Find Null Space and Nullity of a Matrix | Linear Algebra

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  • Опубликовано: 27 окт 2024

Комментарии • 70

  • @WrathofMath
    @WrathofMath  5 месяцев назад +3

    Help me produce this course by joining Wrath of Math to access exclusive and early linear algebra videos, plus lecture notes at the premium tier!
    ruclips.net/channel/UCyEKvaxi8mt9FMc62MHcliwjoin
    Linear Algebra course: ruclips.net/p/PLztBpqftvzxWT5z53AxSqkSaWDhAeToDG
    Linear Algebra exercises: ruclips.net/p/PLztBpqftvzxVmiiFW7KtPwBpnHNkTVeJc

  • @PunmasterSTP
    @PunmasterSTP 2 месяца назад +6

    When I first took a linear algebra class, I think it was around the time we got to the null space that I started to get rather confused. Thanks for putting together these lectures to help us learn (and re-learn) the material and clear up our misunderstandings!

  • @advitranawade3039
    @advitranawade3039 9 месяцев назад +28

    Detailed, to-the-point videos in a modern reaction vid type format? Super creative!

  • @btsloveclub
    @btsloveclub Год назад +15

    took me just a few mins to digest the concept and now i feel confident, most thanks to you!!

  • @Snigkar
    @Snigkar Год назад +15

    deeply appreciate your efforts. step by step thorough explanation helps understand the concept well. thank you so much😊 (by this point, i wish all my math syllabus had videos by you)

    • @WrathofMath
      @WrathofMath  Год назад

      So glad to help - thanks for watching! I hope to have full playlists on all undergrad math courses in due time!

  • @parkerstewart8454
    @parkerstewart8454 Месяц назад +1

    This was the single most helpful math video I have ever watched. Thank you.

    • @WrathofMath
      @WrathofMath  Месяц назад

      So glad to hear that - thanks for watching!

  • @RyantheCanuckpirate
    @RyantheCanuckpirate 3 месяца назад +1

    What a lovely video. There's a smooth progression from step to step without our time being wasted

  • @a_mysterious_creature
    @a_mysterious_creature 6 месяцев назад +1

    Nullspace was melting my brain. Thank you so much!

  • @TheThreeMusketeers09
    @TheThreeMusketeers09 9 месяцев назад +2

    You explain linear algebra a million times better than my professor, thanks man!

  • @S9PLUSPHOTOS
    @S9PLUSPHOTOS 7 месяцев назад +4

    I have an exam tm.You’re videos are a life saver.

  • @user_a-i1u
    @user_a-i1u Год назад +5

    It's very informative for my exams, thanks man

    • @WrathofMath
      @WrathofMath  Год назад +2

      Glad to help, thanks for watching and good luck!

  • @temirbek2004
    @temirbek2004 11 дней назад +1

    Thanks, it was really easy to understand❤

  • @joonk2
    @joonk2 7 месяцев назад +1

    appreciate so much! i had hard time to understand AX = 0, luckily i found this precious lecture so that makes me go to next step! thank you again for sharing this wonderful video.

  • @Bedoroski
    @Bedoroski 11 месяцев назад

    You may not the almight professor that masters every subject, but I appreciate such effort dedicated into explaining it so smoothly. Please keep it up

  • @existentialrap521
    @existentialrap521 Год назад +1

    Looking good, bro. Good review. Doing some statistics theory proofs and oof they rely hard on this stuff. Thanks!

  • @akselmc01
    @akselmc01 9 месяцев назад +1

    Great explanation! Now I feel a bit more secure in my math exam tomorrow!

    • @WrathofMath
      @WrathofMath  9 месяцев назад +1

      Glad it helped!

    • @PunmasterSTP
      @PunmasterSTP 2 месяца назад

      How'd the rest of your linear algebra class go?

  • @SzTz100
    @SzTz100 6 месяцев назад

    So kind of you to do these very educational videos, thank you.

  • @bat_man1089
    @bat_man1089 Год назад +1

    please make videos on limits and continuity in matric space also on their properties

  • @thenewdimension9832
    @thenewdimension9832 Год назад

    Thank-you so much you helped me in real analysis and now here also ❤❤❤❤❤❤❤❤
    May God bless you !

  • @henrywoo1668
    @henrywoo1668 Год назад +1

    Thank you Sir for your great video . Your explanation is very clear !😀

  • @agm8554
    @agm8554 6 месяцев назад

    That helped out a lot! Thanks!

  • @SaidaNarimanli
    @SaidaNarimanli Год назад

    thank you, your explanation is very clear, and this video is very helpfull, all your videos are great

  • @aryanshrajsaxena6961
    @aryanshrajsaxena6961 6 месяцев назад

    Leading variables correspond to those positions which appear first in the reduced row echelon form

  • @ProgressiveVoice
    @ProgressiveVoice Год назад

    Great vid much thanks!

    • @WrathofMath
      @WrathofMath  Год назад

      Glad to help, thanks for watching! Much more linear algebra on the way!

  • @phymadori545
    @phymadori545 8 месяцев назад +1

    Super clear explanation from the definition to how to do it. Thank you.

    • @WrathofMath
      @WrathofMath  8 месяцев назад

      Glad it was clear, thanks for watching!

  • @successorof68
    @successorof68 Год назад

    Are you ever planning to do advanced linear algebra course? These videos are nice to review some concepts but would be better if you are able to do more rigorous L.A. concepts.

    • @WrathofMath
      @WrathofMath  Год назад +2

      I would like to, but need to make more basic videos first that are relevant to more people to pay for the production of those more niche courses. As soon as a lot of my basic videos break into the pre-algebra search rankings, I’ll be able to make a lot more advanced stuff!

    • @successorof68
      @successorof68 Год назад

      @@WrathofMath I understand. Good luck!

  • @chyldstudios
    @chyldstudios Год назад +1

    well done.

  • @thenewdimension9832
    @thenewdimension9832 Год назад

    If possible please make Playlist separately ,will be helpful to find videos 😊

    • @WrathofMath
      @WrathofMath  Год назад +2

      Do you mean a linear algebra playlist? I already have one, it is linked in the description. However it is currently unlisted - meaning you can only access it with the link. This is just because it’s very small right now, and I don’t want to clutter my playlist space with small playlists, but it will be in the description for all my Lin alg videos, and will be public when it has more content! Let me know if you have any topic requests and thanks a lot for watching!

  • @Melixmn
    @Melixmn 6 месяцев назад

    Wow,awesome thank you

    • @WrathofMath
      @WrathofMath  6 месяцев назад

      Glad to help, thanks for watching!

  • @fortyung
    @fortyung 6 месяцев назад

    Is it safe to say that the number of free variables is the null space?

  • @trendythings163
    @trendythings163 12 дней назад

    thanks

    • @WrathofMath
      @WrathofMath  11 дней назад

      You are welcome, thanks for watching!

  • @gouravmehta4030
    @gouravmehta4030 Год назад

    Appreciated 👌

  • @bethusilegamedze946
    @bethusilegamedze946 2 месяца назад

    When you were forming the equation, X2 was Zero(0x2) but now in the matrix it is one(x2), how?

    • @WrathofMath
      @WrathofMath  2 месяца назад

      I'm not sure what you mean, do you have a timestamp/can you be more specific?

  • @atulsomkuwar5671
    @atulsomkuwar5671 2 месяца назад

    i am not understood how 1st roe elements changed if i am going proper echelon form your matrix is differnt than me also i amnot getting last row last element is not getting zero

  • @kunraiyan
    @kunraiyan Год назад

    3:57 why write x2,x4 andx5 and not leave them as 0, in accordance with the equations above (in blue)?

    • @WrathofMath
      @WrathofMath  Год назад

      When we solved for the leading variables in the preceding step we found restrictions on x1 and x3. We found no restrictions on x2, x4, and x5. So when I consider the column vector [ x1, x2, x3, x4, x5 ], what is x1? Well, from our work we found x1 = 2x2 + x4 - 3x5. What about x2? Well, x2 has no restriction, so all we can say is x2=x2. If we had found x2=0, we would have written that, but we found no restriction on x2 nor the other free variables x4 and x5. Does that help?

    • @kunraiyan
      @kunraiyan Год назад

      @@WrathofMath yes, thank you.

  • @dyllislee326
    @dyllislee326 7 месяцев назад

    may i know why x2, x4 and x5 are free variables?

    • @forsboynewtec9726
      @forsboynewtec9726 5 месяцев назад

      They don’t have leading 1s, X1 and X2 are not free since they have leading 1s

  • @angelgray8899
    @angelgray8899 5 месяцев назад

    2 pivots and 5 colums. 5-2= 3

    • @AnasA.Ansari
      @AnasA.Ansari 3 месяца назад

      Does this holds for every example?
      Any concept behind your generalization?

  • @Beyondfutura
    @Beyondfutura 8 месяцев назад

    I think You'r RREF is wrong. Please cionfirm it mine's comes different????🤔🤔🤔🤔🤔🤔🤔

  • @xolileposwa4924
    @xolileposwa4924 2 месяца назад

    😋😋😋

  • @ojk_9446
    @ojk_9446 4 месяца назад

    made it too complicated useless video

  • @brotherdom7661
    @brotherdom7661 Год назад +3

    so basically Null space is = to how many free spaces (or free variables, doesn't matter how you say it) there are