This video is only 6 minutes and 40 seconds long and yet I learned more from you than I did from my university lecturer. Incredible! Credit to you Joshua! Many thanks.
This Video is uploaded 7 Years back but still, your teaching methodology is way better than that of my professor at the university. Thank you so much for your explanations.
Congratulations Joshua for the content and the well-made framework !! Your video is a good example of how difficult explanations could be converted into easy ones...
Thankyou so much dear mentor Joshua your teaching strategy was surprising for me i got everything in this single lecture i was trying to find a lecture to clear my concepts about PL model you are the who helps me to finishing my topic .Thankyou so .Keep growing.
My model on my solver proved infeasible for your second solution when demand exceed supply. I used greater than or equal sign for the demand constraints and less than and equal sign for the supply constraints, then I got an optimal solution.
HI,I have a question.Is this one of the types of transportation problem?I mix the methods of the Transportation problem.For example I don't know that what is the difference between Northwest method and This.
Thanks so much for the tutorials. Joshua, I have a couple of questions for you: 1. Do you also have videos for solving Integer Linear Programming problems and showing how it's related to NP-Complete problems? 2. Do you also have videos for solving Linear Programming problems using Simplex approach? Again, thank you for the tutorials.
Are you a professor? If not you should be. I attend Missouri State University for my MBA and my professor is not even in the same ball park. Thanks for the video.
Thanks for the great video! How could I use this concept when the cost for each route(eg. 5,6,4,6,3,7 in your video) depends on the amount of item (xij)? I am wondering if the linear programming can be applied for the case where fundamental input data(cost in this case) is subject to change.
Unfortunately, no. The prices in an LP transportation problem must be fixed irrespective of volume. If the prices change with volume, it will no longer be a linear program.
@@joshemman Thanks for your kind reply. What model or method can I use for non-linear example? If there is one, It would be greatly appreciated if you can let me know the specific name of it with any kind of example.
@@강인수-t9n Non-linear programs (NLPs) are similar to linear programs in that they both contain algebraic functions and inequalities. The only difference is that linear programs contain only linear expressions such that if X and Y are decision variables, then XY or X^2 are invalid. In your case, if X = quantity and Y = Price, then total price XY is nonlinear. You can then solve it in Excel’s Solver by using the GRG Nonlinear method.
The simplest explanation ever. It covers the fundamentals needed to understand the model, whereas my prof confuses with symbols and no definition/explanation.
Fantastic videos Joshua. Thank you. Question: what if demand and supply are always equal (e.g., a package delivery network where all packages must get to their destinations), how might we minimize the cost of collecting the packages from (n) distribution centers and delivering them to (n) cross dock facilities. For bonus points, we have 3 different vehicle sizes (S, M, L) with different operating costs. The DCs have different quantities of packages to deliver to each cross-dock. As a result S sized vehicle may get full before the end of it's run and it may have been more efficient to send a M or L sized vehicle, etc. I'd love your perspective (or anyone here) on how to solve this riddle. Thank you in advance and keep the great videos coming.
great video joshua...however one doubt,.... if transporting from toronto to DC3 is unviable shouldn't the constraint added be XT3 >= an abonormally high figure ( instead of zero), so that Excel Solver rejects this option..pls guide
10/10 explanation, very simple clear voice love it
AldosWorld TV lmao
This video is only 6 minutes and 40 seconds long and yet I learned more from you than I did from my university lecturer. Incredible! Credit to you Joshua! Many thanks.
Quite literally!
same here!
Same
wish my professor explains like this
Wish my professor even explain anything rather than talk about his life.
me too hhaha !! my professor took 3 hours to explain this and I still didnt get it. this video saved me.
You helped me pass my class with an A+. Thank you so much!!
Explained in a 6minute video that took my Lecturer a whole week. Thanks
Joshua - thanks so much for this, and for all your superb videos. You explain so clearly and it's incredibly helpful.
Wow incredible man 👍👍👍👍
Brooooo!!!!!!. How are you this good? In 6 minutes I've covered a good section of a course. My lecturers don't come close.Keep up the good work!
You're saving my life man!!!!
Saaaaaaaame
Same
Thanks for posting, really helping me out for finals!
Wow, you are the best. I got an A on my exam thanks to your fantastic explanations. I need another A for my final. Thank you sooo much!!
This Video is uploaded 7 Years back but still, your teaching methodology is way better than that of my professor at the university. Thank you so much for your explanations.
thank you very much for such clear explanation.
Great video!!!! Shouldn't the dummy plant have Big M for shipping cost to deter its being assigned?
You're right. It should.
Your explanation is just amazing 👍I wish you were my professor...
Thanks a lot brother
Thank you so much. This really helped!
It's just 6:40 minutes but it covers all the information I need. Love this. Thank you so much
You just saved my life. Thank you for the simplified and detailed explanation. Look forward to more videos from you!
Seriously, so clear and concise, thank you so much!
great job, thank you so
much
very clear and understandable
as always great explanation brother, thank you!
You're welcome, Aram.
Thank you this so helpful
Congratulations Joshua for the content and the well-made framework !! Your video is a good example of how difficult explanations could be converted into easy ones...
Thankyou so much dear mentor Joshua your teaching strategy was surprising for me i got everything in this single lecture i was trying to find a lecture to clear my concepts about PL model you are the who helps me to finishing my topic .Thankyou so .Keep growing.
Glad to hear, Mr Globerus. All the best in your course.
“If you can't explain it to a six year old, you don't understand it yourself.”― Albert Einstein
From this video a six year old boy can learn.
Very well done! Concise and objective.
you've covered a lot in less than 7 minutes. Thanks.
My model on my solver proved infeasible for your second solution when demand exceed supply. I used greater than or equal sign for the demand constraints and less than and equal sign for the supply constraints, then I got an optimal solution.
Passed my math modeling final because of this dude.
That was really helpful. Thanks for making such a nice video. Thanks again Sir.
You are talented in simplifying these topics
HI,I have a question.Is this one of the types of transportation problem?I mix the methods of the Transportation problem.For example I don't know that what is the difference between Northwest method and This.
🐐
10/10, excelent
BEST VIDEO EVER! It made it so simple to understand.
Glad it helped!
mans doing gods work
Perfect. Thanks
My pleasure Svitlana
Like your explanation!!! Makes me understand the concept in just 6.40 minutes.
Very clear explanation with good visuals. Liked
Thanks for liking
Good explanation, doesn't beg for likes, good English ... Has God sent you to down here? be honest
Omg you are damn good at explaining..thanx..
THANK YOU!!!!
Thanks so much for the tutorials.
Joshua, I have a couple of questions for you:
1. Do you also have videos for solving Integer Linear Programming problems and showing how it's related to NP-Complete problems?
2. Do you also have videos for solving Linear Programming problems using Simplex approach?
Again, thank you for the tutorials.
+Kingsley Udeh
Sorry I don't have videos for those. My students only learn LP at introductory level.
+Joshua Emmanuel
Okay, thanks, Joshua
+Kingsley Udeh "Managerial Decision Modeling with spreadsheets" this book has it all, simplex, nonlinear, integer etc.
Lmai
wow!! this helped me so much in my revision for my exams :D
If demand is equal to supply then what will be the inequality sign in constraints?
Incredible 👌🏾 thank you 😊
Hi Joshua..I must say you are doing fabulous job
THANK YOU SIR. IT WAS REALLY VERY HELPFUL TO ME.....
Thank you from a distanced learner bc of quarantine
this is so nice, thank you
Thank you too!
You just saved me.... thank you very much
what do we have to do after making equations ?
I subscribed after watching this video!
Me too
Could you please let me know which method have you used in this video, Northwest, Minimum Cost or Vogel's?
Thanks
Short of words but Classic is all I can say
Yah it is best
Are you a professor? If not you should be. I attend Missouri State University for my MBA and my professor is not even in the same ball park. Thanks for the video.
Super helpful, thanks!!!!! Beats my hours long online lectures that im paying thousands to attend!
thanks man. if only RUclips gives diplomas, i would not go waste my time in college for dummy certificate.
thank you, god bless you
How to slove this problem in java
i did not understand the issue of dummy here.
I used the Excel Solver using the variables and constraints proposed, looking for the min and it came back with the exact same variables. Great video.
THANK YOU SO MUCH but i got a question in a case that the demand and the supply is the same in ur case 800 = 800 does it many any difference?
800 = 800 is fine since ≤ includes equality.
@@joshemmanthank you so much once again you are the best i hope you have an amazing day !!!!!!!!!!
@@MrMando-dk1vr 🙏
Mr Joshua you are a life saver God bless you my African brother !!!!
Thanks for the great video! How could I use this concept when the cost for each route(eg. 5,6,4,6,3,7 in your video) depends on the amount of item (xij)? I am wondering if the linear programming can be applied for the case where fundamental input data(cost in this case) is subject to change.
Unfortunately, no. The prices in an LP transportation problem must be fixed irrespective of volume.
If the prices change with volume, it will no longer be a linear program.
@@joshemman Thanks for your kind reply. What model or method can I use for non-linear example? If there is one, It would be greatly appreciated if you can let me know the specific name of it with any kind of example.
@@강인수-t9n Non-linear programs (NLPs) are similar to linear programs in that they both contain algebraic functions and inequalities. The only difference is that linear programs contain only linear expressions such that if X and Y are decision variables, then XY or X^2 are invalid. In your case, if X = quantity and Y = Price, then total price XY is nonlinear. You can then solve it in Excel’s Solver by using the GRG Nonlinear method.
I wish you're my professor.. You will be the best professor of the course.. My prof sucks..
Interesting video. Can you tell me how you can apply your LP to the Vogel's Approximation Method or the Least Cost Cell method?
Could this get any simpler? I think not. Thanks man!
Does anyone know where this linear equation was first formulated and by who?
fantastic brother, you explained that beautifully.
thank you! The professor only gave the solution but no explanation
awesome! Thx a lot!
The simplest explanation ever. It covers the fundamentals needed to understand the model, whereas my prof confuses with symbols and no definition/explanation.
You're a savior bro!
great explanation!
in java which frmula is used
wow............ you are God sent, thank you
Thank you so much sir for explaining in such a simple way.
Hey man, it's a great video. Have you made a part 2 and onward? Why don't you complete the whole model and show us the solution to the problem
Just Excellent !!! Bravo!
Great presentation! Thanks.
great video my guy thank you
Thank you so much for summarising a 1 hour lecture so beautifully in a 6 minute video! Best explanation in the simplest way possible!
Fantastic videos Joshua. Thank you.
Question: what if demand and supply are always equal (e.g., a package delivery network where all packages must get to their destinations), how might we minimize the cost of collecting the packages from (n) distribution centers and delivering them to (n) cross dock facilities. For bonus points, we have 3 different vehicle sizes (S, M, L) with different operating costs. The DCs have different quantities of packages to deliver to each cross-dock. As a result S sized vehicle may get full before the end of it's run and it may have been more efficient to send a M or L sized vehicle, etc.
I'd love your perspective (or anyone here) on how to solve this riddle.
Thank you in advance and keep the great videos coming.
Hey Josh what program are you using for your video? It's very well done!
WOW, this video was so clear and concise that it made me feel stupid for ever struggling with this at all. You are a great teacher. Instant sub.
I gotta say, you really saved my time and brain effort. Kudos!
What a expalanation it was very clear wish my teacher will teach like this
3 hours of lecture or this video
Great explanation
Thank you very much..
:)
WOW , just less than a minute in, and I appreciate the clarity of voice and explanations!!!!! Well done
Explained like a Lion🦁
Really Good Stuff. I enjoy all of your videos. Wish my professor broke it down like this
Thanks!
Thank you! Much appreciated.😀
Amazing video! Saving me for my midterm coming up!! You are the best!! You helped me for stats too!! Cheers man, thank you!!
great video joshua...however one doubt,.... if transporting from toronto to DC3 is unviable shouldn't the constraint added be XT3 >= an abonormally high figure ( instead of zero), so that Excel Solver rejects this option..pls guide
Yes. You can make the coefficient of XT3 very large in the objective function so Excel can make it zero. Or, better, you can do it yourself.
We use management since to solve this put after do all of drowning and finding LP model
Great video! Made everything simple. Keep producing great content!