Independence, Basis, and Dimension

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  • Опубліковано 2 жов 2024
  • MIT RES.18-009 Learn Differential Equations: Up Close with Gilbert Strang and Cleve Moler, Fall 2015
    View the complete course: ocw.mit.edu/RES...
    Instructor: Gilbert Strang
    Vectors are a basis for a subspace if their combinations span the whole subspace and are independent: no basis vector is a combination of the others. Dimension = number of basis vectors.
    License: Creative Commons BY-NC-SA
    More information at ocw.mit.edu/terms
    More courses at ocw.mit.edu

КОМЕНТАРІ • 285

  • @valeriereid2337
    @valeriereid2337 3 роки тому +190

    I am certainly glad to see a professor who teaches from his brain, not reading from power point slides. This is refreshing.

    • @doyochi02
      @doyochi02 Рік тому +3

      lol I'm about to say that

    • @Ztingjammer
      @Ztingjammer Рік тому +4

      It most certainly is! It's so captivating as well.

  • @jmr218
    @jmr218 7 років тому +734

    Wow, the first 2 minutes of this lecture explain the topics better than 1.5 hours listening to my current teachers.

    • @vladkovalenko9222
      @vladkovalenko9222 5 років тому +2

      True)

    • @RazorM97
      @RazorM97 5 років тому +1

      I so agree, wow

    • @HK-sw3vi
      @HK-sw3vi 4 роки тому +8

      you weren't paying attention in the class, let's be real

    • @calvinmata56
      @calvinmata56 4 роки тому

      @@HK-sw3vi No my teacher just has a VERY heavy accent and he wasn't on rate my professor so I went in blind.

    • @AllRounder-jt1pe
      @AllRounder-jt1pe 4 роки тому

      In which college u r ??

  • @vongxiong5125
    @vongxiong5125 7 років тому +393

    1,0,0 is a better A3... then.. that loser, that 6,3,5.
    LOL he's halarious.

  • @souvikcseiitk
    @souvikcseiitk Рік тому +1

    First 2 minutes of the video are more than sufficient to kick off any vector space problem you'll ever face in exams. Thanks for preserving quality education, I am really fed up with brainless professors these days trying to print formulas in brain. Thanks MIT and IIT for preserving quality education

  • @lightcapmath2777
    @lightcapmath2777 3 роки тому

    Am reviewing LA and have not done it in over 20 years. This first lecture of Dr.S, as many have commented, is very clear and simple. Thank you Dr. S DVD:)

  • @SilverArro
    @SilverArro 8 років тому +358

    All math and engineering majors should be required to learn Linear Algebra from Dr. Strang. His lectures are beautiful, crystal clear, and emphasize the big ideas of the subject, and how they connect to one another.

    • @lucasm4299
      @lucasm4299 6 років тому +2

      Arlo
      I wouldn’t say crystal clear in my opinion.

    • @mikem9270
      @mikem9270 6 років тому +12

      @@lucasm4299 compared to my professor, clearer than crystal XD ... My professor shouldnt be allowed teach

    • @RutwikGulakala
      @RutwikGulakala 5 років тому +9

      @@mikem9270 I agree. My professor couldn't explain what Dependent and Independent vectors are properly and every student in the class lost their shit.

  • @cristinabosch
    @cristinabosch 5 років тому +96

    GILBERT STRANG, YOU ARE A GIFT FROM THE HEAVENS!!!!!!!!!!!!!!!!!! I HAD NOT UNDERSTOOD ANY LINEAR ALGEBRA WITH MY LECTURER AND YOU ARE NOW SAVING MY LIFE!!! YOU ARE B E A U T I F U L , thanks for changing my life 😩😩😩😩

  • @andrescm1022
    @andrescm1022 7 років тому +111

    Man... Wish my linear Algebra classes were as half as good as this one...
    This is simply beautiful.

  • @water7875
    @water7875 7 років тому +102

    This dude wrote the text book im referring for linear algebra! His lectures are as amazing as his book!

    • @chandrapandey822
      @chandrapandey822 6 років тому

      mustard seed
      Yup and most importantly it talks abt. the APPLICATIONS which is more important.

    • @chandrapandey822
      @chandrapandey822 6 років тому

      mustard seed
      But sadly I have the book in PDF format..

    • @josephgeorge2513
      @josephgeorge2513 6 років тому

      Can you email me the pdf or direct me to it

    • @monaal.8494
      @monaal.8494 5 років тому

      What is the name of his book please!

    • @emma.muhleman
      @emma.muhleman 4 роки тому

      I WANT HIS BOOK! Expensive though, you can't get it free, right?

  • @divutiful
    @divutiful 3 роки тому +19

    It's a treat to the brain. He is explaining like a person does not know anything about the topic but still can go through the lecture. Hats off to the professor here.

  • @damiantoddwell5439
    @damiantoddwell5439 6 років тому

    Thank you professor.. Now i have finally understood something that has been puzzling me for a week..

  • @letlhogonolonape849
    @letlhogonolonape849 7 років тому +3

    Thank you sir, you really helped me. This video is soo understandable. You explain everything soo well. This is full of information and short at the same time

  • @amirhamzabangash2936
    @amirhamzabangash2936 4 роки тому +2

    May Allah guide you to the light of ISLAM

  • @kanikabagree1084
    @kanikabagree1084 4 роки тому

    Best teacher i've come across thankyou so much for saving us 😭

  • @stalins1383
    @stalins1383 7 років тому +25

    You are amazing sir... Education is all about transferring your intuition to others... You always great in that.

  • @rickeyaustin7649
    @rickeyaustin7649 7 років тому +29

    First video in the series Dr. Strang did not start with "Okay!". I love the work he has done and his effort to provide quality teaching to the world! Thank you!

  • @simonthomas5848
    @simonthomas5848 5 років тому +1

    I love you sir!!! you are a healer!

  • @ragsiruh
    @ragsiruh 6 років тому +11

    A beautiful lecture! For the first time I understand basic terminology of Linear Algebra! Phew! There's a special place in heaven for you. There's a reason why MIT is MIT

  • @johnxiaoyuzhang8961
    @johnxiaoyuzhang8961 2 роки тому +6

    I am glad people like me who did not get into MIT can take MIT courses. All the videos I saw from MIT are very clear, easy to follow, and well-structured! amazing

  • @samarathrodriguez7662
    @samarathrodriguez7662 6 років тому +8

    Every time I watch Strang's videos everything makes so much sense and I wonder why I hate Linear Algebra so much.

  • @AyushBhattfe
    @AyushBhattfe 6 років тому +7

    I read the book, then I come to Strang's lectures and I am always all like "oh wtf, yeah it makes sense now"

  • @steve8219
    @steve8219 4 роки тому +2

    Oh god, I paid $6000 for a Maths course in uni and barely understand teacher talking about, and it turns out free UA-cam video helped me understand every single concept. Imao

  • @yashj1072
    @yashj1072 3 роки тому

    Eloquent and powerful

  • @abhisheksingha8008
    @abhisheksingha8008 2 роки тому +1

    😔 ....... Please upload full video cource in UA-cam or any site for those student who not get chance in MiT but want good concept with Clearity...

  • @funghang3482
    @funghang3482 6 років тому +12

    professor like Dr strang produces brilliant student , and the student are the reputation of the university . 20 lecture of my professor= 13 min lecture of Dr strang .

  • @jkim9931
    @jkim9931 3 роки тому +1

    9:55 dimension = # of basis vectors for the subspace

  • @royah5404
    @royah5404 7 років тому +14

    explained very well. wish he is my professor! thank you!

    • @ahsan400
      @ahsan400 7 років тому +8

      He is your professor. Aren't you studying from him? If yes, then he is :)

  • @d4lep0ro
    @d4lep0ro 7 років тому

    this guy is brilliant

  • @zombie-blood-490gaming5
    @zombie-blood-490gaming5 5 років тому +3

    god bless you sir, i havent understood this this shit for 3 months till i found this video!

  • @Synconntez
    @Synconntez 4 роки тому +2

    This guy CAN TEACH!

  • @alvinaawan884
    @alvinaawan884 4 роки тому +3

    You are a life saver, huge respect for the way you teach. Finally I understood all of the concepts after struggling for about one year. Hatsoff. Thankyou so much Sir

  • @jwyliecullick8976
    @jwyliecullick8976 4 роки тому +2

    This lecture series shows vast improvement over previous eras; its total lack of fluff, jokes, anecdotes, it's just non-stop content in a nice little 13 minute package. I'm reviewing in the background, it's a great refresher even if oriented towards new students.

  • @cainmorano4956
    @cainmorano4956 7 місяців тому +1

    He called one of the vectors a loser. Thumbs up for this video. Also, Strang is great because he keeps simple. KISS is too long and he knew this. It's KS, and the K is only there for clarity.

  • @LICHKING55Show
    @LICHKING55Show 5 років тому +3

    Thank the lord for this man. My teacher can't teach in a way that makes sense for his students, but Dr. Strang made it all make sense.

  • @IMadeOfClay
    @IMadeOfClay 6 місяців тому +1

    4:30: Professor Strang was brutal on a3 😂

  • @DrChillg00d
    @DrChillg00d 5 років тому +1

    5 sections of gibberish laid out in 13 totally crystal clear minuets. good lord this is magic

  • @omkarkhare9160
    @omkarkhare9160 6 років тому +2

    such an awesome guy! That's how math should be taught! You can never get bored while hearing Dr Strang's lectures..

  • @vocdex
    @vocdex 5 років тому +2

    Thanks to Dr Strang, I can now visualize what does all concepts represent. The things are very clear right now.

  • @Googk
    @Googk 2 роки тому

    Subspace: không gian con
    Basis: cơ sở của vectơ
    Column: cột
    Dimension: số chiều

  • @NothingMaster
    @NothingMaster 5 років тому +1

    “That loser 6, 3, 5” 😂 Strang is an exceptionally gifted lecturer And an absolute straight-faced blast. LOL

  • @adriangheorghe2327
    @adriangheorghe2327 2 роки тому

    Please just confirm if these dimensions, of the terms in the field equation, found on the internet, are correct or wrong.
    [G(miu,niu)]=M.L^-1.T^-2; [R]=[Lamda]=L^-2; [g(miu,niu)]=M.L.T^-2; [T(miu,niu)]=M^2.T^-4. And if the dimensional homogeneity of the relativistic gravity equation is checked with these dimensions of the tensors and curves in the field equation?

  • @trading_denial
    @trading_denial 4 роки тому +1

    Many many thanks for your good explanation!!

  • @DIVYPAREEK-v3t
    @DIVYPAREEK-v3t Рік тому +1

    this is the best lecture so far

  • @deadbutworking
    @deadbutworking 3 роки тому +1

    God what a godsend .. been trying to get these simple concepts for so long and finally one video did it!

  • @benokhattirach310
    @benokhattirach310 3 роки тому +1

    Thank you so much Prof

  • @pragmatic_p8
    @pragmatic_p8 Місяць тому

    he explained 15 classes of university's schedule in 15 minutes!!

  • @karangujarati4589
    @karangujarati4589 4 роки тому +1

    So good to hear and learn from u sir,
    Clear my fundamental about dimensions and basis very well. Yup better than hours of class 🤟🏻

  • @user-vg7zv5us5r
    @user-vg7zv5us5r 3 роки тому

    I guess professor keeps constantly one-trick-flirting with his students and camera man
    3:47 So in order to prove that a vector is independent from the others you need to assert that its coordinates aren't equal to the coordinates of the result of any possible addition and multiplication combinations in a given set?
    How-to to solve this problem: ua-cam.com/video/AqXOYgpbMBM/v-deo.html

  • @publicplace2034
    @publicplace2034 10 місяців тому +1

    It's Amazing sir,

  • @varshinir6489
    @varshinir6489 7 років тому

    He saved me 👐

  • @zhaomike952
    @zhaomike952 4 роки тому +2

    The best professor I've ever seen. There is the MIT!

  • @rot1869
    @rot1869 Рік тому +1

    God bless this guy

  • @suryanshshukla7384
    @suryanshshukla7384 3 роки тому +1

    This is best explaination i have listen for basis, dimension and subspace. It explains everything with connecting one idea to another.

  • @madiganrios8865
    @madiganrios8865 11 місяців тому

    Good video, thank you. I find this stuff really confusing and this really cleared things up

  • @Aventinium
    @Aventinium 7 місяців тому

    Basis is a bunch of vectors and dimension is how many vectors.
    In a single sentence, he sums up what wasn't made clear in so many other lessons and videos and lectures.

  • @reinia127
    @reinia127 6 років тому +1

    thank you so much !!! finally I understand what span means

  • @somenn.s3977
    @somenn.s3977 3 роки тому

    Only depressing thing is that Prof.Strang is getting old ,wished he were half of his present age ,more gems from math we can get.

  • @AjayKumar-zq7vm
    @AjayKumar-zq7vm 6 років тому +1

    Make some more videos like this because there is no good education in my institution
    We thank you for sharing such informative video with us

  • @mainmuhammadramzan
    @mainmuhammadramzan 5 років тому

    Lemma if f: A -. B is an affine map then the map L,: A-a -. B-f(a) defined by
    4(x) = f(x+a) -f(a)
    is a linear map. The map f is obtained from Lo by the previous construction.

  • @Michael-ud4wr
    @Michael-ud4wr 7 років тому +12

    This guy is great

    • @denizerol1
      @denizerol1 4 роки тому

      not like that 6 3 5 that guy is a loser

  • @yodhakei
    @yodhakei 6 років тому +1

    Beautiful.. Thank you sir! Need to digest a bit I think

  • @chistoph-msby5191
    @chistoph-msby5191 3 роки тому

    I gave a gold coin I did sum research he hurt my feeling I'm still learning I get confused and really I'm patient

  • @anthonypascual9347
    @anthonypascual9347 7 років тому

    Thank you

  • @dtalmood
    @dtalmood 5 років тому +1

    This guy is the real MVP

  • @nora-xk6gv
    @nora-xk6gv 7 років тому +1

    you deserve the whole respect Prof I would like to thank you so much .

  • @EdorahVtuber
    @EdorahVtuber 5 років тому +1

    omfg i love this guy and his explanations actually make sense!

  • @honkhonk8009
    @honkhonk8009 Рік тому

    god i love this guy. hes so chill bro.
    Explained everything perfectly. Damn

  • @anniechen7618
    @anniechen7618 Рік тому

    This video made me realize how long it’s been since I heard chalk

  • @Hobbit183
    @Hobbit183 6 років тому +2

    the bob ross of mathematics :)

  • @mortezanaghavimoghadam8258
    @mortezanaghavimoghadam8258 11 місяців тому

    why independence of three vectors lead to covering whole space?

  • @TonyTorzido
    @TonyTorzido 3 роки тому

    Bruh what a G. He made it super easy. Thanks, profe

  • @farrugiamarc0
    @farrugiamarc0 11 місяців тому

    It is amazing how Professor Gilbert Strang manages to explain such an abstract mathematical topic with so much detail, yet making it easy to understand. He has all the qualities of a good teacher.

  • @dabeeramir1407
    @dabeeramir1407 10 місяців тому

    Amazingly explained, I've been trying to figure out this stuff for so long and you explained it beautifully

  • @benrow5472
    @benrow5472 6 років тому +1

    you're the man Gilbert Strang.

  • @makanot8880
    @makanot8880 4 роки тому

    First off, this guy was great, but how am I supposed to do math while being so aggressively seduced??? 😉

  • @arjunag7553
    @arjunag7553 8 місяців тому

    Been wracking my brain for two days..listened to one line of his explanation and I got all the clarity in the world.

  • @falconlin419
    @falconlin419 Рік тому

    You're the best, professor. I am studying from the 18.06 in spring 2010 and you explain everything very clear. Thank you!

  • @dhrubajyotipaul8204
    @dhrubajyotipaul8204 Рік тому

    This was so simply explained that I'm in tears. THANK YOUUUU!!! ♥♥♥

  • @Nobody_19993
    @Nobody_19993 3 роки тому

    why a3=[6,3,5] it's dependent?

  • @michaeltheisen
    @michaeltheisen 2 роки тому

    the moment he explained nullspace, i finally got it

  • @amugaero5128
    @amugaero5128 2 роки тому

    Can two different set of vectors span the same plane? say v1 and v2 spans a plane P1 but can we find different set of independent vectors v3 and v4 that spans the same plane?

  • @aprillam227
    @aprillam227 5 років тому +1

    super cool. such a life saver for my exam!

  • @WestOfEarth
    @WestOfEarth 4 роки тому

    What a pleasure it would've been to study mathematics under Dr. Strang, and physics under Dr. Feynman. Two luminaries who cut through the jargon and teach.

  • @sanjursan
    @sanjursan 4 роки тому

    When Hollywood makes the movie, and they should, they gotta get Jimmie Stewart to play Strang.

  • @danieladeba206
    @danieladeba206 2 роки тому

    Wow!I have never seen such like lecturer....amazing, brilliant for sure!!

  • @diy-projects
    @diy-projects 4 роки тому

    wow this is way better than my teacher...

  • @laurencealanano2495
    @laurencealanano2495 3 роки тому

    WOW, he really made it more easier for me to understand and his really good! I like how he explain the concepts and meaning of those terms first before teaching about it.

  • @vrclckd-zz3pv
    @vrclckd-zz3pv 2 роки тому

    This video provided me with a very Strang introduction to the concepts. Thank you.

  • @prateekmishra6245
    @prateekmishra6245 4 роки тому

    for the very first time I visualised as to what this crap is :) thank you so very much professor.

  • @erickhumalo1913
    @erickhumalo1913 5 років тому +1

    You're a Legend Madala
    Thank you so much

  • @Lena-wn2lg
    @Lena-wn2lg Рік тому

    Professor Strang is a genius math teacher!! This is how math should be taught.

  • @adriandenson2014
    @adriandenson2014 2 роки тому

    I may only be 30 seconds into this … isn’t it just a system of equations and asking if the lines cross or not ?

  • @andizvlogs
    @andizvlogs 6 років тому

    I came from the lecs of linear algebra of 2005 , and i see how him grew up, omg, he is the best!!! i wish i has professors like him.

  • @mkkkk1643
    @mkkkk1643 3 роки тому

    "strang" understanding of linear algebra!

  • @ahmedkhalifa9333
    @ahmedkhalifa9333 2 роки тому

    One like is certainly not enough for your enthusiasm and dedication Prof. Strang.

  • @kaiserluvsmariel
    @kaiserluvsmariel 4 роки тому

    You're an angel sent from heaven! Thank you so much for these wonderful videos!!!

  • @georgesadler7830
    @georgesadler7830 3 роки тому

    These topics are important in linear algebra. DR. Strang explains these topics very well in the video.

  • @prashantjadhao22
    @prashantjadhao22 3 роки тому

    a3 should be= (6,3,15) , not (6,3,5)

  • @srirampallav2765
    @srirampallav2765 4 роки тому

    Thank you so much . Have been trying to understand this concept but haven't found a right source which emphasizes on the practicality of the content rather than a textbook definition until this elegant lecture.

  • @EsKaioS
    @EsKaioS 6 років тому

    i finally understood after just 13 minutes of his lecture compared to the 1.5 hours rewatching my uni's lectures and trying to figure out what a basis is. Thankyouthankyouthankyouthankyou