Why Linear Algebra?

Linear algebra studies the dynamics of the simplest possible interactions among multiple variables. Its fundamentals are essential to all areas of mathematics.

Пікірлер: 91

  • @donharrold1375
    @donharrold1375 Жыл бұрын

    Excellent description. Teaching mathematics is an art. Most lecturers fail by not explaining the nomenclature properly. They often assume students are familiar with complex notation. They often are not. Mathematics is a language like French or German - you need to learn the grammar and vocabulary to become proficient.

  • @AlbertoRivas13
    @AlbertoRivas134 жыл бұрын

    That intro was great man

  • @nathanwailes
    @nathanwailes10 жыл бұрын

    This is a great video! I have wanted to learn linear algebra for a few years now but have trouble staying motivated when I can't immediately apply the operations I'm learning to a real-world problem. Whenever I teach people to program I always start by teaching them how to make the computer move the mouse around, click on things, and type into the keyboard, because people can learn those few operations quickly and immediately use them to solve real problems.

  • @Nakameguro97

    @Nakameguro97

    9 жыл бұрын

    Nathan Wailes I had the same problem - I recommend MIT/OCW's lectures by Prof. Gilbert Strang on youtube. Learning linear algebra takes patience as the appreciation doesn't come unless you understand some theory behind how various techniques are derived. If you need practical motivation, just keep in mind that all of engineering depends on linear algebra: building bridges/skyscrapers/planes, data compression, optimization problems (like how long to leave traffic light red or operations research), machine learning, statistics, physics, chemistry, etc... Watch Strang's lectures multiple times, if necessary, for the ideas to sink in. If ideas get too abstract, think of actual instances (like when you are solving an actual system of equations) to anchor yourself.

  • @alkankondo89

    @alkankondo89

    7 жыл бұрын

    Thank you for this comment! I'm finding that I often have to be persistent in understanding the topics of Linear Algebra, watching and rewatching videos to reinforce my knowledge. Interestingly, I watched the "Big Picture of Linear Algebra" video by the professor you mentioned, Dr. Gilbert Strang, right before watching this video. As an additional recommendation, I really benefited from the "Essence of Linear Algebra" video series by the KZread user "3Blue1Brown". The graphics he produces and the insight he gives helps make many topics crystal-clear!

  • @Nakameguro97

    @Nakameguro97

    7 жыл бұрын

    alkankondo89 If you haven't seen them already, 3Blue1Brown's series on Linear Algebra on KZread is the ABSOLUTE BEST I have seen for giving me a geometric intuition of why a determinant, null space/column space, rank, bases, eigenvalues/vectors, etc are useful. It's SO good that one can intuit geometrically why the column space and the null space are orthogonal (a kind of conservation of total number of input dimensions)! Unfortunately, he just touched on dual vectors without going deeper into dual spaces, etc... MathTheBeautiful, also on KZread, has lectures given by a professor, that goes slower (sometimes too slow) than MIT's Strang, but is more rigorous than 3Blue1Blue. This series is also worth viewing. Good luck!

  • @cutcc
    @cutcc5 жыл бұрын

    I'm glad I stumbled upon this video--I think everyone should watch this before starting to learn Linear Algebra. I agree that it really is too abstract to begin with.

  • @jesseshaffer1315
    @jesseshaffer13155 жыл бұрын

    I only subscribed to your channel because your intro was so fun!! I loved the video! Thank you for sharing! ☮

  • @davidgutierrez8795
    @davidgutierrez87954 жыл бұрын

    Linear Algebra is the first course where you start seeing mathematical abstraction...then things become crazy

  • @artvandalay6161

    @artvandalay6161

    4 жыл бұрын

    Lol....🤣 I couldn’t agree more David!

  • @bernardofitzpatrick5403
    @bernardofitzpatrick54038 жыл бұрын

    love the way you explain so simply! thank you - great teacher!

  • @emeryarturo8991

    @emeryarturo8991

    3 жыл бұрын

    i guess it's kinda randomly asking but do anyone know a good place to stream newly released tv shows online?

  • @zachariahtroy6259

    @zachariahtroy6259

    3 жыл бұрын

    @Emery Arturo i watch on FlixZone. You can find it by googling :)

  • @ellisclark3024

    @ellisclark3024

    3 жыл бұрын

    @Zachariah Troy Yup, I have been using FlixZone for since april myself :)

  • @emeryarturo8991

    @emeryarturo8991

    3 жыл бұрын

    @Zachariah Troy thank you, I went there and it seems like they got a lot of movies there :D Appreciate it!

  • @zachariahtroy6259

    @zachariahtroy6259

    3 жыл бұрын

    @Emery Arturo you are welcome :D

  • @DeborahJB
    @DeborahJB8 жыл бұрын

    Good job as an overview. Thank you.

  • @NothingMaster
    @NothingMaster4 жыл бұрын

    Excellent introductory overview.

  • @RalphDratman
    @RalphDratman Жыл бұрын

    This is most helpful. Thank you for posting it. When at the end of the video you discuss using a matrix to perform operations from x_n to y_m, you seem to ignore the constant term(s). Some presenters exclude the constant term(s) altogether when discussing linear algebra. I'm not sure what to think about this. Does adding a constant term to each individual equation interfere with the use of matrices?

  • @chukchisemikujira
    @chukchisemikujira9 жыл бұрын

    I need that coffee grinder... Thanks for creating this video!

  • @Paulo-dd8vq
    @Paulo-dd8vq2 жыл бұрын

    Thank you. I was getting the exercises right. But I had no idea of what I was doing (or why). Now I know.

  • @camryhsalem5139
    @camryhsalem51392 жыл бұрын

    Best video about the subject 👍💯🌴

  • @fabioleonardo4680
    @fabioleonardo46802 жыл бұрын

    Ohh, man!!!! Your explanation is fantastic!!!

  • @jackdee1692
    @jackdee16928 жыл бұрын

    thank you. Finally all is clear

  • @nhabib114
    @nhabib1148 жыл бұрын

    Thank you for clarity and depth together. There are no shortcuts to rigor.

  • @davidmurphy563

    @davidmurphy563

    2 жыл бұрын

    There's a shortcut to rigor mortis.

  • @navsi2004
    @navsi20049 жыл бұрын

    Thanks very good video.

  • @markgreen2170
    @markgreen2170 Жыл бұрын

    that was really good, thank you!

  • @markkaravan4245
    @markkaravan42453 жыл бұрын

    Great explanation!

  • @harbirkaur4611
    @harbirkaur46113 жыл бұрын

    Thanks for this interesting introduction. Can you please share subsequent videos of the course also?

  • @ejededawe
    @ejededawe8 ай бұрын

    what’s the reason for the list at 1:30?

  • @suvammondal698
    @suvammondal6983 жыл бұрын

    Please try to make a full playlist of linear algebra

  • @danielashleybaker
    @danielashleybaker5 жыл бұрын

    Holy moly. 30 second intro.. at the time of my viewing that's 66,000 views, which is 550 hours wasted on that intro.

  • @RaviKumar-xt3nq
    @RaviKumar-xt3nq4 жыл бұрын

    which book is best for linear algebra?????

  • @mthemaniac
    @mthemaniac8 жыл бұрын

    Good video but you need to balance your audio. The music is way too loud relative to the dialog. You probably already know this so hopefully any future Linear Algebra videos will have it resolved.

  • @TheiLame
    @TheiLame9 жыл бұрын

    Is linear algebra similar to multidimensional arrays in programming in any way ?

  • @Nakameguro97

    @Nakameguro97

    9 жыл бұрын

    ***** A multidimensional array in programming can be used to hold the entries of a matrix in linear algebra. However, the techniques and operations involved in linear algebra are exponentially more sophisticated. For example, in functional programming, you learn that data and functions are essentially the same. In linear algebra, you learn why: a matrix is simply a function which allows you to apply a linear transform to a vector. Chaining functions is equivalent to multiplying matrices together. The actual applications of linear algebra are also very broad. The most basic operation is solving a system of equations, but in the general case, this can even be applied to linear differential equations or any operators/functions which are closed under multiplication and addition. Later, you derive how least-squares best-fit line algorithms are solved in closed form. Even video/audio data compression is based on picking a good basis using linear algebra. A youtube comment cannot do the subject justice - but you will learn that almost all of engineering must use linear algebra in some way.

  • @azestical6566

    @azestical6566

    5 жыл бұрын

    neRD LOL

  • @generalezaknenou
    @generalezaknenou2 жыл бұрын

    This is underrated !

  • @user-zj4mk7wk8y
    @user-zj4mk7wk8y6 жыл бұрын

    Great intro vid! Why not go on and produce more awesome material

  • @rktiwa
    @rktiwa3 жыл бұрын

    This is most soporific branch of all mathematics.

  • @christopherwalsh3101
    @christopherwalsh31014 жыл бұрын

    I is learnt'd something.

  • @AbrahamLozadaabe
    @AbrahamLozadaabe5 жыл бұрын

    An addition is not a linear transformation. It sends the zero vector to a non zero vector.

  • @martinsanchez-hw4fi

    @martinsanchez-hw4fi

    3 жыл бұрын

    That is a clarificaton needed. The linear function in calculus is not a linear transformation, but an affine one

  • @cortex9712
    @cortex97128 жыл бұрын

    Chevere

  • @mgtow1592

    @mgtow1592

    4 жыл бұрын

    un saludo a todos los colombianos!

  • @alexpalmer79
    @alexpalmer79 Жыл бұрын

    sick intro bro

  • @amythestgemini1902
    @amythestgemini19026 жыл бұрын

    I'd it important I learn algebra 1 and 2 first before leaving liner algebra? I'm using khan academy and just need some guidance.

  • @samisiddiqi7814

    @samisiddiqi7814

    6 жыл бұрын

    Amythest Gemini Take a crash course in all of them, then get in depth.

  • @restitutororbis964

    @restitutororbis964

    6 жыл бұрын

    Amythest Gemini Before you even get into linear algebra you do need to know algebra. Linear algebra is simply algebra that uses matrices and more variables, but at the same time making algebra simpler. Also I really recommend you tackle linear algebra 1 before calculus 3, ODEs, and vector analysis, you will have a much simpler time with Multivariable calc.

  • @arj123sub

    @arj123sub

    4 жыл бұрын

    Nice explanation

  • @Hajjmusic_

    @Hajjmusic_

    4 жыл бұрын

    Yes algebra 1 geometry algebra 2

  • @jl1835
    @jl18353 жыл бұрын

    So Linear Algebra is good for ... being the tangent line for more complicated functions...

  • @oxm18
    @oxm189 жыл бұрын

    Does linear algebra without matrices exist?

  • @titanarmy4116

    @titanarmy4116

    8 жыл бұрын

    does the english alphabet without the letter a exist?

  • @Zzzip13Strike

    @Zzzip13Strike

    7 жыл бұрын

    Mario Mirdita Yeah, if you write everything out in regular equations or maybe even just sentences

  • @titanarmy4116

    @titanarmy4116

    7 жыл бұрын

    Zzzip13Strike then it wouldnt be linear algebra. Linear algebra is the set of tools and techniques to solve systems of equations. Solving them via another method wouldnt be linear algebra.

  • @faisalsal1
    @faisalsal14 жыл бұрын

    A random and disjoint sequence of thought.

  • @kparag01
    @kparag014 жыл бұрын

    Is there any use of linear algebra at age 50?

  • @MrJozzs123

    @MrJozzs123

    2 жыл бұрын

    No. Once you turn 50, linear algebra becomes useless.

  • @tkrdg7885
    @tkrdg78853 жыл бұрын

    Foreplay can be short , for sure.........

  • @douglasstrother6584
    @douglasstrother65844 жыл бұрын

    He packs a lot of ideas into one short video. "Topics in a Linear Algebra Course" mathworld.wolfram.com/classroom/classes/LinearAlgebra.html

  • @ahmedouhacen8848
    @ahmedouhacen8848 Жыл бұрын

    Great video, but the music in the start is annoying

  • @thinkmovies4565
    @thinkmovies45654 жыл бұрын

    why are matrices used in linear algebra. Why not any other data structure like a tree or graph?? I find in all books I've seen about Linear Algebra all use the same concept. Please help me I need to clear this doubt. I know matrix consists of same type of elements but still, couldn't I use any other data structure for the solving of linear equations ?

  • @GuyMichaely

    @GuyMichaely

    4 жыл бұрын

    If you find a way to effectively reason with and manipulate vectors and vector spaces using a data structure other than a matrix, go for it and publish your results. Matrices are used because they allow us to reason about vectors and vector spaces in a useful way

  • @kayllon7
    @kayllon77 жыл бұрын

    i'm brazilian and i watch your channel.

  • @lucasm4299

    @lucasm4299

    6 жыл бұрын

    Kayllon Duarte A Brazilian learning math?! A miracle

  • @canned_heat1444

    @canned_heat1444

    5 жыл бұрын

    Se bem que o Brasil é um dos tops na matemática, em uma visão mundial.

  • @Thesphaxers
    @Thesphaxers9 жыл бұрын

    That cheesy intro, but good video :D

  • @robertlast5189
    @robertlast51893 жыл бұрын

    More about what LA is, rather than what the title proposes, why?

  • @karthik-ex4dm
    @karthik-ex4dm5 жыл бұрын

    *** Hippie Alert*** Skip to 0:33

  • @Zonnymaka
    @Zonnymaka4 жыл бұрын

    is he a freshman?

  • @Xardas_
    @Xardas_3 жыл бұрын

    The music at first is too loud and irritating

  • @lemonsavery
    @lemonsavery6 жыл бұрын

    Not a fan of the intro.

  • @abid5330

    @abid5330

    5 жыл бұрын

    I am a fan of the intro.

  • @zPoiison

    @zPoiison

    4 жыл бұрын

    @@abid5330 who?

  • @rahmibae2827
    @rahmibae28273 жыл бұрын

    Wedtaena.Wedtara.Wedteafal.

  • @ramizhossain9082
    @ramizhossain90823 жыл бұрын

    This is more calculus than linear

  • @onepiece4716
    @onepiece47165 жыл бұрын

    this guy is like a worse version of math antics

  • @markobe08
    @markobe085 жыл бұрын

    Wtf is with that intro. Jesus!

  • @user-nj6sk3qz2y
    @user-nj6sk3qz2y8 жыл бұрын

    What an awful awful intro. No need for an intro??

  • @pressgreen

    @pressgreen

    8 жыл бұрын

    +Austin Schrader Yeah now that my ears are blown out lets learn some linear algebra... BYPASS INTRO >>>>>> 0:32

  • @sivani7762

    @sivani7762

    3 жыл бұрын

    Needed for beginners.

  • @balaportejean7015
    @balaportejean70154 жыл бұрын

    thx bro Jesus is the Son of God he loves you Believe in him and repent

  • @MrPukeCat
    @MrPukeCat9 жыл бұрын

    Why Linear Algebra folderol? Because the undergraduate fools don’t know that linear algebra software is readily available on the internet.

  • @trexinvert

    @trexinvert

    9 жыл бұрын

    Take pity on the fools who have "successfully" graduated from 12 years of being told to sit down/shut up/do what the teacher says. Few can concurrently master the punkrock/Do-It-Yourself attitude/values at the same time? If so, the whole "business" of college education/textbook revenues would collapse if kids were taught to use hyperphysics.edu.

  • @mjhSix

    @mjhSix

    9 жыл бұрын

    trexinvert Pity the fool who only knows how to push buttons instead of actually working the problems out for himself. (O.K. fine! I'm 52 but that doesn't mean I'm over the hill yet!)

  • @alfonshomac

    @alfonshomac

    8 жыл бұрын

    +mjh0123Six3 I'm right there with you, just 20 years younger. I like to numpy.linalg or defend myself in octave (free Matlab 'clone') as well but I like that it's not made up of black boxes and if one were to take that away from me, I'm just going to take a little longer.

  • @133839297
    @133839297 Жыл бұрын

    Feedback: The intro is too long and unpleasant.