0-1 Binary Constraints | Integer Linear Programming | Examples - Part 1

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

[willhughes]

So glad people like you exist. 2 hours of lecture only for a 5 minute video to give a better explanation.

[chobots]

Literally more helpful than my lecturer, i spent 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

[hmodalzubidi]

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 Youtube.

[lanetolsunbora]

thank you so much mister. you're doing a great work for people like myself who can't pay for tutors.

[innocentsimukonda]

JE is the 🐐 couldn't have cleared stats without his tutorial videos, and I'm going to clear this one too 🙏🏿

[lois.]

Thank you for being a life saver for my upcoming exam!

[giovannifuentes]

Very helpful thank you! I wish you had more videos on Linear Programming as im taking Operations Research 1.

[joyceassad]

Man … YOU ARE JUST AWESOME!! NONE LIKE YOU!! THANKS A MILLLLION

[mdabdulalim]

Just an awesome video. Very Informative.

[ymckaya]

I have done a small part of my preliminary core exam thanks to this video. thank you!

[ello-isa]

Great explanation and helpful video. Thank you, Joshua

[emma]

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!

[akshayjaiswal]

abstract is very useful, saved lot of time

[Gribixx]

This is such a helpful video! Thank you so much for sharing!!

[amitkumar-ipyv]

Awesome video Joshua.best wishes from India.

[thkpcsp]

very useful, well explained. Thank You!

[emmanuelmark]

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.

[ehecatl]

excellent, wonderfull !! very smart of you

[mattreece]

This stuff seems so confusing but really is very logical, so interesting, and great teaching Joshua!

[ayatelnabawy]

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 ?