0-1 Binary Constraints | Integer Linear Programming | Examples - Part 1
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- Опубліковано 8 сер 2016
- This video shows how to formulate relational/logical constraints using binary or 0-1 integer variables:
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**Mutually Exclusive
**Multiple Choice
**Contingent or Conditional
**Co-requisite
**k out of n
Part 2: • 0-1 Binary Constraints...
Capital Budgeting Integer LP : • Binary Integer LP - Ca...
So glad people like you exist. 2 hours of lecture only for a 5 minute video to give a better explanation.
thank you so much mister. you're doing a great work for people like myself who can't pay for tutors.
Such an amazing video. I thought that this video would not help me but I was wrong. it does really more than I saw in hours searching in UA-cam.
I have done a small part of my preliminary core exam thanks to this video. thank you!
JE is the 🐐 couldn't have cleared stats without his tutorial videos, and I'm going to clear this one too 🙏🏿
Very helpful thank you! I wish you had more videos on Linear Programming as im taking Operations Research 1.
Man … YOU ARE JUST AWESOME!! NONE LIKE YOU!! THANKS A MILLLLION
Thank you for being a life saver for my upcoming exam!
+Joshua Emmanuel= the real mvp
This is such a helpful video! Thank you so much for sharing!!
Great explanation and helpful video. Thank you, Joshua
Literally more helpful than my lecturer, i spent soooooo many hours on this and you gave me the answer in minutes. Subscribed just cos of that u have no idea how much you helped
Glad to hear. Thanks for dropping a note.
Awesome video Joshua.best wishes from India.
Just an awesome video. Very Informative.
very useful, well explained. Thank You!
You are excellent love from Turkey.
your videos are the best!!!
This is very helpful, thank you!
THIS IS EXCELLENT! Thanks!
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This is amazing. Thank you so much.
abstract is very useful, saved lot of time
Thanks... this is really helpful.
thank you sir! this was so helpful
Greetings from Colombia. Very useful
glad you made more
Thank you so much!
This stuff seems so confusing but really is very logical, so interesting, and great teaching Joshua!
THANKS MAN VERY USEFUL
amazing video!
God bless... thank you kindly
very goog job, thanks a lot
Tanks so much sir.
You are awesome dude!
thank u josh ur the man
Thank you, Sir!
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love from china! Thank you!
Thank you!
Thank you sir.
Thank You Bro!
Thanks sooooo much
Thank you
Thank you so much for this video! The only case I cannot figure out is if you select P1, you must select P2 AND P3. I've tried so many ways and can't figure it out!
I think I figured it out! x1 + 1 >= x2 + x3
2P1
Hello, for the conditional case (if project 4 is not selected, project 2 must not be selected), if we consider project 2 is a prerequisite course to project 2, then constraint should be: x4 >= x2...Can you explain why you say it is x2
x4 >= x2 is the same as x2
thank you :D
For "project 3 and 4 must be selected together" is x3+x4=2 also good instead of x3=x4.
Sure, if you must select each of them individually as well. It is however open to interpretation.
What I am suggesting here is that, if you select one, you must select the other. My emphasis is on "together"
@@joshemman thanks for the answer!
you rock
please sir, how do we solve a question if we have % as it constrain?
Give an example.
This small
electrical repair shop supplies two types of service. Customers bring in TVs,
videos, etc. that (1) require major repair or (2) minor repair. At present, the
shop has more business than it can handle so Tom Jones wants to prioritize the
work to be performed. The firm charges £25 per hour for major repairs and £10
per hour for minor repairs. The shop currently has two trained repair
engineers, who each work a 40-hour week. Tom Jones will not allow overtime, because it is expensive, and he has the
following requirements.
All repair work must generate at least £800 income per
week
Major repairs should form at least 60% of the weekly
work.
Minor repairs should form at least 30% of the weekly
work.
Formulate an LP
model for this problem in order to identify the revenue-maximizing combination
of the two types of work on a weekly basis.
tanks
Can you tell, which software you use to make these videos?
Designed in PowerPoint and recorded Camtasia Studio
Great work.
You should have a funding page
Thanks Shahzeb.
This small
electrical repair shop supplies two types of service. Customers bring in TVs,
videos, etc. that (1) require major repair or (2) minor repair. At present, the
shop has more business than it can handle so Tom Jones wants to prioritize the
work to be performed. The firm charges £25 per hour for major repairs and £10
per hour for minor repairs. The shop currently has two trained repair
engineers, who each work a 40-hour week. Tom Jones will not allow overtime, because it is expensive, and he has the
following requirements.
All repair work must generate at least £800 income per week
Major repairs should form at least 60% of the weekly work.
Minor repairs should form at least 30% of the weekly work.
question is to formulate an LP model for this problem in order to identify the revenue maximizing combination of the two types of work on a weekly basis.
Major ≥ 0.6(Major + Minor) or 0.4Major - 0.6Minor ≥ 0
Minor ≥ 0.3(Major + Minor) or -0.3Major + 0.7Minor ≥ 0
tanks so much Mr emmanuel.
am really having tough time with this topic LP.
Ma= hours of major repairs
Mi = hours of minor repairs
Max 25Ma + 10Mi
s.t.
25Ma + 10Mi ≥ 800
Ma + Mi ≤ 40
0.4Ma - 0.6Mi ≥ 0
-0.3Ma + 0.7Mi ≥ 0
Ma, Mi ≥ 0
please sir i need a video on CPM, am having issues understand the crashing process.
Thanks
@@joshemman Super awesome
This reminds me of discrete math🤣
At 3:07, the answer appears to be wrong. "Select P3 or P5, or both" = P3+P5 => 1.....both = 1+1=>2 doesn't work...maybe erase the "or both"?
I like how you used the word "appears". It appears to be right to me.😀
where is part 2 please?
Part 2: ua-cam.com/video/MO8uQnIch6I/v-deo.html
Thank you!
Thank you!