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.
The simplest explanation ever. It covers the fundamentals needed to understand the model, whereas my prof confuses with symbols and no definition/explanation.
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.
Great explain sir. I was impressed with how clearly you explained it in less than 7 minutes. This is the hard part, now putting this into a solver is the simple part.
Thank you so much.This is so clear and clean.I am struggling hard to solve the transportation problem and this made me feel it's is so easy.thaks a lot for this work you did
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.
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.
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.
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.
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
True, my lecture is going on and i am listening to this.
Explained in a 6minute video that took my Lecturer a whole week. Thanks
10/10 explanation, very simple clear voice love it
AldosWorld TV lmao
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.
The simplest explanation ever. It covers the fundamentals needed to understand the model, whereas my prof confuses with symbols and no definition/explanation.
It's just 6:40 minutes but it covers all the information I need. Love this. Thank you so much
Thank you so much for summarising a 1 hour lecture so beautifully in a 6 minute video! Best explanation in the simplest way possible!
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.
Passed my math modeling final because of this dude.
Mr Joshua you are a life saver God bless you my African brother !!!!
You helped me pass my class with an A+. Thank you so much!!
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!
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!!
WOW , just less than a minute in, and I appreciate the clarity of voice and explanations!!!!! Well done
you've covered a lot in less than 7 minutes. Thanks.
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.
You just saved my life. Thank you for the simplified and detailed explanation. Look forward to more videos from you!
GOD BLESS YOU. I have a project proposal due in 2 days and now I know exactly how to model the problem. Thank you!
Joshua - thanks so much for this, and for all your superb videos. You explain so clearly and it's incredibly helpful.
Simple, clear, and concise. Thanks, Joshua!
Super helpful, thanks!!!!! Beats my hours long online lectures that im paying thousands to attend!
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.
You are talented in simplifying these topics
Seriously, so clear and concise, thank you so much!
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...
Great video!!!! Shouldn't the dummy plant have Big M for shipping cost to deter its being assigned?
You're right. It should.
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.
thank you! The professor only gave the solution but no explanation
Thanks for posting, really helping me out for finals!
Your explanation is just amazing 👍I wish you were my professor...
Thanks a lot brother
Like your explanation!!! Makes me understand the concept in just 6.40 minutes.
BEST VIDEO EVER! It made it so simple to understand.
Glad it helped!
I gotta say, you really saved my time and brain effort. Kudos!
Great explain sir. I was impressed with how clearly you explained it in less than 7 minutes. This is the hard part, now putting this into a solver is the simple part.
Very clear explanation with good visuals. Liked
Thanks for liking
I wish you're my professor.. You will be the best professor of the course.. My prof sucks..
You are a saviour, Joshua
Simple, Clear and concise. Thank you❤️
You're welcome, Lauren.
Thank you so much.This is so clear and clean.I am struggling hard to solve the transportation problem and this made me feel it's is so easy.thaks a lot for this work you did
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.
You made it as simple as possible. you are good!!!
thanks man. if only RUclips gives diplomas, i would not go waste my time in college for dummy certificate.
Thank you so much! This video help me to pass the test 😊
Hi Joshua..I must say you are doing fabulous job
mans doing gods work
Very well done! Concise and objective.
Thank you! I feel a lot better about my upcoming test, thanks to you!
Wow incredible man 👍👍👍👍
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.
You're saving my life man!!!!
Saaaaaaaame
Same
Thank you so much sir for explaining in such a simple way.
thank you very much for such clear explanation.
wow!! this helped me so much in my revision for my exams :D
Thank you from a distanced learner bc of quarantine
Amazing video! Saving me for my midterm coming up!! You are the best!! You helped me for stats too!! Cheers man, thank you!!
What a expalanation it was very clear wish my teacher will teach like this
Really Good Stuff. I enjoy all of your videos. Wish my professor broke it down like this
as always great explanation brother, thank you!
You're welcome, Aram.
Explained like a Lion🦁
Interesting video. Can you tell me how you can apply your LP to the Vogel's Approximation Method or the Least Cost Cell method?
You're a savior bro!
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
“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.
That was really helpful. Thanks for making such a nice video. Thanks again Sir.
fantastic brother, you explained that beautifully.
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
very clear and understandable
wow............ you are God sent, thank you
Thank you so much. This really helped!
Thanks for the smooth presentation, also very informative
You're an awesome teacher!
Thank you
You make my exam much easier
Hey Josh what program are you using for your video? It's very well done!
Excellent and clear expression,
Thanks, Joshua. Great explanations.
Great video! Made everything simple. Keep producing great content!
THANK YOU SIR. IT WAS REALLY VERY HELPFUL TO ME.....
Just Excellent !!! Bravo!
You just saved me.... thank you very much
Thanks. That was definitely worth the time.
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.
Could you please let me know which method have you used in this video, Northwest, Minimum Cost or Vogel's?
Thanks
Great presentation! Thanks.
Incredible 👌🏾 thank you 😊
You are a star mate!. thank you.
You are a genius!!!
So easy so smooth ,,, thank you
Thank you very much Joshua!
great explanation!
This was incredibly helpful
you made a great video! Thanks for your effort!
If demand is equal to supply then what will be the inequality sign in constraints?
Amazing and simple. Thank you!
great job, thank you so
much
usually I'm not leaving comments in RUclips videos. But, you really worth likes, share & subscribe. 👍 great explanation; thanks man
AWESOME! explanation. thank you for making this make sense 😊
great video!! In the minute 5:37 there is a typo for the Xd3 dummy variable other than that I think it is an awesome video.
Great explanation! Thanks. 👍
Great explanation thank you very much!!!
Could this get any simpler? I think not. Thanks man!