Hi all! Please post comments, questions and anything else on your mind in the comment section! Also, don’t forget to LIKE, THUMBS UP, and SUBSCRIBE! I’d appreciate it greatly :)
If only I had found this 3 weeks ago. Gained so much w/n the first few minutes of this video than in a 50 minute lecture. Now I just may pass my exam tomorrow after all!! Thank you sooooo much!!
thank you so much for this, I am doing this stochastic processes class and got to the Markov chains, the book is using a great deal of this material, I can't thank you enough.
Keep the linear algebra stuff coming! I don't have the class available at my school but I've been reading some books, and your videos would really help a lot!
Hey Patrick. I like the way that you approach this problem with putting in the values of 1 then simplifying the surroundings. Could this also be used for complicated problems as well and does it always work? Also, is there a certain formula that can be used to find the inverse matrix of a 3x3?
Easy concept, just a massive pain in the ass to compute matrices by hand (especially inverses). Either way, nice video - organization and showing all your steps for problems like these is extremely helpful for those learning the material.
Thanks a lot, Patrick! Now I understand this process better. Who the heck would want to find the inverse multiplying all the elementary/elimination matrices? Doing that feels like a death sentence. Finding L--the inverse of E for A = LU--was the same as undergoing that sentence!!
I was just wondering, instead of getting those fractions, isn't it possible to replace that step (the one that gave you the fractions) by -2 x R3 + R2 -> R2, which gives (0 , -1, 0 | 1 , 2 , -2 ) for row 2? And then do -1x R2 -> R2?
a while back in i learned that there is a way to determine if a matrix has an inverse...will that be covered too? i kind of forgot how to do it. also can you give a real world example doesn't have to be complicated, just good enough to give the brain a reason to remember matrices. thank you.
Good day, is the Gauss-Jordan method in finding the inverse of a matrix is applicable if you have an n x n matrix? What I mean is if you have a 4 x 4 or even higher dimensions of matrix?
Why do you have to multiply 3/7 by row 3. Could we not just do 3/7+Row1 since row 3 is 1 anyways? Is there a reason that we have to mutiply by row3 before we add row 1? I guess I just figured that we would come out with the same result either way.
Sarah Buescher I think it's because if you just did 3/7 + R1, you'd have to add 3/7 to all of R1 meaning you would change the 1 that you already have on the top left to 10/7, and the 0 in the first row second column to 3/7
THANK U SO MUCH!!!!!!! i have been watched a lot a videos how to do it method, but i didn´t catch it. So i saw this video and i was... (wtf?, that is so easy)... So... thanks again.... You have another subscriber :´)
Thanks for the video.. I understood the method from here. But one thing, I could solve it without using any fractional value.. the calculation is less cumbersome that way.
Can anyone assist to try this problem? The equilibrium level of output Y.C.M satisfies the condition: Y=C+I+G-M C= aY + b M= mY + M* Using Matrix AX = B, Use crammer's rule to find equilibrium level of Y
Thankfully I didn't have to take linear algebra. It's interesting though. I guess it's more for math and computer science people, or maybe some types of engineering.
Hi all! Please post comments, questions and anything else on your mind in the comment section! Also, don’t forget to LIKE, THUMBS UP, and SUBSCRIBE! I’d appreciate it greatly :)
ABSOLUTELY AMAZING. Making studying at midnight for an 8 am test not so horrible! Thanks so much
me too. 5 years later
@@ryanrinn4041 me too, 2 months later
@@AbuBakar-hg8rw good luck!!
me too, 2 months later
@@anastashia16 me too 10 months later
If only I had found this 3 weeks ago. Gained so much w/n the first few minutes of this video than in a 50 minute lecture. Now I just may pass my exam tomorrow after all!! Thank you sooooo much!!
seriously they way u teach is totally awesome, im in love with your videos . :-) :-) :-) :-) :-) :-)
0:38 sec . you sacred the hell out of me patrick .. :D
but the topic is well learned at the end of the day (y)
same here I litteraly leaped from my chair lol
I was playing this video thru my guitar amp (how I listen to music). Needless to say, I thought it broke my amp for a second!!! :')
God bless you Patrick. You are the best.
I kind of love you. I just started Linear Algebra and this is so freaking helpful.
all of the above, for sure. super duper useful stuff
You deserve a subscription due to the detail steps of each problem you solve
give this man a medal!
he already has a lot
+Cleo Manloloyo who is he ? where does ve work or what does he do?
I mean he needs a special one
u are the best...your tutorials made me got 100% on my integration test...YOU ARE THE BEST. ..
Bro you deserve a shrine! Thank you so much this video helped a lot.
Superb! been watching your videos since 1st year of college ! better than my teacher
thank you so much for this, I am doing this stochastic processes class and got to the Markov chains, the book is using a great deal of this material, I can't thank you enough.
You explain this method really clearly. I am really grateful for your explanation!
Keep the linear algebra stuff coming! I don't have the class available at my school but I've been reading some books, and your videos would really help a lot!
You are great. The way you teach very professional
Just wanted to drop by and say thanks.
Thanks! :)
And your tutorials are super helpful.
Patrick a BIG THANK YOU to you. You are my favorite math teacher.
I really owe my engineering degree to you. Thanks a bunch :)
thanks a brunch
It's totally crystal clear to me,,,,, Thankyou
i will try my best :)
You approached this really well, Patrick! I like the method you use.
Thanks a lot for uploading this video. You helped me to prepare myself for a test.
Thank you so much. I took Math 1 at Uni and my teacher is just bad at teaching. Ofc my exam is tomorrow 😅 wish me luck y'all.
Hey Patrick. I like the way that you approach this problem with putting in the values of 1 then simplifying the surroundings. Could this also be used for complicated problems as well and does it always work? Also, is there a certain formula that can be used to find the inverse matrix of a 3x3?
Easy concept, just a massive pain in the ass to compute matrices by hand (especially inverses). Either way, nice video - organization and showing all your steps for problems like these is extremely helpful for those learning the material.
Thanks a lot, Patrick!
Now I understand this process better. Who the heck would want to find the inverse multiplying all the elementary/elimination matrices? Doing that feels like a death sentence. Finding L--the inverse of E for A = LU--was the same as undergoing that sentence!!
i am sooo happy i found this vids thanks alot
Awesome!!! U really make sure we understand each and every concept that u teach. Excellent. Thank u so much...
facing this matrix for final tomorrow thanks!
We do inverse 3x3 matrices in my FP2 unit and this method rocks compared to the mess of the method we're taught!
I was just wondering, instead of getting those fractions, isn't it possible to replace that step (the one that gave you the fractions) by -2 x R3 + R2 -> R2, which gives (0 , -1, 0 | 1 , 2 , -2 ) for row 2? And then do -1x R2 -> R2?
a while back in i learned that there is a way to determine if a matrix has an inverse...will that be covered too?
i kind of forgot how to do it.
also can you give a real world example doesn't have to be complicated, just good enough to give the brain a reason to remember matrices.
thank you.
At 4:33, why didn't you just R2 - 2*R3 = R2?
That looks much easier to me, but I want to confirm that it wont violate any rules.
+Jomon well, that can be done too! and after that you just need to multiply the second row with -1
+Jomon Lol yes, thats what I did, much easier, no rules violated
Yeah I thought the same thing
This is the method our instructor used to show to get the inverse. I do prefer the other way you shown.
I think I can solve this type of problems in my upcomming exam in 3 hours
At 04:25 rather than taking fraction, you could have done "2R3-R2=R2" for making the "7 of row-2 & column-2=1". Thank you.
You make my life so easy, You are the best. Thank you!
ahhh this video helps me understand this so much better, thanks dude
Thanks so much, your videos are the best and just swing it once it is always easy to recall it. Good job!
In a 3x3 matrice and R1 begins with a negative number; do you convert that number to a positive one first?
Thanks for that lucid explanation. Succinct and to the point.
this is totally helping me in my linear algebra class. thanks!
Good day, is the Gauss-Jordan method in finding the inverse of a matrix is applicable if you have an n x n matrix? What I mean is if you have a 4 x 4 or even higher dimensions of matrix?
What an amazing explanation, thanks
Thanks, really helped me figure out this stuff, no thanks to my lecturer's abstract notes...
Why do you have to multiply 3/7 by row 3. Could we not just do 3/7+Row1 since row 3 is 1 anyways? Is there a reason that we have to mutiply by row3 before we add row 1? I guess I just figured that we would come out with the same result either way.
Sarah Buescher I think it's because if you just did 3/7 + R1, you'd have to add 3/7 to all of R1 meaning you would change the 1 that you already have on the top left to 10/7, and the 0 in the first row second column to 3/7
Can we multiply the row that is changing instead of the row that is unchanged?
Thanks. Just the refresher I needed.
thanks so much i watch your videos and have a much better understanding you're awesome!!
Can this be used on all matrices or do you have to start off differently?
I thought this one is elementary row operation? Or is it just the same as Gauss-Jordan method?
you are actually the best!!!!!!!!!!
THANK U SO MUCH!!!!!!! i have been watched a lot a videos how to do it method, but i didn´t catch it. So i saw this video and i was... (wtf?, that is so easy)... So... thanks again.... You have another subscriber :´)
Thank you very much! :) Very nice explained.
Can we see some videos on introduction to Differential Geometry?
fucking legend man, still helpful in 2024
What if u do r2-r1 ? it gives u your new r1 or r2 ?
Thank you so much, this is helped me a lot.
how about if i m not going to swap row 1 and 2, can i still got the same answer?
if i approach the calculations by different row operations and the answer comes different is it normal? :3
my teacher was used inverse of matrix. and then find inverse of matrix. when after we find inverse of matrix how can we find roots
thanks u r really a true genius
You make wanna do maths everyday :) impressive
how do you find out if the matrix has an inverse ?
Thank you so much, Sir...!
Nice explanation, thanks alot :)
very good and clear , thanks
bundle Thanks sir it was very helpful
It was great !
thanks for sharing.
thankyou so much! this really help me
Thanks for the video.. I understood the method from here. But one thing, I could solve it without using any fractional value.. the calculation is less cumbersome that way.
yep, there are many ways to solve these
thank you for your help but why are you left hadned
Because he is.
This was great, thanks for the explanations.....I hated Pre-Cal until now,..now I just don't like it...lol
no you da real mvp
why did you use an example with fractions in an instructional video?
Thanks for the explanation... Nice and Simple... :)
I love u😭 u r a heroo😭
how to find inverse of a 2x3 matrix?
Thank You So much!!! Awesome teacher
any way a hell lotta thanks to you buddy
I don't understand the purpose of this method when finding the cofactor and determinant is a much easier way to find the inverse.
thanks alot patrick!!
how to multiply by rhs vector
Can i know what is his true job?
Can anyone assist to try this problem?
The equilibrium level of output Y.C.M satisfies the condition: Y=C+I+G-M
C= aY + b
M= mY + M*
Using Matrix AX = B,
Use crammer's rule to find equilibrium level of Y
Why would you ever want to do this by hand?
thanks man
patrick
Thank you. it was helpful
You should be my teacher :) good job (y)
You're the best.
Thanks Bro! really appreciate it :D :)
Can you please do the LU factorization plzzzzzzzzzzzzzzzzzz
So I got the identity matrix on the left side, but my inverse of the matrix is different than yours.. So imma go cry now
Thankfully I didn't have to take linear algebra. It's interesting though. I guess it's more for math and computer science people, or maybe some types of engineering.
great effort, it's appreciated :)
in short we just need to do row reduced echelon form
hai, can u teach me how to solve when the matrix have unkwon eg [1 2 -1 3]... please
[2 -1 k 1]
[-1 1 4 0]
You know math sucks when patrick doesnt even want to do it