2.9 Strassens Matrix Multiplication

Simple Matrix Multiplication Method
Divide and Conquer Method
Strassen's Matrix Multiplication Method
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[@gabrielfitzpatrick484]

This man is the Bob Ross of Algorithms. Just straight up vibing, providing the easiest to follow explanations at a pleasant pace. My own Analysis of Algorithms professor's notes look like ancient forgotten text compared to his. I cannot thank you enough Abdul Bari.

[@prototype18]

Thanks man, because of you I got to know who Bob Ross is !!

[@sooryanshsingh2957]

I was getting a very soothing vibes while watching the video and I was trying to reconcile when before I had experienced such bliss.. Because of you, it clicked almost immediately that he is indeed Bob Ross. It is a quite hilarious yet perfect comparison. XD

[@Shantisingh-tz5sr]

No doubt! He is God Of Algorithms

[@Rwko.]

@@prototype18 You just learnt about another legend, other than Abdul Bari ofc.

[@noonenooo2843]

My professor literally copies all his examples and notes, and yet no one can understand him, but Mr. Abdul Bari's explanations only needs to be heard once and all the concepts get cleared. Thank you for all of this Sir.

[@yashdeepsingh1519]

same lmao

[@arjunparihar2964]

Your teacher is also putting all efforts but at that time you are not put all your efforts to understand ,but at exam time you putting efforts that why you understand better all these topics are in Horowitz Sahani ,Bari is good teacher .

[@shobanherbert3786]

Which college?

[@udaykiran2427]

Those are book examples

[@piyushmeshram6772]

Happy Teachers Day Sir. You are the Best Teacher of my entire life...

[@ashokreddy2982]

Did u know what u are saying 😂 He's just a best teacher for Your studies not your whole life

[@dexdexxi3364]

@@ashokreddy2982 ?

[@AnandKumar-hi6by]

@@ashokreddy2982 respect the sentiments man , sarcasm and logic should not be applied everywhere :)

[@negus5465]

@@AnandKumar-hi6by exactly!. Abdul bari sir is good🔥

[@naseer_alam57]

@@AnandKumar-hi6by u r r8

[@aniketmishra9265]

watch at 1.5, thank me later. And this guy is so underrated, I'ma promote him in my college :')

[@catlord69]

i tried 1.75 at first, but that was too fast, but speeding up is certainly a great idea :D

[@asdfghjkl1770]

me : 2x amazing!

[@okishan]

2x*

[@swapnilundage6676]

@@asdfghjkl1770 same

[@hmsingh2321]

20x

[@irock2382]

He deserves much more recognition than this! Please refer him to your batch mates so that this can be appreciated at his worth!

[@benjaminrichards4709]

19:44 "if you can find out any faster method for multiplying two matrices then that will be better for humanity "

[@abdul_bari]

😊

[@mlworks]

Never understood, if that was Sarcasm, but I am laughing out loud :)

[@pmz558]

@@mlworks it was, it is the only practical one out there from the looks of it on the web

[@abhishekvrm2777]

@@abdul_bari Sir please nmake playlist for Java

[@mayankkholia]

Lol

[@anshikaguptashorts]

sir just loved your approach.You cleared the concept of matrix multiplication..then you did the same with divide and conquere and then you told how normal multiplication is better because both have same time complexity but different space complexity..and finally you told how strassen reduced the time complexity from n^3 to n^2.81.Just loved it!

[@jimin7035]

Thank you for awesome lecture, from South Korea

[@namjoonsbrokewife159]

Jimin i pabo XD

[@shubhiagarwal9592]

@@namjoonsbrokewife159 Jimin , you got no jams! :P

[@Sky-nt1hy]

인 정

[@nandanbanerji8309]

I am also a faculty at a University, but I loved your explanation and always you inspire in my teaching. Many many thanks Prof. Bari.

[@jessesinger4790]

Pretty crazy that a 0.19 reduction in exponents is so good. Assume n = 1000, then we're talking a billion operations compared with approx 287 million operations!!! that's very significant

[@bonniehines956]

Looked at like 4 other videos on this algorithm. I finally got it after this one. Thank you!

[@itzcs1861]

after listen to my professor class partially i thought this would be complex but you made it so simple. you'r teaching skills are excellent.

[@anilpank]

I was reading the same topic in Introductions to Algorithms book. Your explanation is much better than the explanation in the book.

[@dharmavarapuambicasatyasri7763]

I'm heartly wishing u a happy teachers to the best teacher ever in the world...u should be given some award for doing this job greatly... thank u soo much sirr🙏🙏

[@roaadahy5379]

Thanks from Egypt!

[@pmz558]

Oh ancient pharaoh what has brought you here

[@venomfu007]

@@pmz558 Said Cleopatra to Sambit Patra

[@wisdombeats8950]

Good one guys.​@@venomfu007

[@ryank1956]

Why don'y my professors watch youTube to learn how to teach. Great job on all you videos!! Thank You, so helpful

[@nasibehnourbakhshnia4890]

Dear Mr. Bari, Thanks so so much for your amazing videos. You explain things in a clear way and make things easy to understand. Thanks a lot.

[@esraelbizuneh9756]

you are best teacher Ihave ever seen//love from ethiopia thanks lot

[@thequeenziana]

Sir you saved me before my midterms ! You are a life saver!!

[@abdulrhmanmagdy7591]

+1

[@srijitanitamajumdar5904]

You are a boon the CS mankind, Sir! ☺ Thank you for everything!

[@Indumathishalewar]

Really helpful for all the students who are writing sem exams at present 👍

[@faizpathan7247]

Rajkumari Indumati ji chota Bheem kidhar hai

[@faizpathan7247]

Rajkumari Indumati ji chota Bheem kidhar hai

[@saivishwanath958]

21:00 For Strassen's method

[@supamdeepbains5172]

Thank you for ur lecture I'm from Saturn we watch ur tutorials there helps a lot in school

[@psycho.panther5121]

Please take this the right way, I love how you explain it like I am 5. So simple.

[@karanmunjani3256]

Such A great explanation and the way of teaching is amazing. thank you so much for uploading these videos.🙌🙌🙌👌👏

[@devakritbagchi2787]

The best english off all the Indian teachers teaching on youtube.

[@2ooo4]

Just go to edureka first

[@PareeksAcademy10october2001]

Best teacher in Computer Science Field👏

[@apikshavenkatesh1384]

You be the best sir ! Once i see ur videos ill never forget those concepts..

[@jovani1820]

Incredible, love all of your videos!

[@TechSupportRoman]

Keep this video's as long as possible it helps students to understand easily

[@kms8320]

I am from tear-2 college but you are far far better than my college's prof.s

[@mindevo3677]

simple and easy-to-understand your explanation is. Complicated and hard to follow, my professor's explanation was.

[@Proman73]

Best in the game! Thank you very very much

[@towardsthenorth2022]

The more I go deep into algorithms, the more I start appreciating Mathmatics.

[@saimahumma4724]

Awesome explanation Sir

[@deojeetsarkar2006]

My semester finished before your video.

[@adityadubey6910]

Best teacher for daa subject

[@chen-kim9440]

The teaching is inspiring and easy to understand! I really appreciate it, thanks!

[@YaswanthsriseshagiriNimmakayal]

Thanks for these wonderful videos, these videos are a fuel for my career, Once again thanks man

[@PrachiJain-mk8gk]

Thanks a lot sir helped just before my exam

[@PreetiSingh-ko7dm]

u have more knowledge really awesome lecture

[@sidrashaibaan8222]

Preeti Singh ......... ..

[@ameerazam3269]

:)

[@vedantbalachandra1304]

sir i would like to thank you for everything strassesns multiplication is taught so well thank you so much sir

[@Starhes]

Thank you for the video. The explanation was very clear and straight-formward. However l wished that you could explain more at the last 5 minutes of the video.

[@tejasvi.n5099]

Sir, I have 2 doubts 1. We can solve this prblm with 4 formulas also or only with 7 formulas? 2.for 7 formulas is there any trick ? Or we shld byhard

[@tejasvi.n5099]

🤪🤪ok thanks sir.

[@rudrakshjhalani1681]

Veryy good explanation....so calm!!

[@techfornoobs4241]

ur very good at explaining things!

[@MekalalakshmiReddy]

When I was seen my book omg how can I done with this but when I saw u r videos I feel too relax and I felt and i learn subject from u sir thank u sir 🥰

[@rangareddyjulakanti]

Happy Teachers day sir🎉

[@badhesuresh8244]

Use 2x speed you definitely rocked it 🔥🔥🔥

[@moshahid8257]

Thank you sir Method of another people confused me You explained accurately and in short term 🤗🤗🤗

[@eva42sh]

You are the Best Teacher

[@osmankhalid2005]

thank you for making it look less scary.

[@akashkirthik9882]

Wow ! The explanation was awesome !

[@divyeshjivani2629]

this much deep explanation is great!! very nice explanation

[@WWG1-WGA]

Something I think I don’t like maths and they are difficult…. But … They make SO MUCH SENSE ! more than human Sense 😅😢

[@pranavnyavanandi9710]

Excellent video. Just getting started with these concepts.

[@santoshkumardoodala2535]

actual content starts at @19:30

[@bikramthapa2687]

Thank you so much , sir for spreading valuable knowledge.

[@royal9063]

Sir I wish you got a lot of subcribers. I will try subscribe as much I can. When a useless youtuber can get millions of subcriber so the teacher like you deserve more. Thank you sir. Everu cs student should subscribe you.

[@mary-nate]

Thank so so much for the lecture. I have a question, does anyone know any books or websites to do more exercises for algorithms? I get the concept but I need to practice more

[@كنداكة-ه3د]

Thanks from Sudan🤗

[@tejapandruvada7164]

Sir do we need to remember formulas of P,Q,R,S,T,U,V

[@shubhamdhiman5198]

How to derive strassen's formulae without memorizing it??

[@antonstarostin4876]

To derive Strassen's formula you need to think like Strassen :) I believe he spent years to come up with it

[@darklegend4912]

@@antonstarostin4876 lol

[@bhavikashah816]

@@antonstarostin4876 😂😂😂

[@bestmoviesclips1043]

www.geeksforgeeks.org/easy-way-remember-strassens-matrix-equation/

[@kunalsharma3099]

@@antonstarostin4876 good explan ation

[@mayurkalsekar524]

Thank you sir ..love from dadar

[@ankit80354]

kitna shaanti se sabkuch accha se ap samjha dete ho bilkul top level kai teacher ho sir ap

[@thenerdycoder07]

Self study is better with this class

[@kunalkheeva]

Happy teachers day sir, Mucho Appreciated!!

[@jaxonhundertwasser3068]

I've got a question...given that Strassen's or the divide and conquer needs to have matrices in perfect powers of 2, As n gets larger, wouldn't the iterative method be faster than Strassen's unless we're at a 2^n*2^n due to the fact that the size of the matrix needs get larger/padded by 0s? or am I missing something?

[@PareeksAcademy10october2001]

I hope this question will come in my 5th sem exam which is on 17 feb 2023.Wish me luck 🤞

[@amitmelamed8003]

Abdul you are my king

[@cheUriBuddy]

21:36 I applied exact same formula but couldn't get the correct answer. Every element is correct except c21 and c22. I've rechecked the answer thrice and all the steps calculated are correct. And also I've seen different type of formulas. So please can you check whether the formula that you've provided is correct. Please let me know if I'm wrong. TIA

[@sakshigoraniya4584]

You made it so simple to understand

[@nazishschughtai5712]

very effective method.. thanks Sir

[@reshmakhan4081]

such a good lectures it help me very well in my study

[@eurasiantreesparrow7547]

Great explanation, thank you

[@mohammadyahya78]

Thank you. Vey clear. So how we came up with the 7 equations at 22:43 please?

[@lalmohankumar501]

very good explaining process i really appreciate your explaining technique

[@nicesacbro4891]

I signed in only to give a like to the video

[@ranjithabm9669]

Sir super teaching .....this is very useful for me thanks....

[@sideacademyforcs9134]

Your all lectures are awesome sir g...........

[@shobhitranjan3957]

Brilliantly explained!

[@HXYZZZ]

Thank you sir. Great explanation.

[@carloshenriquekruger6476]

You are the best man! Great explanation! :-)

[@mm46393]

Very clear explanation. Thank you so much for the good video

[@divinearts3236]

You are the best sir ever ❤️❤️

[@lian-jdqm8200]

Me ha servido tu explicación, gracias.

[@mohammedrizin3015]

Sir the matrix multiplication of [ 4x4 ] how could it understand the new matrix is A11 or b11

[@nehal076]

Wah! Kya teer maar liya Stressen

[@renginid9313]

Sir, your class is excellent. I have one request. Can you post a video about costs associated element comparison and index comparisons

[@mohdibrahim1995]

sir you are very good in this topic i must say thankyou

[@fifi7244]

Thank you very much , Sir. From Canada

[@subhashsuragani]

Tq sir mevalla DAA exam super rasanuu😅🎉🎉❤

[@Ajinkya_Chirde_07]

best explanation sir 🙂🙂🙂🙂🙂🙂🙂

[@profmo]

Applauding! You did a great job!

[@shivarammuthukumaraswamy7164]

best teacher ever

[@yagmursabrl2956]

very helpful video thanks!!

[@naziyafirdoussayyed8491]

Thank you so much Sir 😇... Love and respect from India🇮🇳

[@backslash8874]

He is from India too

[@madampranaykumarreddy343]

how can we slove matrices with 3*3 and 3*3

[@abhikta3230]

He is the best...

[@level1gg]

Very well explained :)