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I love this, but is there any way to do this WITHOUT a calculator? I’m in precalculus and we’re not allowed to have one… I’m struggling

thank you dr d!

I'm really appreciate you , you're content is very helpful

9 years later and you are still a life saver madam

the values of ranges of constraints are not correct. Excel shows the correct values. While calculating the range of 'h' we also need to take into consideration the restrictions put by remaining constraints.

No pilot would be interested in this. This examples solves for where an airplane would go given wind speed and direction and aircraft heading and airspeed. But, the actual aircraft problem is to find the crab angle and ground speed given a desired ground track. That is, the aircraft problem is: given the departure point and desired arrival point which heading do I point the aircraft in, and what is the ground speed. This example merely shows where an aircraft would go given a aircraft heading and airspeed and a wind direction and speed. This example does not solve how do I get from fixed A and B given wind speed and direction and the fixed points. The problem can be solved using the law of sines twice rather than the law of cosines and is somewhat more complex than this irrelevant solution (?). Pilots are interested in how to get from A to B, not where the wind will blow them if they don't make any sort of crab angle correction.

-10/10 baddie

Does the "simplex method" sound like a misnome to anyone?

This bring back memories from my Intro to Quantitative Methods One and Operations Research courses when I was a Business student at Saint Mary's University during the mid 1990s.

nice

Too fast don't understand 😢

My professor spent 1h30 minutes on a 7 minutes problem🤦‍♂️

Dr Math, can you please please solve a problem where one of our constraints is negative ont he right side? For example: Min 3x1+x2 Constraints: x1+x2<=5 2x1+x2>=8 x1,x2>=0 Please if anyone can solve this!

Question: Before reading through the entire question, how can you assume that there are only 2 types of drinks (A and B)? What if there were 3 types?

its important showing every step

With all due respect, some people do not know how to teach but that lady definitely knows. Straight to the point with the application, no confusions and very clear

Watching it 9hrs before exam. Wish me luck

Wow😍

Can you solve this with min? and where we have >= in some parts instead of <=?

Is this how you will teach yourself when no idea about it

it is working, nut i have no idea how it works

clearest explanation in nearly 8 minutes! thanks!

No clear ... to long steps betwee😮n ... be carefull ... I'm trying normal teach ...

Dr D, you are a real treasure!

the thing i m gonna say may not be relative to the course. ur voice is close to my grandma, it s soft and warm, i never thought i can hear it on youtube. thanks

Amazing!

I learned more about how to do this method in 7 minutes and 43 seconds than I did in an hour of hand-wavy lectures. Thank you very much.

,would you help me some questions?

how did you get 31.1795?

Great Explanation !!

You ma’am, have just earned yourself a subscription

Got a question, what if one of the contraisnt doesnt have an x1 or x2

God bless

Ma you’re just too smart and plain,I give you your flowers 😁

This was very helpful. Thank you!

Ma'am your video made this sum so simple to understand thanks a bunch 🤗

thanks buddy

I love u

7 years ago you posted this and it helped a student in 2023 so thank you so much miss 🤍

abominio

Multiple mistakes in this video

Good

Good explanation! It helped me to understand. But what if the last row has two equal negative numbers? What column would I choose to select the pivot?

you saved my ass. Big ups dawg

I hope this women is doing well. Thank you!

This is an extremely clear explanation, but there is a MISTAKE at 6:25 where you mistakenly divided by 3 instead of 4, getting 20/51 instead of 20/68=5/17. It seems spectacular to me that half a million people watched this video and not a single one bothered to check, so I might be wrong, please point out my mistake if that's the case.

Thank you for your explanation. 🙏. God bless you.

This is the first time i understood instead of repeating the method over and over again our professor is really good and he explains great but the method he used to calculate was somehow complex ......and instead of that....i understood the row operations here best just ......thank you ... This'll help me very much tomorrow in exams

Worst video ever💀

thank you