Row Echelon Form, Pivot Positions, Basic and Free Variables

This video defines row echelon form, pivot positions, basic variables, and free variables of an augmented matrix.

Пікірлер: 82

  • @johnpaul2021
    @johnpaul20214 жыл бұрын

    One of the few videos on youtube that actually explains these concepts. Thank you

  • @dreamerdude100
    @dreamerdude1004 жыл бұрын

    I'm so over my textbook. KZread videos have taught me more. Thanks!

  • @ryanjohnson7578
    @ryanjohnson75786 жыл бұрын

    Thank you! You made basic and free variables so much easy to understand the meaning of.

  • @aaronbaraiya3692
    @aaronbaraiya369210 ай бұрын

    This is the only video which explains it. Thanks I was able to complete 2 more of my homework problems

  • @Mathispower4u

    @Mathispower4u

    10 ай бұрын

    I am glad I could help. Thank you for taking the time to leave a comment. I appreciate it!

  • @jonathanx4540
    @jonathanx4540 Жыл бұрын

    Man you are the best, so good and calm at explaining. bless you

  • @zubairmaths-englishtvtutor6548
    @zubairmaths-englishtvtutor6548Ай бұрын

    Excellently explained. Thank you so much. I was just looking for some some help in this respect, and you extended this help. ❤

  • @hopeless8473
    @hopeless8473 Жыл бұрын

    Seriously, really a awesome video. And it has been the easier for your examples. Thank you so much🙂🖤🖤🖤

  • @user-ux2gz7sm6z
    @user-ux2gz7sm6z5 жыл бұрын

    Simple and easily understandable! Thank you.

  • @squidsword9795
    @squidsword97953 жыл бұрын

    Appreciate it, man. Somehow you make this stuff sound so simple.

  • @janakamohotti
    @janakamohotti2 жыл бұрын

    Great explanation. Thanks!!

  • @salatatoe6812
    @salatatoe68122 жыл бұрын

    Thanks man! Easy to understand.

  • @icee562
    @icee5625 жыл бұрын

    Basically if we can't solve for a certain variable, then we assume there is an infinite number of solutions to that variable. We can then substitute a generic dummy variable instead.

  • @anoopa5429
    @anoopa54292 жыл бұрын

    best explanation of this linear algebra concept. keep going...

  • @dylanedwards1879
    @dylanedwards1879 Жыл бұрын

    Very good video. Helped a lot!

  • @talhaqureshi3422
    @talhaqureshi34227 ай бұрын

    Respect from Pakistan 🇵🇰

  • @snehotoshbanerjee1938
    @snehotoshbanerjee1938 Жыл бұрын

    Excellent!!

  • @grey7480
    @grey7480 Жыл бұрын

    Very helpful Thank you so much.

  • @everythingnaruto5682
    @everythingnaruto56827 ай бұрын

    Perfectly explained, thank you!

  • @Mathispower4u

    @Mathispower4u

    7 ай бұрын

    Thank you for your comment!

  • @WajidAli-kt4ox
    @WajidAli-kt4ox Жыл бұрын

    great job!

  • @nasareuploads
    @nasareuploads Жыл бұрын

    If i knew you i would love to meet such type of Mathematics Teacher 🥺❤️

  • @Mark-nu2kd
    @Mark-nu2kd2 жыл бұрын

    amazing !!!! Thank you so much

  • @nofleal-morabi6120
    @nofleal-morabi61204 жыл бұрын

    I just liked this video, something that I usually don't do.

  • @lettingitrip5854
    @lettingitrip58546 жыл бұрын

    Brilliant. Thank you SO much.

  • @travisj5736
    @travisj57362 жыл бұрын

    Wow this helped so much!!

  • @nawoditregmi4977
    @nawoditregmi49772 ай бұрын

    Thankyouuu ! This really helped : )

  • @--11
    @--11 Жыл бұрын

    Thank you so much for helping me understand!

  • @Mathispower4u

    @Mathispower4u

    Жыл бұрын

    Happy to help!

  • @sepehremami9893
    @sepehremami98934 жыл бұрын

    i dont know what word to use to thank you!!!! there is no word!!!! my mine was getting f***ed... before i seached for this video thank you man...it was PERFECT

  • @themainfandom1499
    @themainfandom1499 Жыл бұрын

    Thank you sooooooooo so much

  • @YouMe-mf7ed
    @YouMe-mf7ed3 жыл бұрын

    thank you from California ahahha you saved a headache

  • @rickywang6354
    @rickywang63543 жыл бұрын

    You've done a great job with this video!!!!!!!!!!!!!!!!!!!!

  • @shahriarmim4696
    @shahriarmim46964 жыл бұрын

    8:42 actually the quote is from the book "Bet On Yourself: Life lessons to cultivate and create your own success" by Nicole Williams main quite is : "Sometimes it takes a good fall to really know the foundation on which you stand"

  • @furkankose.16
    @furkankose.164 жыл бұрын

    can someone explain what is the meaning of the last quote? i couldn't quite understand that.

  • @raghuramdevarayi5889
    @raghuramdevarayi58893 жыл бұрын

    Good Examples and Explanation. God Bless you. Good Job DONE.

  • @khanhphamgia1276
    @khanhphamgia12762 жыл бұрын

    The beginning of the video is supposed to show the reduced echelon form, the echelon form doesn't require the leading entries to be 1, they can be any non-zero value.

  • @abdirazak.a8336
    @abdirazak.a83364 жыл бұрын

    thank you boss

  • @balakrishnanr648
    @balakrishnanr648 Жыл бұрын

    good one

  • @dharma6662013
    @dharma66620136 жыл бұрын

    How do we express the basic variables in terms of the free variables, i.e. get a parametrisation for the solution space?

  • @sunsonny9132
    @sunsonny9132 Жыл бұрын

    There's a lot of exmples that don't have rows of zero at the bottom, are they still in reduced echelon form?

  • @khatcharuenlek4028
    @khatcharuenlek40283 жыл бұрын

    This video make me understand this concept ,Thank you

  • @muhammadusama146
    @muhammadusama1462 жыл бұрын

    Helpful

  • @zacharyzhu4959
    @zacharyzhu49595 жыл бұрын

    Is there a Linear Algebra section to this channel? Cuz this was sups helpful

  • @tanyatripathi8929
    @tanyatripathi89292 жыл бұрын

    Thankyou

  • @onlinework2340
    @onlinework23404 жыл бұрын

    free variables k lye..echlon and reduce echlon dono krny hoty?

  • @vincenttsushima8854
    @vincenttsushima88544 жыл бұрын

    Great lesson!

  • @andrewwoan
    @andrewwoan3 жыл бұрын

    wow this is amazing! thank you a lot!

  • @megb3513
    @megb35136 жыл бұрын

    In the example around 3:57, since there are 4 columns-3 rows=1, wouldn't the last column be a free column?

  • @yasminfarzan6371

    @yasminfarzan6371

    5 жыл бұрын

    The matrix is in an augmented form. The last column is the solution of the equations , therefore doesn't have any variables corresponding to it

  • @matchallie
    @matchallie2 жыл бұрын

    i literally started this video with no knowledge of this and now suddenly this makes sense

  • @Basu770
    @Basu7704 жыл бұрын

    Great Vid!

  • @madhusankawijerathne8435
    @madhusankawijerathne84355 жыл бұрын

    great work dude . keep it up

  • @zainasat
    @zainasat3 жыл бұрын

    Thanx

  • @savageshorts3475
    @savageshorts34753 жыл бұрын

    Thankyou for your explanation. Great thanks from india.

  • @shapeshifter150
    @shapeshifter1505 жыл бұрын

    That quote from Hayley tho

  • @rajanrattan1248
    @rajanrattan12482 жыл бұрын

    Just what you need to know. No bs

  • @tanvisardana8537
    @tanvisardana85372 жыл бұрын

    if q>p, then there are q-p free variables. so why are there 2 free variables in the last example?

  • @trijalsharma4471
    @trijalsharma44712 жыл бұрын

    🔥🔥🔥❤

  • @thomaswynosky2159
    @thomaswynosky21596 жыл бұрын

    Thank you.

  • @TaknikiManav
    @TaknikiManav4 жыл бұрын

    Thanks good explaination!!

  • @froggert119
    @froggert1195 жыл бұрын

    thank you!

  • @mehmet2247
    @mehmet22475 жыл бұрын

    Thank you so much

  • @MoMo-ue9ff
    @MoMo-ue9ff2 жыл бұрын

    Very helpful!!!

  • @onlinework2340
    @onlinework23404 жыл бұрын

    hlo Sir, kya leading point k lye 1 lzami hai???col 5 ko piviot col q nhi rkha?

  • @Stabby_1
    @Stabby_14 жыл бұрын

    bless you math is killing me rn but this was helpful

  • @kritikniraula9002
    @kritikniraula90022 жыл бұрын

    Appreciated!

  • @22ck80
    @22ck805 жыл бұрын

    Thank you ! It's really help me a lot.~~

  • @mustafizurrahman5844
    @mustafizurrahman58444 жыл бұрын

    Thanks dear sir

  • @missjdiva
    @missjdiva3 жыл бұрын

    If the pivot is 1, wouldn't it be called the reduced [row] echelon form?

  • @iRobotsGamer

    @iRobotsGamer

    3 жыл бұрын

    It's reduced row echelon form if the pivot is a 1 and is the only non-zero entry in the column. So 0s all above and below the pivot

  • @cali623
    @cali6233 жыл бұрын

    I found much clearer than my teacher my God

  • @kyoungsub
    @kyoungsub3 жыл бұрын

    I'm confused about the last example matrix. On the slides, it says if p (num of equation) is smaller than the q (num of unknowns), we would have q-p free variables. Last example, we have p=4, q=5, but 2 free variables. What happened?

  • @ajeesha9467

    @ajeesha9467

    3 жыл бұрын

    There are only 3 equations not 4 ( since last row is all zeros) Hence 5-3=2 free variables

  • @amberjha5974

    @amberjha5974

    2 жыл бұрын

    the 4th system is just zeroes, we can safely discard it. When we say q-p rule, we mean that that each equation has the leading column with a non-zero value.

  • @sebastianbejaoui9490
    @sebastianbejaoui9490 Жыл бұрын

    The rule for determining free variables doesn't make sense. A 3x3 matrix can still have a free variable.

  • @chrisbeharry1165
    @chrisbeharry11652 жыл бұрын

    For the Basic and Free Variables slide with "Consider a system of equations written as a matrix in row echelon form". You have your matrix in reduced *row* echelon form not row echelon form. Shit had me doubting my elementary row operations for a second

  • @Mathispower4u

    @Mathispower4u

    2 жыл бұрын

    Oh, I see your point now.

  • @chunchamf2937
    @chunchamf29372 жыл бұрын

    Don't keep subtitles I didn't see anything

  • @DWAINEMonster
    @DWAINEMonster2 жыл бұрын

    bro i am so stupid???

  • @Mr.Mustgohard

    @Mr.Mustgohard

    25 күн бұрын

    If so, then your not the only one. LoL the answers don't line up with the concept.