3 regardless slack variables
Did he made a mistake on 41:40 ? Should not there be 2/5 instead -2/5?
Yeah you're right..
Swarnali Hait i don,t understand this method...........
yes he did even in last row it should be 3/5 instead of -7/5
yes its true, he did a mistake.
vaibhav kumar Cj - Zj = [-1- {(-1)*(-2/5) } ] = -7/5 is it correct r not??
Great teaching thank you so much
Super Prof Srinivasan , Actually i got a chance to meet him when i attended a workshop on system identification which was taught by Prof ArunKumar Tangirala
thanks for sharing, It helped me a lot
41:40 In the 2nd iteration, he calculated Cj-Zj for X4 wrong. The result should have 2/5.
0-(-2/5) = 2/5
Still enjoyed it and learned a lot.
Excellent sar 👍
There is a huge scarcity of a professor like SR. G.Srinivasan in our country,. Tremdous work sir. a huge thank you
41:44 - It is +2/5
+Mouhyemen Khan
you're right
but i think it doesn't affect the final answer
very informative, but the slight noise from the chalk is kinda distracting
wonderful,thank you very much sir,for your help;
When i get a negative in the last volume what to i do? Do i compare it with the rest of the values as normally to see if it is the lowest and use it as a pivot row or do i no longer take it into account, just how i would do if there was a zero in the pivot column?
you are the best!!
Thank you sir !
Thank you. for the excellent lecture. You are so clear and consistent... much better than my professors.
And now for the upcoming generation
It' would be impossible to have such lecturers ....becoz our generation students don't have such knowledge to explain may be just 100 in 5 ...thts the reality
Sir, If there is a linear problem with all constraints having = sign...then where we should insert artificial variable??
something weird in second iternation...things are not adding up for cj-zj in last column...
Instead of going to class i think i should just study from ur videos is much helpful...
ur awsome proffessor and thanks for teaching me in youtube. :)
Why professor multiply with negative number -1,-1 and get a positive number 7,5 at solution row at 41:00
You are my guru! Thank you so much for this video... it has helped me immensely!!!
Thank you sir
@TheQuinbusflestrin wait! i take that back..its a very small error..doesnt make much difference on the solution. :)
Why can we not start with X1 and X2 as basic variables instead of going for artificial variables?
u are a great teacher thank u ^-^
unfortunately the internet speed in my country is very low, and thus it would take me an entire day to load this video. therefore, could you please demonstrate how to solve a transportation problem using VMA in a brief video.
plz guys whoever knows where i can find a brief video of vogel method inform me
Simplex is complex for me but now it became simplex again.
Hello, I have a test and I need help with one problem!! If we want to minimize a function, we change the sign of the variables and proceed as a typical maximization problem, BUT, if the coefficients of the original function are all positive, the change will make them negative... and in the first iteration, all the Cj-Zj will be negative!! (and there are no artifficial variables) So, how do I continue?? Should I pick the less negative Cj-zj?? Thank you, great lesson!!
in maximization should'n you chose the most negative column in order to make is positive? why did you choose first (biggest ) column at 52:11 ?
This prof really knows how to teach. The lecture itself is very informative. Great respect, Sir.
me guastaria saber si existe subtitulos de esta clase,
Hello, I want to ask if in the cj-zj row, the two has the same amount, how should I choose which is the optimum column? Ex. Column A 1000 & Column B 1000. Which is it? please help me. Thank you!
Ty very much sir
can you tell any good reference book for the above lectures, like pdf is available of that book
May God reward you for all your effort and all the valuable information you easily provide to us .
ameen
Thankyou so much sir...
You have explained it very well in the simplest manner possible...
Esme (-1) ka Mulityply nhi krege kyu
R-E-S-P-E-C-T sir.....u've helped alot...!!!
Doesnt he look abit like Agent Kellerman........from Prison Break...:D
In these cases try to choose according to the higher Cj value or variable which is effecting the solution
in a case where we dont have "negative" in "cj-zj role" how do we get the entering body?
This is because instead of taking zj-cj ; he is opting for cj-zj...pay attention
Thank u guru ji
Huge respect
@Prof.G.Srinivasan sir u did mistake 42.30 u take -2/5 instead of 2/5 and last row too
35:01 some important observations
that was great :) thnx Pr
thanks!
when cj-zj is used, you look for "positive" and not negative...pay attention
can u plzzzz
solve this sum
z=6x1 + 8x2
30x1 + 20x2 < 300
5x1 +10x2
You can choose either. It just means that there are alternate optimal solutions
he has made it a cakewalk.amazing sir....
you are a great lecturer, and I used to hate this subject but i don't any more
thank u so much
i wld say like 10000000 x better than my class..thaxsss al lot sir
what an excellent teacher
Like it!
thank you sir.
best lecture ever
what did he do at 22:30
Thanks a ton!
superb explanation...really useful for me and hope for all...best teacher ever I seen
thank you sir
@TheRAMARAVI yes their is one error is cj- zj=2/5
He is soo perfect
Thank you sir.......
You teach very nicely sir .. Thank you very much
thanks when was this video shot?
Good class and helpful, thanks
thanks...got a raugh idea how to proceed
what an amazing teacher.
Excellent. The best online lecture series I have ever come across. Thank you.
wonderful, best teacher .....................
Great
thanks a lot uploader and thank you professor it helped a lot :)
sir can you make a video on mixed constraints
He is explaining very well..quite informative..Thanks
38:25 prob maxi ka hai ya mini ka
Good