Linear Algebra - Lecture 2 - Elimination

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  • เผยแพร่เมื่อ 27 ธ.ค. 2024

ความคิดเห็น • 47

  • @tonyn1742
    @tonyn1742 5 ปีที่แล้ว +28

    Taking Linear Algebra right now in Uni. I do not understand the way my professor teaches but you explain it so clearly, hopefully, I can apply what I've learned from you to my exams. Thank you so much!!

  • @azizbekibnhamid642
    @azizbekibnhamid642 3 หลายเดือนก่อน +1

    Thanks for amazing lessons! Your videos deserve 1M views

  • @kendalhenson6068
    @kendalhenson6068 5 ปีที่แล้ว +23

    I've been having a hard time in my class. I just finished the first three videos and understand linear algebra easier to understand especially since I have my first test today. Thank you so much!!!

  • @italophile2437
    @italophile2437 3 ปีที่แล้ว +4

    I having been studying this subject for 'pleasure' for a while but only now understand it! The clearest explanations I have ever seen.

  • @micah2936
    @micah2936 ปีที่แล้ว +1

    I didn’t want to pay for school and I learn better on my own, plus math comes naturally for me, so I decided to use these lectures to teach myself the subject. This is the only math class I’m missing for the math section for taking a FE exam
    thank you!

  • @Wintersghost135
    @Wintersghost135 4 ปีที่แล้ว +8

    It’s so beautiful, man!😮😍 It’s like an unsolvable puzzle at the beginning but then all the puzzle pieces fit together perfectly at the end.

  • @cubby091398
    @cubby091398 หลายเดือนก่อน

    It reminds me of Algebra II in high school though this course is probably significantly harder than Algebra II. You do a very good job of it explaining the material.

  • @ginoedgarngomeni8500
    @ginoedgarngomeni8500 3 ปีที่แล้ว +4

    I haven't even finished yet but I feel so comfortable listening to this. It is amazing.

  • @mujtabahaider5798
    @mujtabahaider5798 4 ปีที่แล้ว +3

    You are Adding value in lives, God bless you

  • @joeMJ276
    @joeMJ276 4 ปีที่แล้ว +2

    Please never stop making your amazing videos!
    Youre a life saver

  • @vincentmashigo9595
    @vincentmashigo9595 4 ปีที่แล้ว +2

    I'm writing a test in two days and I didn't understand my lecturer but your videos helped me a lot and I like the fact that they're very shot compared to a 50 min lecture. Thank you very much.

  • @Nanis-World
    @Nanis-World 3 ปีที่แล้ว +2

    Great playlist! Completely underrated...Not sure if anyone struggled with this but years ago I couldn't understand what # to choose when multiplying the 2nd equation... So maybe this will help someone who doesn't understand how to come up with that #. I don't remember hearing how he came up with the number he used (-2) to multiply the 2nd equation by...so if you need things broken down as I did once...
    From my understanding, you "multiply each equation by a suitable number so that the two equations have the same leading coefficient"....for example -2 (0.5) = -x and so on and then continue solving

  • @trile9293
    @trile9293 3 ปีที่แล้ว +1

    You make me realize how beautiful math is

  • @tinktwiceman
    @tinktwiceman 4 ปีที่แล้ว +2

    Best Linear Algebra videos. Thank you so much!

  • @michaelbush4140
    @michaelbush4140 5 ปีที่แล้ว +2

    This video is really helpful! I am taking linear algebra this upcoming semester so I'm brushing up on it beforehand. I was wondering while at 17:08, is there a reason for not swapping R2 and R3? My first thought was to do this because the current R3 (0,1,1,0) is already solved in triangular form if it is swapped with R2? Thanks again for this series, I'm sure it will be a life saver !!

    • @HamblinMath
      @HamblinMath  5 ปีที่แล้ว +5

      Glad you're enjoying the videos. That would be an unnecessary step since you still have to do the same replacement operation, just with R2 instead of R3.

  • @mujtabahaider5798
    @mujtabahaider5798 4 ปีที่แล้ว

    What a lovely teacher,
    Now I can say, I love maths

  • @christophertech7462
    @christophertech7462 2 ปีที่แล้ว

    God bless you Sir for such an amazing video

  • @ahsanulhaq8056
    @ahsanulhaq8056 3 ปีที่แล้ว

    I haven't words to appreciate sir....

  • @Abelteamr
    @Abelteamr 15 ชั่วโมงที่ผ่านมา

    Thank you so much, Sir

  • @phanindrareddy4885
    @phanindrareddy4885 5 หลายเดือนก่อน

    Super ❤

  • @sofiastansbury7394
    @sofiastansbury7394 4 ปีที่แล้ว +5

    Hello, for the last example you provided, instead of R3 +1/2R2 could you simply do 2R3+R2 in which you would get x3= 2/7, x2= -2/7, x1= 29/7 as your ordered triple (29/7,-2/7,2/7)

    • @ameliaecheverria4108
      @ameliaecheverria4108 3 ปีที่แล้ว

      i was wondering the same exact thing! did you ever figure it out?

    • @kehv4289
      @kehv4289 3 ปีที่แล้ว +1

      I did it using your method originally, where you multiply R3 by 2 and add it to R2, but got the same answers as he did. I think it should work!

  • @_bruuuuuuuh
    @_bruuuuuuuh 9 วันที่ผ่านมา

    Why did we multiply -2 in the elimination method?

  • @NikosM112
    @NikosM112 3 ปีที่แล้ว

    13:06 I don't understand this in the bubble:
    4 -12 16 -16
    How did you get that?

    • @HamblinMath
      @HamblinMath  3 ปีที่แล้ว

      I multiplied Row 1 by 4.

    • @NikosM112
      @NikosM112 3 ปีที่แล้ว

      @@HamblinMath Thanks, sir

  • @lemyul
    @lemyul 6 ปีที่แล้ว +3

    appreciate it

  • @gcinilemsweli2474
    @gcinilemsweli2474 3 ปีที่แล้ว

    Thanks for the video

  • @powerentertainment719
    @powerentertainment719 2 ปีที่แล้ว

    This course help for Quantum mechanics? Or i should follow Gilbert?

  • @MrEvilHarmony
    @MrEvilHarmony 5 ปีที่แล้ว

    Hi James, I'm enjoying these videos a lot. Any good resource for practice problems? Thanks.

  • @anonymouzdwayne7332
    @anonymouzdwayne7332 4 ปีที่แล้ว +1

    Why did you use
    X(-2) to multiply the second equation, can’t you use other numbers like 3 or 4 ?

  • @ghsjgsjg53chjdkhjydhdkhfmh74
    @ghsjgsjg53chjdkhjydhdkhfmh74 4 ปีที่แล้ว

    Wow thank you so much!!

  • @XPookeyeX
    @XPookeyeX 3 ปีที่แล้ว

    are these lectures associated to a book by any chance?

  • @xolankolothi2522
    @xolankolothi2522 3 ปีที่แล้ว

    on the last problem why did u use 1/2 instead of 3 or 2, just as u did in the previous example. because there is no 1/2 in the matrix .

  • @KrishnaKuma-welcome
    @KrishnaKuma-welcome 4 หลายเดือนก่อน

    Thanks

  • @Atsam2kGaming
    @Atsam2kGaming 4 ปีที่แล้ว

    this is actually Gaussian elimination
    ? right ??

  • @rajneshjoshi8906
    @rajneshjoshi8906 5 ปีที่แล้ว

    God bless you

  • @saurabhsingh-ow7ue
    @saurabhsingh-ow7ue 5 ปีที่แล้ว

    thank you sir...

  • @itzchitraa
    @itzchitraa 3 ปีที่แล้ว

    Tqsm sir ;)

  • @JoaoPedro-pl2be
    @JoaoPedro-pl2be 4 ปีที่แล้ว

    thanks man

  • @ibrahimgudratli6345
    @ibrahimgudratli6345 4 ปีที่แล้ว

    Thank u so much

  • @Malison.G3G
    @Malison.G3G 3 ปีที่แล้ว +1