The best way of explaining the dual simplex method. Ma'am, please keep teaching us this way. You are making a great impact. Please keep doing it...thanks!
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After 7-8 try of a single question finally I got a solution by following your video. Now God knows it right or wrong but atleast i got an answer 😊😊😇😇 thank u very much..
P-series, glad you liked the video! Thanks for your comment and appreciation, it keeps me motivating to make more of such videos. Please share. Let's make maths learning go viral!!
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Ajay, glad you liked the explanation! I shall be live on 20.09.2020 at 10:00 AM on Unacademy. In this live class we shall discussed plenty of PYQs of CSIR NET. Please register here- unacademy.com/class/pyqs-on-linear-programming-problem-lpp-part-ii/WQ85ZBWH Looking forward to seeing you in the class.
Thanks, Akhand 😊😊 Please join my free live class on Unacademy. Use my code DRNEGI- 1. Free Live Class at 10:30 am on 09.02.2021 bit.ly/36TgFid 2. Free Live Class at 5:00 pm on 09.02.2021 bit.ly/3q1Dyrb 3. Join our Telegram Group- t.me/drvineeta 4. Join my Telegram Channel- t.me/s/drvineetanegi Thank you a ton!! 😍😍
Deepu Giri Goswami, if you solve a Primal Problem directly with simplex method or convert it to Dual Problem and then solve it with simplex method, the answer will be same in both the cases. Hope it will help!!!
Madam if it is asked that use duality to solve the primal maximization problem ? then in dual first I will convert it to minimization then for solving it in simplex method i will convert it to maximization problem ,then as before solve it .Am I correct mam?
Thanks Mam........... Mam mene u tube par dual ki jitni bhi video dekhi hai unme sabse acchi video aapki hai. Apne bahut acche se simplex or dual simplex me diffrence bataya. [ Par Mam mera ek doubt hai..... Mam jo aapne Zj-Cj bataya hai mam uski jagah book me Cj-Zj likha hua hai . Mam me bahut confuse hu .Please reply kare.] Thank u mam........HIT THE LIKE FOR MAM...
Sanjna Kaur, thanks for your kind words! Sanjna, don't need to get confused, there is no difference! When you compute Zj-Cj you will get negative values that will be required to be converted into positive values whereas when you compute Cj-Zj you will get positive values that will be required to be converted into negative values. I hope it would help.
Renuka Rao, dual simplex method is altogether different than the simplex method. When you have to solve a problem with dual simplex method, it has to be solved with this method only, which you can find in this video. Hope it will help!! Please share with friends!
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Abhilash, don't need to get confused, there is no difference! When you compute Zj-Cj you will get negative values that will be required to be converted into positive values whereas when you compute Cj-Zj you will get positive values that will be required to be converted into negative values. I hope it would help.
Ma'am in first iteration you said that -3/5 is minimum but -1 is minimum compared to -3/5. If sign is not considered then 3/5 is minimum in all four values
Please join my free live class on Unacademy. Use my code DRNEGI- 1. Free Live Class at 10:30 am on 09.02.2021 bit.ly/36TgFid 2. Free Live Class at 5:00 pm on 09.02.2021 bit.ly/3q1Dyrb 3. Join our Telegram Group- t.me/drvineeta 4. Join my Telegram Channel- t.me/s/drvineetanegi Thank you a ton!! 😍😍
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Good evening mam Mam your teaching is very good but I have confusion somewhere. 1) we always find Cj - Zj, but you find Zj- Cj. Why?? 2) you find max of -10,-2 and -15, so in this -2 is greater so why did you take -15? These doubts are there, and because of this I m not able to understand the concept. Can you plg help me to solve this confusion?
1) Understanding the dual problem leads to specialized algorithms for some important classes of linear programming problems. 2) The dual can be useful for sensitivity analysis. 3) Sometimes finding an initial feasible solution to the dual is much easier takes less time than finding one for the primal. 4) Sometimes the dual is just easier to solve. Join my Free LIve Class on Unacademy- unacademy.com/class/class-5-linear-integral-equations-important-topics-part-v/WCL20K64
@@learningmathswithconcepts7203 Join My Free Live Class on Unacademy- unacademy.com/course/class-5-linear-integral-equations-important-topics-part-v/MJWA0X2O
Best video I found
Thanks you think so! I would appreciate if you can share it with friends.
The best way of explaining the dual simplex method. Ma'am, please keep teaching us this way. You are making a great impact. Please keep doing it...thanks!
I thank you for learning with me. I appreciate it. I’m good at replying to your comments and I love doing so. So, please put your experience in the form of a comment below. It would be incredible if you can join our community on other channels-
1. Join our Telegram Group-
t.me/drvineeta
2. Join my Telegram Channel-
t.me/s/drvineetanegi
Thank you a ton!! 😍😍
After 7-8 try of a single question finally I got a solution by following your video. Now God knows it right or wrong but atleast i got an answer 😊😊😇😇 thank u very much..
Very very nice video Dr.vineeta negi ji.
P-series, glad you liked the video! Thanks for your comment and appreciation, it keeps me motivating to make more of such videos. Please share. Let's make maths learning go viral!!
The best video regarding Dual Simplex Method. Thank you so much Ma'am. I'll be really grateful to you for this
Very informative and concept clearing, video!! Thanks for the video mam!!
Himanshu Negi, glad you found this video informative and concept clearing! Thanks for your comment and appreciation, it keeps me motivating to make more of such videos. Please share. Let's make maths learning go viral!!
Great,,, mam,,, good explaination 🙏🙏🙏🙏
Ajay, glad you liked the explanation! I shall be live on 20.09.2020 at 10:00 AM on Unacademy. In this live class we shall discussed plenty of PYQs of CSIR NET. Please register here-
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Looking forward to seeing you in the class.
So helpful ma'am..
So helpful....God bless you
One of the greatest explanation so thanks🙏🙏
Thanks, Akhand 😊😊
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Artificial variables add jarke bhi to kar sakte hai
Can we solve this using Big M or 2 Phase method instead of Dual Simplex method ??
Concepts is very clear more than others videos😎
Mam agr change nhi kiya minimise ko maximise m or mene direct kiya cj-zj ke compare kiya to kya shi h method.......
Change krna hi padega!
Mam agar ham problem Ko dual me change kr ke simplex method se kare to ans same aayega kya ??? Please reply mam
Deepu Giri Goswami, if you solve a Primal Problem directly with simplex method or convert it to Dual Problem and then solve it with simplex method, the answer will be same in both the cases. Hope it will help!!!
Thank u so much mam😊
Ahkam Shahzad, you're welcome! Keep sharing the videos!
@@DrVineetaNegiMaths yes mam i will share.
Madam if it is asked that use duality to solve the primal maximization problem ?
then in dual first I will convert it to minimization then for solving it in simplex method i will convert it to maximization problem ,then as before solve it .Am I correct mam?
Yes
Thanks Mam...........
Mam mene u tube par dual ki jitni bhi video dekhi hai unme sabse acchi video aapki hai. Apne bahut acche se simplex or dual simplex me diffrence bataya.
[ Par Mam mera ek doubt hai..... Mam jo aapne Zj-Cj bataya hai mam uski jagah book me Cj-Zj likha hua hai . Mam me bahut confuse hu .Please reply kare.]
Thank u mam........HIT THE LIKE FOR MAM...
Sanjna Kaur, thanks for your kind words!
Sanjna, don't need to get confused, there is no difference! When you compute Zj-Cj you will get negative values that will be required to be converted into positive values whereas when you compute Cj-Zj you will get positive values that will be required to be converted into negative values. I hope it would help.
LPP graphical method, hope you will like it as well!
th-cam.com/video/Lr-LxHvnjQY/w-d-xo.html
Thanks mam
great warm up lecture. excellence. tq
Thanks, Gaurab! Please share:):):)
oh ek gdwali u tuber.. me to ji❤
By dual simplex method can we directly change the given LPP to dual and then solve it by simplx method. Is it also right method ma'am? Reply plz..
Renuka Rao, dual simplex method is altogether different than the simplex method. When you have to solve a problem with dual simplex method, it has to be solved with this method only, which you can find in this video.
Hope it will help!!
Please share with friends!
@@DrVineetaNegiMaths thankyou ma'am for clarifying it.
Some error present.....
Thank you so much ,,,, best video's
If Xb me 2 same negative values ho to kise lena hoga key row me?
Ma'am the way teach it's very easy to understand. I have one request can you please explain PERT and CPM method.
Ravindra Zodape, thank you very much! I'll try to make videos on PERT-CPM.
Mam, if there is equal to sign in constraints, give then how to proceed
As, eg ( min z = 2x1 +x2
Stc. = 3x1 + x2 = 3
With dual method
For equal to sign take both less than and greater than sign.Now u r having two equations and solve in a same manner.
Vry nice teaching ,mam
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maam book me (cj-zj) likha hua hai pr apne (zj-cj) kra hai agr duno me se koi bhi krte hai to answer me farak aayega?
Abhilash, don't need to get confused, there is no difference! When you compute Zj-Cj you will get negative values that will be required to be converted into positive values whereas when you compute Cj-Zj you will get positive values that will be required to be converted into negative values. I hope it would help.
I don't have words, how can I thank you 😊😊
Ma'am in first iteration you said that -3/5 is minimum but -1 is minimum compared to -3/5. If sign is not considered then 3/5 is minimum in all four values
Thanks Mam.. You explained very well
Vikas, glad you liked the explanation! Thanks for subscribing.
Best teaching mam apne phd khaha se kiya
Madam Use duality to solve the Lpp & use dual simplex method to solve the Lpp ,both are same or different ?
I also have the same question, have u got the answer
Nyc explanations mam 😘
Thanks mam its very helpful
My pleasure, Khudsiya Parveen! Glad you found it helpful:):):)
Thanks ma'am..
loved the way you teach
Niljit Movie, thanks for your comment. It means a lot to me. Please share and help other students as well.
This video is remarkable.
Thank you, Preeti! I appreciate your comment.
What happens if xb values are same??(-1,-1,-1)
And
Second if cj-zj all are +ve but xb have a negative value??
Ma'am.... can't this be solved by "big M method" or by "2-phase method".....
You can solve it,but in theoretical question if method is mentioned then you will do it by the specific method
okay..mam
Great effort mam keep continuing ...Full support
Sanjo S, thanks for your nice words! Keep Learning, Keep Sharing, Keep Growing.
some are saying dual simplex is for minimization some are saying its for maximizartion what is it for can anyone clarify please?
Thanks you mam...
What if xb's values are ties
Means two values are same
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Very nice 👌
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Good evening mam
Mam your teaching is very good but I have confusion somewhere.
1) we always find Cj - Zj, but you find Zj- Cj. Why??
2) you find max of -10,-2 and -15, so in this -2 is greater so why did you take -15?
These doubts are there, and because of this I m not able to understand the concept. Can you plg help me to solve this confusion?
X2,x4 zero kyun hua mam please reply 🙏
Puja, x1 and x3 are the only Basic Variables in the last simplex table at 21:08, so the value (cost) of x2 and x4 is taken as zero. Hope it helps!
Why not max ratio in dual simplex?
best video.
Thanks for your nice words.
What is the advantage to solve LPP using dual simplex method?
1) Understanding the dual problem leads to specialized algorithms for some important classes of linear programming problems.
2) The dual can be useful for sensitivity analysis.
3) Sometimes finding an initial feasible solution to the dual is much easier takes less time than finding one for the primal.
4) Sometimes the dual is just easier to solve.
Join my Free LIve Class on Unacademy- unacademy.com/class/class-5-linear-integral-equations-important-topics-part-v/WCL20K64
@@DrVineetaNegiMaths thank you
@@learningmathswithconcepts7203
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Thanks a lot mam
Most welcome, Preeti! Please follow me on Unacademy.
Thanks mam
vvvvvvv nice maam
Thanks
Thank you madem
Nisar Kakar, my pleasure! Please share===>>>
Best
KARMRAJ YADAV, THANKS!
nice
Thanks
mem