We pay thousands of dollars in our Universities and all that money can't even match to Dr. Adul Bari Sir selfless efforts and Teachings. Huge Respect.

You managed to teach more things in 15 minutes than my professor's 3-hour lecture. Many thanks!

I am feeling that you are doing 1-On-1 Training to me, as you pause and explaining. Hats off sir!!!

Hi Abdul. You saved my life in my college career, and now I am passing your secrets down to my friends who are just starting out. I hope you are living a prosperous and blessed life for how much help you have been.

Damn, I payed 0 dollars for this video, and he taught me better than my professor

This man taught me more than my university professors. Huge respect sir. Thank you

I have watched so many videos, and this was by far the most helpful. For some reason, your teaching style, and the way you over view the topics, stopping at certain points to go into further explanation were really helpful! I'm so lucky I found your video. Thank you sir.

I never before got more than a very blurry idea of what Big-Oh-notation really is about - but you make it all so clear, the meaning, the closer and broader context - thank you from the bottom of my heart!!! Thanx a million for your effort and time!!!

This is how education should be. Clear and to the point, without showing (bragging) the knowledge the writer/teacher/content-producer has. The learner/student should be able to grasp everything, which is exactly what you do Abdul! I see none of the online PAID sites/videos/tutorials/courses, and even books are written by well-known authors would clarify the subject. They'd hurry about completing the course, by giving complex math formulas, giving weird and non-realistic examples, giving complex problems to solve - BUT without letting the learner learn anything!

I PAID SO MUCH MONEY IN SCHOOL. BUT I ONLY UNDERSTAND EVERYTHING WHEN I COME HERE AND WATCH YOU! GOD BLESS YOU AND THANK YOU FOR HELPING ME PASS.

I bought one of his courses over at Udemy. He is a great professor. Thank you so much for making this videos.

Sir, I really want to thank you, I finally found a good teacher on your videos. Greets from Mexico, gracias!

No other instructor holds my attention for as long as you do! I understood every word! Thanks for the great lesson.

Thankyou so much Sir for such crystal clear explanation.... finally my concept is being cleared . Wonderful lectures 👌👌

In 15 minutes, you explained this better and more clearly than my lecturer could in 2 hours. Big thanks, and I hope you're still actively posting this content!

14:58 Wow you cleared up the exact thing I was mixing up. Thank you so much! I guess sticking until the end of the video is sometimes very helpful.

One year ago I completed my graduation. Finally, this topic made sense to me. Thankyou sir, what I couldn't learn in 4 years, I learned in these 20 minutes.

Bless you sir!! I along with my fellow students have been struggling in our Algorithm Analysis class. Your videos are what's going to help us pass the class. Super helpful and informative!

You did in 15 minutes what my course material couldn't in hours. Thank you, I genuinely would be lost without this help.

I am randomly searching videos for understanding the big oh concept with examples. After watching 5-6 channels, came across your video. After watching, I am so excited that the concept is clear and I could easily apply big oh concept many expressions. To my goodness, I see a complete playlist in your channel and started watching and targeted to complete the playlist Thank You sir and great respect for providing such quality videos.

Have spent so many hours understanding via Books and other college lectures. Was still unclear. But Thanks to you , Sir Abdul Bari for making this lecture, its is so simplistic and comprise to understand. Salute!! Now the concepts are clearly imprinted for life time.

Amazing tutorial! It took me approx. 2 months to understand time bounds, before I came to this video ... You helped me understand everything under 20 mins :)

One of the Most valuable videos and instructors on the KZfaq. Thanks for making such a nice tutorial and helping everyone

I am from Iran and i feel truly blessed that i found your videos thank you so much these are totally helpful for me

You are an amazing professor! I've sat in every class so far this semester and my professor made 0 sense to me regarding this. After watching your 15 minute video I totally get it now. You deserve some sort of award.

I sat in my class not understanding a single word coming out of my professor's class. Thank you so much, I feel much more prepared for my test!

You are a great teacher. I spent almost a week to understand the differences between upper and lower bounds. You cracked everything. Thank's a lot for this brilliant explanation . 👍👍👍👍

I have struggled in two semesters to understand this concept. Phenomenal explanation, I finally got this.

Sir you are doing a wonderful job of explaining these topics in simple way and free of cost. I respect your work . Thank You

Sir, you are a gem, and must be preserved! Loads of love and respect! 🙏🏼🙏🏼🙏🏼🔥🔥

The best explanation of Asymptotic Notation on entire internet. The last advice on best/worst case was a top notch.

What a wonderful lecture. I couldn't learn all these in my college days. So now after 9 years I am trying to get a job in coding segment. This lecture is tremendously helpful :)

The perfect explanation which will take minutes to understand from book & you made it possible in seconds 🔥

The last tip was very important to clear future confusions. Thanks a lot sir.

he taught so smoothly and explained in such a easiest way that everything goes into mind in one go and will remember FOREVER.

I've read tons about this in the internet and no one can explain this as understandable as you do, thank you so much teacher

When it comes to algorithms..this is by far the best video series on youtube.

My professor makes this subject so confusing, this video really helped to clear things up ! I like that you bring up cases where students usually do mistakes.

This was perhaps the best video I've seen on this topic, especially the clarification you made at the end which was a very very important one! Great video! keep up the good work

Amazing video, clear explanation and straight to the point. I do appreciate when you gave a real example of how to solve simple problems. Thanks a lot!

Sir, thank you very much. You have such a great teaching skill. I was going along the flow of this lecture without any confusion.

I rarely comment on any video, but this one compelled me to do so. Bravo🙌🙌

This explanation is the best I was able to find on youtube. You are amazing! Thank you so much!

This was the best explanation I have ever saw. And clearing it's misunderstanding with best/worst cases was really helpful. Thanks a lot sir.

Finally understood these concepts. Thank you for these amazing lectures :)

Thank you Sir! Theory of Algorithm course was impossible for me without your videos, I'm so grateful

Thanks. For last 2 weeks i have been struggling for asymptomatic notation but in 15 mins my concepts are clear.

this man calms me in ways I can't explain. Such a great teacher.

hi, i got full marks for my orders of growth question during my test, thank you so much for this explanation!

thanks a lot, sir! I was literally on the verge of crying because of O notation. You cleared my concept so well sir thank you🙏

Sir you are teaching so well that I am actually watching like half ad or when it's almost done for you because you deserve it sir and your teaching skills feels like one on one class Thank you!!!!

You're a true professional when you can clearly explain complex concepts to a 5yo child. And I am this child.

After referring many books and listened to countless number of lectures, this is the first time my brain could fully understand Asymptotic Notations. Thank you Abdul Sir. May you live million years.

Oh My God!!!!!!!!!!!! What's going on here..The best explanation i ever met...

Professor Abdul Bari is fabulous!! What a great explanation in each of his videos! Two thumbs up!!!

I have been going through so many videos of Asymptotic Notation.....none of their explanation was as good as yours..Thanks Alot sir

Really amazing way of teaching. Cheers :)

Sir you are best and the voice and your explanation both are so clear. This lecture is really helpful😊

Now it makes sense why I see so many explanations are mixing the Big O and Big Theta. Thank you!

I've been struggling with my algorithms class all semester mostly because the prof did a horrible job explaining this concept. This man just explained it in a way better and easier to follow way than my university professor, huge props

Mr Abdul if only we had a teacher like you.

Happy teacher's day sir.. you are awesome.. I'm just started learning ds and algo and I think I'm in right place to start 🔥❤️

I previously learnt asymptotic notation through some websites but i was not able to understand its core mathematically especially i don't know how to plot those functions graphically but after watching your video I am able to understand very clearly and now when I see asymtotic notations tutorials on internet I am able to relate it easily. Hats off to you sir.

Best explanation on asymptotic notations available on the internet! Many thanks to you, Mr. Abdul Bari. Liked and subscribed!

I'm about to start my masters but this man is Master teacher. Well done! Look forward to all your other content.

Your way of explanation with examples is really good sir, I've watched some videos from "Coursera - Algorithms Implementation by Stanford", they just rush through the topics, without providing any clear information, thanks a lot sir for your time and patience in making these videos, surely many of the students & professionals will definitely get benefited out it

I truly appreciate your wonderful lectures and your crystal clear explanation. This topic is finally understandable to me. Thank you, Abdul.

this is amazing! wonderfully explained! 100% recommended.

I feel so lucky to learn from him.

I think it is the best explanation on asymptotic notation

Thank you very much sir. I really appreciate this effort, I couldn't thank you more, exactly breaking down the difference between function notation and giving example with scenarios. You clarified clearly why these are used and not to be confused with best and worst case..!! 🙌

The visual of the upper, lower, and tight bound equations made this so much easier to understand. I also appreciate showing both correct and incorrect answers.

Life saver, thank you soo much!

When we studied algorithms, our teacher said that "this is big-oh, it belongs to upper bound, this is big-omega, this belongs to lower bound...." then showed the theorems and till today after passing out MCA I get confused which one is big-oh or theta. Praise to Abdul Sir who not only describes the theorems but also visualizes all of the notations.

After trying many many tutorials ,i found this one very very useful...Thank u sir.

thank you sir, you are amazing , i had seen many videos but never understood the concept so clear.............!

Thanks you very much sir , I was confused about all big o theta and omega for a perticular function you made it very easy ,these important tricks are your hardwork.

Best Case != Big Omega Worst Case != Big Oh Average Case != Big Theta This needs to be highlighted more! This was not taught in my subject and I haven't read it elsewhere. +1 for giving away these gems of knowledge, sir.

sir you have just made this clear after i have been in college for one month and had no idea what this all meant, thank you

I became addicted to your Awesome Videos..Thank you so Much Sir.

⦿ ⦿ ⦿ ⦿ PLEASE ......... DONATE to him as much as possible!! Most of his vids doesn't have Ads. He deserve more. Such a kind hearted man!

Very nice explanation ! Thanks

Thanks to this playlist I finally understood what is the time complexity and notations related to that. I am grateful. Thank you very much sir.

It’s been 6 years from uploading this masterpiece and it still efficient and helpful. Thank you so much professor Abdulbari❤

1.5 hrs uni lecture in 15 mins. 🎉

Great explanation... this is clear and concise

The 1st Line that you have written on the white board: 1

He really just explained asymptotic analysis in 15 minutes when my professor couldn’t in 90 minutes

Love India🇮🇳🇮🇳🇮🇳 from China. Too bad my MIT educated Phd professor couldn’t explain things like this as good as Mr. Bari

i have been felt that i'm in classroom and I got remembered my college days., such a wonderful lecture and got a deep copy in my brain. Thank you so much Sir. Abdul Bari god bless you

Clear explanation, simplified complex material into a simple one. So that was what the meaning of big-oh, theta and omega was.

Sir , you are the key of this subject. I found you and I unlocked it by you. Thanks.

The university lectures are scheduled consecutively and adhere to strict time constraints, ensuring that they cover a wide range of topics to achieve specific learning objectives. The university system is observed to exert significant pressure on the staff, particularly in terms of publishing. Watching lectures from university lecturers on KZfaq is helpful because it allows you to learn without being under any pressure.

2:56 Big 'O' Notation 9:52 Omega Notation 12:57 Theta Notation

I finally understood after rewatching this a couple times. Thank you so much for explaining this in a way that was easy to understand.

Great Hyderabadi Master Professor in Mathematics Amazing series of videos sir... After 25years of my college studies. now clearly understood for how really really useful in a software (no matter python or golang any language). Base is base

Thank you sir for explaining it so thoroughly and simply . Salam from Pakistan....

you're amazingggggggggggggggggggggg! thanks bro🤩🤗

hats off sir 2.5hrs class didnt clear my concepts for new what i have understood in 20 minutes thanks

Your hard work and easy explanation are highly appreciated! Much respect for you sir!