Absolute Maximum and Minimum Values of Multivariable Functions (Part 1)

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  • เผยแพร่เมื่อ 29 ธ.ค. 2024

ความคิดเห็น • 80

  • @tobyfreitas68
    @tobyfreitas68 11 ปีที่แล้ว +58

    you know, that ad before all of these videos starts out with "tired of scrounging youtube for math help?" or something, and thanks to patricjmt, no, actually, i'm not. youtube is working just fine.

    • @gpl3046
      @gpl3046 ปีที่แล้ว +2

      Bro the same ad is still going on 9 YEARS LATER. it must have work well 😂

  • @8Trails50
    @8Trails50 10 ปีที่แล้ว +47

    Thanks patrick math god, saving my marks since high school.

    • @stevemejia7194
      @stevemejia7194 7 ปีที่แล้ว +1

      Aomine would have been in the zone to defeat math or he would have asked Midorima for help.

  • @squidwardx2
    @squidwardx2 14 ปีที่แล้ว +2

    OMG this dude is so awesome our teacher went over this stuff today! But he writes so fast no one can keep up and listen at the same time. I come youtube today and the first thing i see in the middle page is my subscriptions box. And what do i see? ASK ME, What do i see? I SEE MY MAN PATRICK (JMT) posting a video about absolute min/max. My man! This is why I tell everyone i talk to about math: "Ay you know Patrickjmt? Cus if you dont, you losing!"

  • @AzureSkyButterflies
    @AzureSkyButterflies 9 ปีที่แล้ว +55

    My math final is in 3 hours and this cleared everything up! thanks!

    • @ethwhale
      @ethwhale 7 ปีที่แล้ว +1

      How'd you do

    • @NiggaSlayer666
      @NiggaSlayer666 7 ปีที่แล้ว +19

      she's Asian dumdum... XD

  • @phloppy3795
    @phloppy3795 3 ปีที่แล้ว +5

    you're a hero for this. my calc 3 professor never explains each step thoroughly and i was straight lost trying to understand how to find the boundaries. i wish more professors just took the time to go step by step instead of expecting us to pull the info from our asses lol

  • @blockcaptain123
    @blockcaptain123 14 ปีที่แล้ว +2

    Wow, I have my test in about three hours and this is the stuff I didn't understand that well. Until now! Thanks man! Perfect timing! XD

  • @PeaceLoveDevi
    @PeaceLoveDevi 10 ปีที่แล้ว +2

    Patrick thank you so much for all your help! My friends and I all appreciate your videos, they are easy to follow and explain which steps to do in what order and why. I cannot thank you enough for all your help and I don't think I would have gotten an A in my math class without you :)

  • @alishbakhan8951
    @alishbakhan8951 4 ปีที่แล้ว

    Hey! ..... your way of teaching is awesome. Your handwriting is neat and clean ...

  • @Zeppelinpuppy
    @Zeppelinpuppy 10 ปีที่แล้ว +7

    Thanks man, very useful and straight forward as always.

  • @pabloMTv
    @pabloMTv 14 ปีที่แล้ว

    Oh patrickJMT every time you upload a new video i get chills all over my body and watch it right away!

  • @ChrisTheDIYguy
    @ChrisTheDIYguy 13 ปีที่แล้ว +1

    This is the best explanation I've seen, thanks!

  • @masterchief9064
    @masterchief9064 11 ปีที่แล้ว +1

    Patrick your videos were temporarily disabled in Australia and I was freaking out cause my finals are soon!! But thanks for bring them back!!

  • @hilokage
    @hilokage 14 ปีที่แล้ว

    this was right on time! we're going over this in class now and i had no clue! thanks a million!

  • @lilyjune1230
    @lilyjune1230 14 ปีที่แล้ว +1

    thank you so much. I just started learning this in class and this helps a lot. Thanks!!!

  • @Andrewz9oh4
    @Andrewz9oh4 11 ปีที่แล้ว

    I really wish I had money to donate to you. You're really doing the community a favor by making these videos.

  • @AlchemistLT
    @AlchemistLT 12 ปีที่แล้ว +2

    Could you make a video of multivariable curve sketching. Like you did with simple ones? "Summary of Curve Sketching"

  • @patrickjmt
    @patrickjmt  13 ปีที่แล้ว

    @ChrisTheDIYguy you are welcome!

  • @lexinaut
    @lexinaut 14 ปีที่แล้ว

    I KNOW someone named ABSOLUTE MAX, and he is TOPS! Nicely presented.

  • @Nani-Afinarte13
    @Nani-Afinarte13 10 ปีที่แล้ว +6

    Awesome video and lecture patrickJMT Your videos help me look at math in a whole different perspective:D

    • @flawns
      @flawns 10 ปีที่แล้ว

      Thanks Nani Manzo, your comment helped me take a whole different perspective on life :D

    • @Nani-Afinarte13
      @Nani-Afinarte13 10 ปีที่แล้ว

      I don't know if I should take your comment serious or take it as a sarcasm. But thanks! U WUT M8?

  • @Boooyah21
    @Boooyah21 12 ปีที่แล้ว

    Patrick..you're so awesome. You picked a problem that's being graded on my homework lol

  • @the_real_cookiez
    @the_real_cookiez 10 ปีที่แล้ว

    You are a legend! Keep on doing what you are doing good sir.

  • @mosulicwele1824
    @mosulicwele1824 9 ปีที่แล้ว +5

    All the blessings must be upon you my teacher.

    • @oziphiwe3836
      @oziphiwe3836 9 ปีที่แล้ว +1

      usazimamele ngoMaths mfo kaCwele
      yaz I also watch these live lectures and they are so helpful, I wish I had access to them when I was in Matric.

  • @joyceguo4108
    @joyceguo4108 9 ปีที่แล้ว +1

    Okay...Actually my midterm is tomorrow and now I am going to preview this chapter...But nice and clear video!
    I still have a question though, so what if you have a higher order function, say, f(x,y) = 4*x*y - x^4 _ 2*y^2 and I solve for the critical points and got y - x^3 = 0 & x -y =0. So do I have to always make y-x^3 = x -y and solve for x and y? (this process is super time consuming....) Do you have any other way? Thx!

  • @Wuzimu4444
    @Wuzimu4444 14 ปีที่แล้ว

    I'll be damned. Just covered this in my Multivariable Calculus class. You my hero mang.

  • @patrickjmt
    @patrickjmt  12 ปีที่แล้ว +1

    that is called 'closed interval method' and i already have videos for it!

  • @argaudette
    @argaudette 13 ปีที่แล้ว

    Stewart Calculus 6th edition chapter 14.7 question 30? This exact question was on my assignment, thanks for the video and explanation!

  • @BlakeCreate
    @BlakeCreate 8 ปีที่แล้ว

    Do you have a video of this exact same topic but with a parabolic region such as -2

  • @metal4bld
    @metal4bld 11 ปีที่แล้ว

    thanks man, got me through integral calc and hopefully multivariable. we'll see friday

  • @nosihleshezi8792
    @nosihleshezi8792 8 ปีที่แล้ว +1

    i really dont understand how you got the x value and the y value. would you please explain

  • @tayneilson
    @tayneilson 8 ปีที่แล้ว

    What about the cases when your derivatives are a number like Fx=1 and Fy=1 for equation x+y+1=F(x,y) ? on set x^2+y^2

  • @ATrekafied
    @ATrekafied 9 ปีที่แล้ว

    Question: when the equation DNE at a point, that is also a critical point right? how would you find the point where the equation DNE?

    • @skateboarderlucc
      @skateboarderlucc 8 ปีที่แล้ว

      DNE is short for does not exist; I think youre looking for "undefined" ;)

  • @omfgitshaoranful
    @omfgitshaoranful 11 ปีที่แล้ว

    Thank you so much, now i don't have to go to lecture :D!

  • @Bahfreakee
    @Bahfreakee 12 ปีที่แล้ว

    i don't know why but when he said "it doesn't get much better than this" at around 2:30, i just couldn't stop laughing. i need to take a break from the maths for a bit lol

  • @supagohan
    @supagohan 14 ปีที่แล้ว

    If only I had this when I was going through the Abs Max and Min.
    How about a video on Cylindrical Coordinates? I tried to find one earlier and it seems you dont have any (even though Its Polar Coordinates with z added in). Im sure others besides myself would appreciate it.

  • @shehesheha
    @shehesheha 11 ปีที่แล้ว

    And how do I find the critical points of an absolute value function, such as | 3t - 8 |?

  • @MrKhacheerio
    @MrKhacheerio 12 ปีที่แล้ว

    Very nice handwriting for a lefty.

  • @kereth11
    @kereth11 12 ปีที่แล้ว

    could you show that a continuous function on a closed interval takes its maximum and
    minimum value there

  • @LukaC231
    @LukaC231 10 ปีที่แล้ว +1

    Haha this example problem you are using is exactly the same as the one on my study guide. Number for number

  • @kiddcamel
    @kiddcamel 2 ปีที่แล้ว

    wow it just clicked thanks

  • @xxblackwhitex
    @xxblackwhitex 8 ปีที่แล้ว

    Why are some videos not playing any sound?

  • @falah834
    @falah834 ปีที่แล้ว +1

    Patrick but you only checked the absolute min/max for points on the boundary

  • @chrisendemann4251
    @chrisendemann4251 7 ปีที่แล้ว

    This guy's voice sounds like the guy from casually explained. 10/10 explanation.

  • @sakif7
    @sakif7 11 ปีที่แล้ว

    setting those partials equal to zero and getting values for (x,y) as critical points in this problem was super easy..
    unfortunately on my exams they much more complicated..
    is there any algebra videos that explain how to find critical points with much more complicated partials derivatives to set as zero ??

  • @Nyquiiist
    @Nyquiiist 12 ปีที่แล้ว

    yes but is it for multivariable calc?

  • @SiddK77
    @SiddK77 14 ปีที่แล้ว

    you are a god

  • @hasemali7799
    @hasemali7799 8 ปีที่แล้ว

    how will we check if the point we found is maxima or minima??

    • @markusabrown85
      @markusabrown85 8 ปีที่แล้ว

      Hasem Ali when fxx(a,b)>0, f(a,b) is a local min and when fxx(a,b)

  • @squigglyfun27
    @squigglyfun27 11 ปีที่แล้ว

    many thanks as always :)))

  • @patrickjmt
    @patrickjmt  14 ปีที่แล้ว

    @pabloMTv ha pablo, you must be easily amused! : )

  • @lifeisjust1shotaway
    @lifeisjust1shotaway 9 ปีที่แล้ว +2

    2:20
    OH MY GOODNESS THAT IS THE FIRST MISTAKE I HAVE SEEN HIM MAKE IN HIS VIDEOS. It's like finding a needle in a haystack. A very large haystack.

  • @newggyy
    @newggyy 6 ปีที่แล้ว

    wow wow wow.God bless you

  • @tenton2000k
    @tenton2000k 7 ปีที่แล้ว

    Sean loves you patrickjmt

  • @TheMadGinger3
    @TheMadGinger3 5 ปีที่แล้ว

    patrick, open the video with "we'll talk about critical points on the boundary in part two."

  • @shabananisha1911
    @shabananisha1911 9 ปีที่แล้ว

    thank u sir ..

  • @drakerocker1994
    @drakerocker1994 11 ปีที่แล้ว

    What if the D is not given ?

  • @moneerl
    @moneerl 11 ปีที่แล้ว

    Thxxxxxx

  • @normaruwandi5462
    @normaruwandi5462 3 ปีที่แล้ว +1

    2021?

  • @djataberk1
    @djataberk1 7 ปีที่แล้ว

    I did not get it

  • @dawithailu2936
    @dawithailu2936 ปีที่แล้ว

    2023😊

  • @leoncio91
    @leoncio91 13 ปีที่แล้ว

    2:34 lmao "so uh, uh"

  • @wahlb3rg94
    @wahlb3rg94 9 ปีที่แล้ว +1

    dear patrick, plz have my babies

  • @tiktokm7056
    @tiktokm7056 4 ปีที่แล้ว

    Hey

  • @wizzlewiz
    @wizzlewiz 11 ปีที่แล้ว

    test