Partial derivatives, introduction

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  • Опубликовано: 23 янв 2025

Комментарии • 347

  • @brianwahome5789
    @brianwahome5789 7 лет назад +628

    3B1B, The way you say 'Tiny Nudge' is decipherable from the solar system away...Love you man....

    • @matusalaalemseged5587
      @matusalaalemseged5587 2 года назад +7

      Oh, it's that guy??
      He's great!

    • @higuy_14
      @higuy_14 2 года назад +6

      Absolutely great man good content for mathematics love his channel keep it up

    • @flowersArePretty1
      @flowersArePretty1 4 месяца назад +2

      ITS 3B1B!???? Thats why his voice is so familiar!

  • @hermanthegerman9874
    @hermanthegerman9874 3 года назад +221

    How seamlessly Grant adapts and emulates the step-for-step Sal explanation style when it comes to really explaining the math and algebra down to the most operative level (something Grant usually doesn’t do on his own 3blue1brown channel) just once again goes to show what a ridiculous multi layer genius this man is. I salute you, Sir! You’re a mastermind and a gift to math students all over the world.

  • @cluelessxftw
    @cluelessxftw Год назад +107

    7 years later and another electrical engineering uni undergraduate has been saved. +1 for simplicity. Really appreciate it.

    • @ferb1rahert
      @ferb1rahert 2 месяца назад +1

      Real
      Add another EE undergrad for 9 years later vers.

  • @butwhy5741
    @butwhy5741 6 лет назад +67

    I've learned more from this video than from my teachers a whole semester of uni. Thanks man

  • @personalanonymous3172
    @personalanonymous3172 2 года назад +24

    I love 3b1b's channel, but I didn't recognize his voice until he said "just a little nudge in the x direction" at 1:09 which is how he explains derivatives in his essence of calculus series on his channel.

    • @ConquerTheCurve
      @ConquerTheCurve Год назад

      I have more examples like this on my channel if you want more practice!

  • @darkseeven
    @darkseeven 5 лет назад +385

    i know a guy that explains things exactly like you. 3b1b, he is a cool guy

    • @vijayalaxmipunem5993
      @vijayalaxmipunem5993 4 года назад +4

      Thank you sir..for clarity explanation

    • @muhammadarsamdanish6237
      @muhammadarsamdanish6237 4 года назад +10

      He is Grant from 3blue1brown🥴
      He worked for this platform before creating his own chamnel

    • @philliphall283
      @philliphall283 4 года назад +17

      @@muhammadarsamdanish6237 I think that was the point 😂

    • @ViratKohli-jj3wj
      @ViratKohli-jj3wj 4 года назад +10

      @@muhammadarsamdanish6237 thank you captain obvious

    • @kabirsk4266
      @kabirsk4266 3 года назад

      @@ViratKohli-jj3wj now i understand how virat kohil play balls in exact gap direction
      😅😅😅

  • @danielm9463
    @danielm9463 3 года назад +69

    I'm taking Andrew Ng's machine learning course on Coursera, and when Andrew showed the equation for gradient descent, I was able to decipher what it meant thanks to Grant's intuitive approach of little nudges and visualization. Thank you Grant!!! You are a phenomenal teacher!

    • @mario1ua
      @mario1ua Год назад +2

      I'm taking the same ML course now, which brings me here too :D

    • @snakecool3552
      @snakecool3552 11 месяцев назад +1

      I am here for the same reason

    • @awakenwithoutcoffee
      @awakenwithoutcoffee 10 месяцев назад

      same reason!

    • @ibrahimmudassar6563
      @ibrahimmudassar6563 4 месяца назад +1

      oh my god the way that all of us are here from the exact same video is insane and needs to be studied expeditiously

  • @yoursfithfully047
    @yoursfithfully047 Год назад +5

    math for me now has the same voice as grant Sanderson . Thanks grant for letting your knowledge flow and benefit others . May God be by your side

  • @BangMaster96
    @BangMaster96 5 лет назад +107

    3B1B you should start your own Math channel, you'll be successful

  • @jeroincababat565
    @jeroincababat565 Месяц назад +1

    Why doesn't my calculus professor teach like this? The way you explain certain concepts makes them so easy to understand.

  • @intelligentgaming6747
    @intelligentgaming6747 8 лет назад +139

    How much do u want sal to know lol. Sal is not a god that knows everything, he can't make thousands of videos for free for you, at any level lol. He must find others who help. This guy is amazing, his technique helped a lot. In fact a new person helps you understand ways in a new idea so it makes a spark. Hence a lot of people like tutors..

    • @jaredronning3020
      @jaredronning3020 7 лет назад +28

      Are you suggesting Sal doesn't know multivariable calculus?

    • @bhavna6565
      @bhavna6565 6 лет назад +3

      Jared Ronning lol, second that

    • @ankitaaarya
      @ankitaaarya 5 лет назад +9

      @@jaredronning3020 nah i guess s/he was just meant that its okay for sal to take help to peovide free educational videos, s/he was jist appreciating everything sal is doing

    • @alikader909
      @alikader909 4 года назад +7

      @@jaredronning3020 sal has a full BS in mathematics from MIT so idk how he would get that idea. Sal has a BS in Math, BS in EECS, MS in EECS, and an MBA.

    • @karlkfoury2213
      @karlkfoury2213 4 года назад +4

      @@ViratKohli-jj3wj ?

  • @proguyz78
    @proguyz78 Месяц назад +1

    15 minutes ago I didn't know what a partial derivative is. But now I do, thanks!

  • @TanishqIsHere
    @TanishqIsHere 7 лет назад +273

    *_Why that 'nudge' feels familiar?_*

    • @lucagirelli5223
      @lucagirelli5223 6 лет назад +4

      Tanishq hmmmmmmmmmmmmmmm

    • @keshavl1089
      @keshavl1089 6 лет назад +11

      Becoz he's our mentor ,old mentor .I just love him .He's the most beautiful soulful guide of mathematical intuitions yes he's 3b1b

    • @asjedhassan-jq5lq
      @asjedhassan-jq5lq Год назад

      Hahahaaaa

  • @YLLPal
    @YLLPal 2 года назад +15

    As always, you've taken a subject which haunts some (me, 15 minutes ago), and made it feel intuitive.

  • @evolutiagames
    @evolutiagames 6 лет назад +17

    I was hoping for a 3B1B video on this topic cuz I don't know anything about it and he explains things really well; needless to say it's a massive surprise to hear him on here! :D

  • @chrismorris6209
    @chrismorris6209 4 года назад +4

    Khan Academy strikes again, another great video. I wanted to refresh my understanding as to why a particular equation in my work is partial.

  • @tushnim_5996
    @tushnim_5996 7 лет назад +130

    3b1b ????? Exciting

    • @flyer53act
      @flyer53act 6 лет назад +1

      Where can I see him?
      Just face simply
      Lol

  • @rasha8541
    @rasha8541 Год назад +1

    he is just a great teacher ... I was watching his channel (3blue1brown) .. he makes complex things seem simple and intuitive! glad we have him here .. thank you

  • @Toast934
    @Toast934 4 года назад +12

    you can tell from his voice that he keeps his house spotless

  • @astro8149
    @astro8149 7 лет назад +11

    explained better than my calculus professor THANK YOU

  • @roshanr2001
    @roshanr2001 5 лет назад +54

    *the nudge is far too familiar*

  • @TheGrove101
    @TheGrove101 8 лет назад +20

    Aggghhh! I wish you guys would've updated these videos in the beginning of the semester! My eyes had to suffer through Sal's 360p videos... But I do kinda miss Sal's smooth, jazzy voice. Luckily, this new guy get's the point across.

    • @tarangpatil6952
      @tarangpatil6952 5 лет назад

      This new guy has his own channel named 3Blue1Brown

  • @chenhoward7807
    @chenhoward7807 4 года назад +21

    paused at 9:48 for a couple minutes, and played it back again trying to find out why its was sin(y)...

  • @paolovezzola8904
    @paolovezzola8904 Год назад

    thank you!!!! 10 minutes to solve hours of doubts from other video!!!!

  • @derekdj6790
    @derekdj6790 6 лет назад +20

    Am I the one that thought that that parabola was the most beautifully drawn they have ever seen?

  • @minhtrinh7440
    @minhtrinh7440 5 лет назад +7

    You have incredible teaching skill, when I watch 3blue1brown I can visualize everything, and see the purposes behind every math equation

  • @milesemanuelpaavola7994
    @milesemanuelpaavola7994 5 лет назад +7

    Thank you for sharing the post. It really helped me with my studies in Electrical Engineering. The visual representation did wonders for my understanding of derivatives. :-D

  • @surrealistidealist
    @surrealistidealist 6 месяцев назад

    4:40 This is exactly what I needed to know! ❤❤❤

  • @OooooO907z
    @OooooO907z 4 года назад +1

    well, this 10mins video is much better than 10 pages lecture notes and 1 hour lecture lesson from my uni

  • @AldenPez
    @AldenPez 8 лет назад

    Thanks so much. I was confused when I cam here. 1)because partial derivatives we confusing me and 2) because your a new voice!!!! °○°

  • @orvinal2883
    @orvinal2883 4 месяца назад

    I used to think calculus was hard, now It's super easy, it's advanced geometry and stats that's really hard for me now. but next year I'm taking intro to math stats and some actuarial stats classes so hopefully I'll be able to get that under my belt.

  • @ayanSaha13291
    @ayanSaha13291 2 года назад +2

    Thank you very much for the video. It was very helpful.

    • @ConquerTheCurve
      @ConquerTheCurve Год назад

      I have more examples like this on my channel if you want more practice!

  • @FZXTCHR
    @FZXTCHR 6 месяцев назад

    The guy free-hands the curve perfectly😮

  • @stephenverderame4440
    @stephenverderame4440 6 лет назад

    I was just watching one of your (Grant's) videos and I was wondering what happened to the animations and then even more perplexed for a second that this was a Khan Academy video.

  • @Vergil_Sparda
    @Vergil_Sparda 3 года назад +1

    This video does introduce partial derivatives to me better than my school.

  • @masoomshafi7406
    @masoomshafi7406 4 года назад +1

    your writing and drawings are so clean 👌

  • @MsChocolisious
    @MsChocolisious 8 лет назад +5

    i love the way you explain things. Makes math so fascinating!!! :D

  • @freyasaha4559
    @freyasaha4559 8 лет назад +8

    I am used to Sal's voice. But you explained very well according to me.
    So, I like you! And your voice is great as well. Although new.

    • @vtron9832
      @vtron9832 8 лет назад

      Freya Saha Sal's voice was a bit deeper and I kinda got attached to that one

    • @abhisheksamanta1344
      @abhisheksamanta1344 6 лет назад +1

      Check out 3blue1brown.

  • @chalokhele5031
    @chalokhele5031 2 года назад +1

    fantastic video explanation, very useful for high school mathematics

    • @ConquerTheCurve
      @ConquerTheCurve Год назад

      I have more examples like this on my channel if you want more practice!

    • @chalokhele5031
      @chalokhele5031 Год назад

      @@ConquerTheCurve will surely check it out. If required

  • @justinkim7202
    @justinkim7202 Год назад

    This was the perfect explanation for me. Connected a lot of the dots for me. Thank you

  • @ZirJohn
    @ZirJohn 6 лет назад

    thanks, this simple stuff is killin me in physics because I haven’t taken calc 3.

  • @abhishekravindra4008
    @abhishekravindra4008 6 лет назад

    Looking at the angle of transformations the partial derivatives made much much sense

  • @faris1257
    @faris1257 6 лет назад +12

    omg i was so confused to hear grant sanderson

  • @omeransari6894
    @omeransari6894 2 года назад +2

    loved the explanation!

    • @ConquerTheCurve
      @ConquerTheCurve Год назад

      I have more examples like this on my channel if you want more practice!

  • @the_boi_man6860
    @the_boi_man6860 3 года назад

    Wow understood it so clearly! Thank you🙇‍♂️🙇‍♂️

  • @riyasen4714
    @riyasen4714 3 года назад +1

    Great Explanation, for any of the concepts, That too free of cost. Thank you, for your efforts. So much respect for you.

    • @jasonzacharias2150
      @jasonzacharias2150 2 года назад

      Wish we had this back in engineering school, dropped out, now I wipe asses for the man, stay in school kids, Riya I hope you made it... They will be burning this math soon lol jk?? Peace 🕊️

  • @lorentoren8624
    @lorentoren8624 5 лет назад

    This man is a genius, he made me understand derivates & partial derivates in the same freakin' video. and why you write df/dx !

    • @delicate6930
      @delicate6930 5 лет назад +1

      Loren Toren d(f)/dx is like saying find the derivative of the function with respect to x he cant use y because its already being used as a input

    • @hafeezrazmak0534
      @hafeezrazmak0534 5 лет назад +1

      Very nice i want you be read the klma

  • @saulesha123
    @saulesha123 3 года назад

    Thanks very much! so nice explanation!

  • @souvikpaul8367
    @souvikpaul8367 7 лет назад +4

    that helped a lot..thank you

    • @vishwas425
      @vishwas425 7 лет назад +1

      ikr, i've been asking my teachers about it they said you'll this in PhD, i mean this is clearly understandable and helps alot when you solve problems

    • @souvikpaul8367
      @souvikpaul8367 7 лет назад

      Yes exactly...i am doing these for the first time and this video really helped me

  • @timz5082
    @timz5082 5 лет назад

    You are a celebrity in math education on RUclips, 3blue1brown. People love you.

  • @legendhero-eu1lc
    @legendhero-eu1lc 4 года назад

    Thank you for the video! All of you friends are super awesome!

  • @shakebrahman4935
    @shakebrahman4935 2 года назад

    Amazing Teacher you are... my salute

  • @mahajanpower
    @mahajanpower 4 года назад +2

    Thank you soo much for the explanation. Really appreciate it :)

  • @kalebbruwer
    @kalebbruwer 7 лет назад +1

    Thank you, this is really helpful for gradient descent in neural networks.

    • @kalebbruwer
      @kalebbruwer 7 лет назад

      You should've linked to this in your video about the calculus of it.

  • @priyankkharat7407
    @priyankkharat7407 5 лет назад +5

    so simplicity, much understanding, so awesome😁

  • @gauravGupta-bk2sw
    @gauravGupta-bk2sw Год назад

    I tried to like this video twice❤

  • @manjuriroy9351
    @manjuriroy9351 3 года назад

    Thanku sir... Your all pde vdos helped me alot
    3b1b

  • @thesaroscycle_archive
    @thesaroscycle_archive 4 года назад +4

    TIL that 3B1B did videos for Khan Academy.

  • @ZanZ-qi6wz
    @ZanZ-qi6wz 3 года назад

    Very Good Explanation. Thank you!

  • @neeleshpandey9517
    @neeleshpandey9517 7 лет назад

    love our all videos.....your style of initiating

  • @ifrsmasterclass
    @ifrsmasterclass 3 года назад

    that an amazing explanation! Thank you

  • @scholar-mj3om
    @scholar-mj3om Год назад

    Marvellous💯

  • @RoboMarchello
    @RoboMarchello 2 года назад +1

    Thank you for the video:)

  • @karthiksukumaran85
    @karthiksukumaran85 4 года назад

    Good explanation...Thanks

  • @Archetype784
    @Archetype784 2 года назад +2

    Good one

    • @ConquerTheCurve
      @ConquerTheCurve Год назад

      I have more examples like this on my channel if you want more practice!

  • @waraamir1487
    @waraamir1487 2 года назад

    Totally osm explanation thanks alot

  • @spankymebottom
    @spankymebottom 6 лет назад

    wow, this is not even my level and I understood it. tyvm

  • @slowmobius2136
    @slowmobius2136 Год назад

    At 8:53 ish. I understand y is a constant in that situation, but how come he leaves it after 2x, and then sin(y) becomes 0? I’m confused on why he took the derivative of it in sin, but left it as just a standalone y after 2x. Is it implied that the y after 2x is really just 1?

    • @cyprianszewczak6943
      @cyprianszewczak6943 10 месяцев назад

      It's because (c)' = 0 but (c*x^2) = 2*c*x. It means that if you have alone constant and take derivative of it, you have 0, but if you have variable multiplied by constant, it stays there

    • @slowmobius2136
      @slowmobius2136 10 месяцев назад

      @@cyprianszewczak6943 after since going through calc 3 and currently doing diff eqs, it all makes sense now lol. Thank you for your response!

  • @robertgrau1209
    @robertgrau1209 2 года назад

    Its sooo good! Thank you!

  • @Hammadisteachingchemistry
    @Hammadisteachingchemistry 8 месяцев назад

    Great lecture

  • @eduardotito1358
    @eduardotito1358 6 лет назад +1

    Thanks! I missed this class and this video made it so easy to understand '^'

  • @Stickman_Productions
    @Stickman_Productions 2 года назад

    I expected to find a 3b1b. I already knew that 3b1b worked in Khan Academy but I didn't expect to find it.

  • @bl4z3_kanazaki
    @bl4z3_kanazaki 5 лет назад

    Thank you very much for this!

  • @pfever
    @pfever 2 года назад

    Amazing explanation!

  • @gustavoavelino2718
    @gustavoavelino2718 3 года назад

    Pqp, só entendi oq foi escrito.... Leandro preparando a gente pra vida, you are the best my fresnow

  • @ΚωνσταντίνοςΛαζαρίδης-ξ9ι

    Grand for the win!

  • @samanasser5588
    @samanasser5588 4 года назад

    Great Explanation

  • @Prism_JTN
    @Prism_JTN 4 года назад

    This is actually really cool.

  • @R3nxt
    @R3nxt 4 года назад

    Great. Just great.

  • @gabrielhenriquemarinhomour5894
    @gabrielhenriquemarinhomour5894 5 месяцев назад

    Good explanation

  • @kangmoabel
    @kangmoabel 3 года назад

    Organic chemistry tutor is the King

  • @BillShao074
    @BillShao074 4 года назад

    Thank u so much!

  • @mohdnasser9012
    @mohdnasser9012 5 лет назад

    Thank you lot

  • @bikashadhikari1822
    @bikashadhikari1822 4 года назад

    At 9:03 what value does y take? We take x for the change ratio at a particular input in x direction , but what for y?

    • @JoaoJGabriel
      @JoaoJGabriel 3 года назад

      It's y
      What both partial derivatives are doing is treating one dimension as changing, and the remaining as a constant, so that only one of the dimensions have a derivative.
      For the derivative of x with y constant, you evaluate in relation to x;
      For the derivative of y with x constant, you evaluate in relation to y.
      It's nice to notice that you could do the same thing with any number of dimensions, not just two. You isolate one of them at a time and take their derivatives by treating all others as a constant.

  • @chilansethuge8487
    @chilansethuge8487 4 года назад

    Excellent !

  • @dina-vn1ol
    @dina-vn1ol 7 лет назад +4

    I love your conceptual approach to these problems. Thank you for this.

  • @SunWarrior155
    @SunWarrior155 3 года назад

    Based on the Leibniz notation, is it accurate to say that the derivative of a function f(x) is simply the differential of 'f' divided by the differential of 'x'?

    • @thegreatzoom5073
      @thegreatzoom5073 3 года назад

      Yes, but you can also say it's the ratio of change in f to the change in x, or the ratio of the change in output to a change in input. Same thing as dividing, but saying ratio is a little more intuitive imo.

  • @mynameisZhenyaArt_
    @mynameisZhenyaArt_ 7 лет назад +1

    It's perfect!

  • @temisegun8631
    @temisegun8631 5 лет назад

    thank you !

  • @swapnilacharjee9071
    @swapnilacharjee9071 3 года назад

    Oh!! Grant! I recognised the voice. 👏

  • @tejuswadbudhe7909
    @tejuswadbudhe7909 6 лет назад

    Thank you

  • @diggleboy
    @diggleboy 6 лет назад +1

    In case you were wondering, 1+cos(2) = 0.583853

  • @metegurun5641
    @metegurun5641 4 года назад

    well explained my man

  • @andrewmaksimovich2432
    @andrewmaksimovich2432 3 года назад +1

    This is some valuable content, Im glad that I could just watch this and learn. Question, is partial differentiation similar to implicit differentiation in any way?

    • @soletslove
      @soletslove 2 года назад +1

      I was wondering the same thing!

    • @philipmsc12
      @philipmsc12 2 года назад +1

      Partial differentiation differs from implicit differentiation because it takes the derivative in respect to a certain variable such as x, y, or z while implicit differentiation takes derivatives solely in respect to dx. The purpose of implicit differentiation is to take the derivative in respect to x in an implicit function or functions when the y's are mixed in the equation.
      Often what differentiates single and multivariable calculus is adding dimensions beyond 2-D. In single variable calculus you are usually solving for x, often the independent variable in your equations.

  • @njabulomahlalela2912
    @njabulomahlalela2912 8 лет назад +1

    you're awesome!

  • @gabriellegall8278
    @gabriellegall8278 7 лет назад

    thank you so much

  • @haojiang4882
    @haojiang4882 6 лет назад +12

    Oh, my parallelepiped!

  • @Victual88
    @Victual88 Год назад

    excellent

  • @TheBigBangggggg
    @TheBigBangggggg 7 лет назад

    Watch the big difference in the number of displays betweeen this video and the previous videos! People know when something is usefull and when something is not ;-)

  • @rahultripathi9457
    @rahultripathi9457 4 года назад

    Your videos are wonderfull. at 10:02, it should be Cos(2).

    • @ycombinator765
      @ycombinator765 4 года назад

      Just a tiny nudge in time in +ve direction (pun intended) and he corrects it. Please consider watching it!