Intro to VECTOR FIELDS // Sketching by hand & with computers

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  • Опубліковано 11 жов 2024

КОМЕНТАРІ • 112

  • @mwaleed2082
    @mwaleed2082 4 роки тому +120

    Khan academy and 3B1B officially have competition.

    • @DrTrefor
      @DrTrefor  4 роки тому +40

      haha that's great competition to have!

    • @Alannnn14
      @Alannnn14 3 роки тому +13

      Dr trefor joins the battle*. Smash Bros theme

    • @danielmrd1961
      @danielmrd1961 3 роки тому +2

      3b1b ❤️, now I admiring Dr Trefor

    • @copernicus6420
      @copernicus6420 7 місяців тому

      Dr Trefor is better.

  • @andrewgrebenisan6141
    @andrewgrebenisan6141 4 роки тому +69

    You are a phenomenal instructor, one of the best on youtube I would say :) I always get your videos on first viewing!

    • @DrTrefor
      @DrTrefor  4 роки тому +7

      Thanks so much!

    • @jeffreyfrank6998
      @jeffreyfrank6998 3 роки тому

      i know im asking the wrong place but does anybody know a tool to get back into an Instagram account?
      I was stupid lost the login password. I appreciate any tricks you can offer me.

    • @jeffreyfrank6998
      @jeffreyfrank6998 3 роки тому

      @Kristopher Charles Thanks so much for your reply. I found the site on google and im in the hacking process atm.
      Seems to take a while so I will reply here later when my account password hopefully is recovered.

  • @lewiduressa
    @lewiduressa 2 роки тому +6

    Dr. Trefor, you explain the content very very well. I am currently in Calc 3 with good grades and understanding. Without your videos, it would have been VERY VERY difficult for me to understand what I learn in lectures. You explain not just the what but the WHY, and that has helped me so much!! The visualization that you use has been SOOO much helpful too. And you posted the whole course!!! In 10 to 20 minutes, you explain things way better than what I get from attending a 1 hour lecture. Thank you very much!!! God bless you

  • @pruthveshmandle4978
    @pruthveshmandle4978 Рік тому +3

    This is how mathematics should be taught. Thank you so much sir. Only after watching your videos I'm able to get the idea behind the concept.

  • @CocoaMilka
    @CocoaMilka 3 роки тому +21

    You've been my go to for any topic in Calc III, the visualizations are extremely helpful! Thank you so much :D

  • @benishaniroula5104
    @benishaniroula5104 2 роки тому +5

    God bless you! I cannot imagine how difficult Calculus-3 would be without your help.

  • @مادبمرنت
    @مادبمرنت 3 роки тому +4

    U are a legend. Am from oman. And the picture u put it's for Oman and Arabien see.. that's make me like u more. Haha. Realy thanks

  • @shmkrar1153
    @shmkrar1153 Місяць тому +1

    Thank you so much. I was not taught the procedure to plot and had some misconceptions. Now I get it. Thank you so much!

  • @joejoeman3645
    @joejoeman3645 3 роки тому +7

    Love yours channel, appreciate you. You’ve made this semester so much easier!

  • @CharukaNiluminda-w7h
    @CharukaNiluminda-w7h 7 місяців тому +1

    exactly this is the meaning of what is the learning, nice job

  • @kaichenniu3776
    @kaichenniu3776 10 місяців тому +2

    You are so awsome! One of the best math teachers in UA-cam. Thank you

  • @catalina3710
    @catalina3710 3 роки тому +3

    I really enjoy your videos, best channel ever to learn Multivariable calculus and vectorial calculus. Greetings from Colombia!

  • @Patrick-qr7tr
    @Patrick-qr7tr 3 роки тому +4

    You are such an inspiring and professional Math teacher I have ever seen in my life! I wish I could have you as my math teacher at UVIC!

  • @krishnankutty1483
    @krishnankutty1483 2 роки тому +1

    The best video I have ever seen on Vector field. I wish I had seen this video in my engineering period.

  • @mdabusayem8755
    @mdabusayem8755 4 місяці тому +1

    best video on vector calculus i have ever seen...hats of to u man

  • @viveksudhir2479
    @viveksudhir2479 3 роки тому +9

    The problems with these chapters is the lack of picturisation in the textbooks. So we don't get clear ideas. And the best and perfect solution to this problem is Dr Trefor Bazett. The videos you are making is going to be of unimaginable help for a lot of students out there. Its just a matter of time before knowing about this channel. PLS DONT STOP MAKING THESE WONDERFUL VIDEOS SIR. KUDOS!

    • @DrTrefor
      @DrTrefor  3 роки тому +3

      Visualizations are so important!

  • @157-nikhil8
    @157-nikhil8 3 роки тому +1

    your explanation is too good ,it is easier to understand every concept

  • @sonamgyeltshen8713
    @sonamgyeltshen8713 Рік тому +2

    I do really appreciate the conceptual understanding u give us

  • @mreith80
    @mreith80 3 роки тому +2

    I’ve got to say your videos are great if I were to make one suggestion it would be to slow down your speech a little bit you seem very excited which is awesome but for a laid-back dude like me it was a bit overwhelming how overtly excited you are. That said I’m looking to get into vector calculus and linear algebra and I’m wondering where a good starting point is because after watching your videos I realize there’s a lot of fundamental theoretical knowledge that’s required and so where would a good base be because like you I’m very ambitious but sometimes I have to measure my ambition with a modicum of patience. Keep making these amazing videos and I hope you read the comments. A convivial Thursday to you!

  • @vikramnagarjuna3549
    @vikramnagarjuna3549 4 роки тому +5

    Excellent sir. Please increase video duration at least 20 min especially for Vector calculus topics. They are very helpful for Physics. Future heroes are waiting here: Gauss, Stokes , Green's

    • @DrTrefor
      @DrTrefor  4 роки тому

      haha yup all those are coming. The idea with this playlist is there will be many shorter videos over the next month or two:) Will try to hit everything.

  • @beabee256
    @beabee256 2 роки тому +1

    You are saving my life with these videos. We use Stewart (Multivariable Calculus) in my class and I 'sort of understand' but this is sooooo helpful! Thank you!

    • @DrTrefor
      @DrTrefor  2 роки тому +2

      I don’t mind Stewart, but sometimes I think it lacks a solid graphical understanding

    • @beabee256
      @beabee256 2 роки тому

      @@DrTrefor Indeed!!

  • @ΓιώργοςΤ-ε9τ
    @ΓιώργοςΤ-ε9τ 3 роки тому +2

    Dr. Trefor thanks for your videos!Amazing work!!!

  • @PinakiSwain
    @PinakiSwain 2 роки тому +2

    Excellent introduction. I really enjoyed how you explained the visualisation part. I find it hard to explain what a tensor is, hopefully, I will get some clues in the gradient of vector field video.

  • @sherin5566
    @sherin5566 3 роки тому +1

    I was trying to understand differential geometry...this video helped a lot..Thank you so much sir

  • @mystiqg6248
    @mystiqg6248 5 місяців тому +1

    its crazy how different some institutions can teach calculus. I'm learning everything in your calc iv class in my calc 3 class, but not everything in your calc 3 class is in mine. also we use pqr for vector notation

  • @olivioarmandocordeirojunio8280
    @olivioarmandocordeirojunio8280 3 роки тому +2

    Thanks sir. Your explanations are very good and will help me a lot in understanding this outstanding subject. I intend to be a lifelong learner and you will be an important part in my journey.

    • @DrTrefor
      @DrTrefor  3 роки тому +1

      Life long learning is so important:)

  • @sofiamansilla3021
    @sofiamansilla3021 3 місяці тому +1

    SO GOOD!

  • @arielfuxman8868
    @arielfuxman8868 3 роки тому +3

    You are the best

  • @capyargentino
    @capyargentino 3 роки тому +1

    Thank you for your videos, greetings from Argentina!

  • @skvsatish5277
    @skvsatish5277 3 роки тому +1

    Mind blowing 😲

  • @scholar-mj3om
    @scholar-mj3om Рік тому +1

    Marvelous💯💯

  • @mustafizurrahman5699
    @mustafizurrahman5699 7 днів тому

    Mesmerizing

  • @muskankoul9834
    @muskankoul9834 3 роки тому +1

    Thanku 😊 so much sir
    U have cleared my concept

  • @thewhyquestion5589
    @thewhyquestion5589 2 роки тому +1

    Very very thank you sir you helped me very much

  • @tobi827
    @tobi827 2 роки тому

    Started learning about vector fields after watching an anime where a character had the most OP ability because he could manipulate, transform, control and reflect any vectors.
    I find knowing about vector fields in itself a superpower.

  • @giri476
    @giri476 3 роки тому +1

    Thank you Sir amazing work.......

  • @continnum_radhe-radhe
    @continnum_radhe-radhe 2 роки тому +1

    Thank you so much sir 🔥🔥🔥

  • @robertoberidojr.435
    @robertoberidojr.435 3 роки тому +1

    U're a genius

  • @prasannaraman3546
    @prasannaraman3546 3 роки тому

    Dear sir!.. U r just a GEM💖

  • @kevincarvalhodejesus4473
    @kevincarvalhodejesus4473 3 роки тому +1

    awesome explanation, thank you so much!

  • @jayanthromale3389
    @jayanthromale3389 3 роки тому +1

    You are excellent sir

  • @HosRo4161
    @HosRo4161 Рік тому

    Wonderful!

  • @storgerbenevolent5678
    @storgerbenevolent5678 3 роки тому +1

    Thank you Sir! Amazing work here!

    • @DrTrefor
      @DrTrefor  3 роки тому +2

      Thank you kindly!

  • @chyldstudios
    @chyldstudios 4 роки тому +1

    Amazing! Do more videos on vector fields and how you would apply them to a real-world use case.

    • @DrTrefor
      @DrTrefor  4 роки тому

      Indeed, I have a whole playlist on vector calc coming out over the next month:)

    • @chyldstudios
      @chyldstudios 4 роки тому

      @@DrTrefor can you discuss what a field is - in general. And how that applies to electric fields or magnetic fields or elevation fields.

    • @carultch
      @carultch Рік тому

      @@chyldstudios Field in this context means function of space. Like a temperature map, gives temperatures at each geographical location. A temperature map is a representation of a temperature field, which is an example of a scalar field. A scalar function of each point in space. Another example of a scalar field, would be an elevation map. Elevation is the scalar, while the x-position and y-position is the point in space as the input to this scalar function.
      A vector field specifically, is a function of space that gives you a vector quantity at each point, rather than a scalar function. The most common examples you see of applications of vector fields, are velocity vector fields of fluid flow, and force fields, like the electric and magnetic fields. Force fields give instructions to a body sensitive to the force field, for what force it should experience at each location in space, based on the applicable property of matter (e.g. electric charge).

  • @Dr.MuhammadZubair-p6z
    @Dr.MuhammadZubair-p6z 11 місяців тому +1

    Dear Dr. can you teach this how can we draw vector field of a 2D or 3D vectors in geogebra?

  • @davidcorbett2170
    @davidcorbett2170 3 роки тому +1

    Thank you !

  • @ileanadominguez6055
    @ileanadominguez6055 2 роки тому

    Thank you very much for your videos!

  • @gokturkmath3887
    @gokturkmath3887 2 роки тому

    Thank you very much for your efforts

  • @arsenalaman6493
    @arsenalaman6493 4 роки тому +2

    You're really amazing sir......the way you explain I loved it...
    Thank you very much sir.
    #Terfor bazett

    • @DrTrefor
      @DrTrefor  4 роки тому +1

      Glad you enjoyed!

  • @eee_bangla
    @eee_bangla 2 роки тому +1

    tnx

  • @feynstein1004
    @feynstein1004 4 роки тому +6

    Hmm so vector fields are just vector functions? I can't wait to see this applied to electromagnetic and gravitational fields lol. Although, I think they're tensor fields, not vector 🤔

    • @DrTrefor
      @DrTrefor  4 роки тому +2

      Yes (with the condition that the domain and codomain are both the same dimension). But the main point of vector calc isn't that the fundamental object is all that unfamiliar, instead it is that it has a lot of physical significance and we can do all sorts of physical things with it like flux and so forth. Haha one of these days I may upgrade to the tensor view which is a nice generalization

    • @feynstein1004
      @feynstein1004 4 роки тому

      ​@@DrTrefor Oh I can't wait for that :)

    • @kiddjmadd
      @kiddjmadd 3 роки тому

      +1 for some higher order tensor examples (stress/strain?) and notation. Great series!

  • @mr.misbah7577
    @mr.misbah7577 4 роки тому +1

    Please make a full linear algebra course for math 1st year student.

    • @DrTrefor
      @DrTrefor  4 роки тому

      already made, check out the playlist on my channel:)

  • @justsaadunoyeah1234
    @justsaadunoyeah1234 8 місяців тому

    Wowie

  • @bijoythewimp2854
    @bijoythewimp2854 3 роки тому +2

    For the algorithm.

  • @edidiongedemeka2096
    @edidiongedemeka2096 10 місяців тому

    you legend

  • @naveennaidu9064
    @naveennaidu9064 2 роки тому

    Could u pls pls pls make intuitive videos on complex variables as well? Pls pls professor

  • @RVega-ls5ei
    @RVega-ls5ei 5 місяців тому

    Teacher, where are the exercises to put on practice my knowledge? 🥺

  • @frankie8086
    @frankie8086 Рік тому

    Am I correct to assume that by the definition of a vector field, a vector field is a function F mapping any vector space V to itself? Thanks!

  • @barrjohnm
    @barrjohnm 3 роки тому +2

    what type of software do you use to graph vector fields?

    • @DrTrefor
      @DrTrefor  3 роки тому +4

      This is all matlab

    • @barrjohnm
      @barrjohnm 3 роки тому

      @@DrTrefor thank you very much. I will have to learn Matlab.

  • @jonpritzker9709
    @jonpritzker9709 Рік тому

    Question at 2:25, why does the vector field have to map R^n to R^n and not some other dimension? Eg we have a basketball (in R^3) that has a temperature at every point. Couldn't that temperature just be in R^1 ? Would that *not* be a vector field?

  • @muskankushwah8406
    @muskankushwah8406 2 роки тому +1

    What does it mean when you said for two dimensional input , we have two dimensional output and it lead to a 4d graph , does it is in the context of single or multivariable calculus or anything else?

    • @DrTrefor
      @DrTrefor  2 роки тому +1

      Just broadly speaking, if you want to show two inputs and two outputs at the same time, that is four degrees of freedom you have to figure out how to display graphically

  • @chandrashekarramachandran9769
    @chandrashekarramachandran9769 2 роки тому +2

    find me a better teacher than this guy. I'll Wait

  • @PhysicssperspectiveTamil
    @PhysicssperspectiveTamil 3 роки тому

    😍

  • @allendarby1578
    @allendarby1578 Рік тому +1

    Why is a vector field defined from N dimensional space to N dimensional space? What if we want a plane of 3D vectors?

    • @DrTrefor
      @DrTrefor  Рік тому +1

      That's fine, but we are mostly interested in the NxN case (example 3D vectors in 3 dimentions) and that special case has results that only apply to it.

    • @allendarby1578
      @allendarby1578 Рік тому

      @@DrTrefor ok thanks for clarifying

  • @tigrania34
    @tigrania34 3 роки тому

    Sir why didn't you take modulus with magnitudes i.e. F(x,y)=|m|i^+|n|j^

  • @physicslover1950
    @physicslover1950 4 роки тому

    Is there an android app to plot vector fields ? I don't mean only playstore app. Any aap from an unknown source can be useful .

  • @AK56fire
    @AK56fire 2 роки тому

    Why would n=2 give vector field in 4D.?

  • @anupriya7366
    @anupriya7366 3 роки тому

    Doubt-----At 9:05, how the vector can be plot, not able to understand that, cause see for f(0,0) it's going to be (0,0) and f(1,1) ---> (1,1) , then where will the arrow go, as it's going to be a point always, anyone there clear this doubt.

    • @astro6393
      @astro6393 3 роки тому

      EDIT: 2 years later im wondering why i said this.. ignore it's all wrong
      F(1,1) = 1i + 1j means that the vector starts at (1,1), and then it ends 1 point up and 1 point to the right of (1,1). Meaning the vector starts at (1,1) and ends at (2,2).

  • @arsenalaman6493
    @arsenalaman6493 4 роки тому +2

    First one

  • @therandomvidguy5141
    @therandomvidguy5141 3 роки тому +1

    a great teacher but a very confusing graph

  • @paulhetherington3854
    @paulhetherington3854 5 місяців тому

    It be -- called: "STACHON'!" Oriental

  • @kimiscofield203
    @kimiscofield203 Рік тому

    so how to draw like F=i-j

  • @paulhetherington3854
    @paulhetherington3854 5 місяців тому

    Fraud = odd num! I.e. in the clan

  • @Animal-yb1rr
    @Animal-yb1rr Рік тому +1

    I am plotting my dogs movement in the house

  • @catherinev7133
    @catherinev7133 3 роки тому

    I FUCKING HATE CALCULUS
    thank u for the helpful video tho

  • @DavidIdosa-x9c
    @DavidIdosa-x9c Рік тому

    DrTrefor I appreciate you very much your explanation is very nice but if you are allowed I want to share with you one thought which is JESUS ​​CHRIST loves you so much he gave his life for you the bible says in John 14:6 Jesus is the way, the truth, the life understand life without Jesus is dead

  • @dootdiddlydongercuckerino9311
    @dootdiddlydongercuckerino9311 2 роки тому

    duuuuude!!!! this is so much better than my university profs!!!