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/sci/ - Science & Math

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15224575 No.15224575 [Reply] [Original]

>multivariable calculus

>> No.15224577 [DELETED] 
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15224577

>>15224575
>Mathematics

>> No.15224578

>>15224575
from low iq people's perspective

>> No.15224583

>>15224578
and imo a midtwit should be able to handle multivariable calculus by working hard

>> No.15224607 [DELETED] 

>>15224577
>slava ukraini
>everything is Putin's fault
Are normies really that obsessed over a conflict between two shambolic corrupt shitholes? Does this really take up so much space in their heads?

>> No.15224610

[math]f(x)[/math] - meh...
[math]f(x, y)[/math] - OMG!!!

>> No.15224685

>>15224583
>should be able to handle multivariable calculus by working hard
Were you able to? Post course transcripts.

>> No.15224759

>>15224685
calculus 1: 1.3
calculus 2 (multivariate calculus): 1.7
calculus 3: 1.3
Studying electrical engineeering in germany. I'm focusing on rf engineering. I'm not that much of a smart guy but can handle it well

>> No.15225867

>>15224685
Multivariable calculus is pretty easy if you are good visualising stuff, and making simple drawings.

>> No.15225902
File: 279 KB, 1120x935, 1674126215132365.jpg [View same] [iqdb] [saucenao] [google]
15225902

>Hypercomplex Analysis

>> No.15225923

>>15224575
Mv calc shouldn't be hard if you had linear algebra and knows the basics of trig and geometry. If you studied well the pre-requisites, then it's basically the same shit.

>> No.15226279

>>15224575
Yeah, it's good shit OP. Had a good memory from class
>professor covering total derivatives, I think
>he had a stroke, so everything's a mumble
>his chalkboard notes curving down like a plane crash
>some guy next to me chatting up as I make notes
>CRACK!
>fuck was that!?
>guy next to me went quiet as a chalk exploded 2 in. from his nose
>turned to see the professor looking at that guy
>"do I have your attention?" was the clearest I heard from him

>> No.15226307

The only thing I didn’t like about multi variable calc was having to do an integration my parts with x, y, and z.

>> No.15226833

>>15224575
d > ∂
nuff said

>> No.15226853

>this axis is for f
>this axis is for x_1
>this axis is for all your other variables

>> No.15227596

>>15224610
Or... [math] f( \mathbf x) [/math]

>> No.15228155

What can we do with it?

>> No.15228173

>>15224575
>multivariable calculus
>still can't solve the three-body problem in a useful way
Why is calculus such TRASH bros?

>> No.15228612

>>15228155
Minimizing the surface area of the packaging at the box factory you'll be working at for not understanding multivariable calculus

>> No.15228804

>>15224578
what is high IQ mathematics then if Multi variable Cal is too easy ? speak genius

>> No.15228807

>>15228173
>Why is calculus such TRASH bros?
cope

>> No.15228809

>>15228173
There are group theoretic reasons to why such problems cannot be solved. Not enough symmetry. Whereas the two-body problem is solvable due to its easily exploitable symmetry.

>> No.15228815

>>15228804
Multivariable Calc as taught in undergrad is just applied math in the same way that arithmetic, geometry, and stats are taught in grade school. You can do it perfectly well without knowing any of the underlying theory. That's why is a prereq for most stem programs and not strictly for math majors.

The big brain math is understanding the theory and assumptions used in everyday math. Courses like real and complex analysis, number theory, differential geometry, category theory, and topology are things that kick most people in the nuts.

Another analogy would be with compsci. Children know how to use computers but the material science, physics, and base level logic used to build and create them are another thing entirely.

If you spend time learning any calculus, you can do many textbook integrals and word problems in your head just as trivially as a child can add. Doing this with proofs and algorithms is significantly more difficult.

>> No.15228847

>>15226279
>kek collegecels lost
self study gods won

>> No.15228850

>>15228173
>Why is calculus such TRASH bros?
Even though without it you wouldn't be able to find the volume of an irregularly shaped orange

>> No.15228863

>>15224610
WOWZA!

>> No.15228889

>>15228815
>compsci
>the material science, physics, and base level logic used to build and create them

anon, I don't think you have a clue what Compsci is.

>> No.15228896 [DELETED] 
File: 1.37 MB, 1x1, Representation Theory of Finite Groups An Introductory Approach - Steinberg.pdf [View same] [iqdb] [saucenao] [google]
15228896

>>15228804
Dude, multivariable calculus was literally the /first/ math class I took as a math major, and I was taking 3-4 math classes every semester for 4 years. Moreover, basically everything I studied, except for public-key cryptography and maybe a lil of the design combinatorics, was figured out BEFORE the 20th century. There's so, so, SO much math beyond calculus that you just never hear about in K-12.

>> No.15228901
File: 1.37 MB, 1x1, Representation Theory of Finite Groups An Introductory Approach - Steinberg.pdf [View same] [iqdb] [saucenao] [google]
15228901

>>15228804
Dude, multivariable calculus was literally the /first/ math class I took as a math major, and I was taking 3-4 math classes every semester for 4 years. Moreover, basically everything I studied, except for public-key cryptography and maybe a lil of the design combinatorics, was figured out BEFORE the 20th century. There's so, so, SO much math beyond calculus that you just never hear about in K-12.

>> No.15228902

>>15228896
>There's so, so, SO much math beyond calculus that you just never hear about in K-12.

It's over

>> No.15228905

>>15228850
I'd drop it in a beaker of water. theoryfags BTFO

>> No.15228908 [DELETED] 

>>15228905
Implying the orange sank because it's force was weaker than the buoyant force from the displaced water even doe the orange floated because the irregular shape was a bended peal with eaten flesh from the orange

NGMI Archimedes sisters lost

>> No.15228912

>>15228905
Implying the orange sank because it's force was stronger vertically 3 dimensionally than the buoyant force vertically polar diagonal from the displaced water even doe the orange floated because the irregular shape was a bended peal with eaten flesh from within the orange

NGMI Archimedes principle sisters lost

>> No.15228961

>>15224759
>>>15224685
>calculus 1: 1.3
>calculus 2 (multivariate calculus): 1.7
>calculus 3: 1.3
>Studying electrical engineeering in germany. I'm focusing on rf engineering. I'm not that much of a smart guy but can handle it well

Translate into US A-F or 0%-100% grades or Spanish/American 1-10.

>> No.15229969

Multivariable is actually easier because you're only taking it if you understand univariable calculus.

>> No.15230190

>>15228961
From: https://en.wikipedia.org/wiki/Academic_grading_in_Germany

The grades of 1.3 and 1.7 translate into A- and B+ respectively.

>> No.15230244

>>15224610
[math]f(x)[/math] :|
[math]f(x, japan)[/math] :O

>> No.15230250

>>15228889
Heh. That anon is a retard

>> No.15230583

>>15228912
Are you truly proposing use integral calculus to find the volume of this hypothetical orange-kayak for Lego men.

>> No.15232262

bump

>> No.15232287

>>15230583
B calc I, A calc II, B calc III

Only got an A in Calc II because all power series and sequences just came to me immediately and had a 100% in that exam.

>> No.15233662

>>15224610
[math] f(x,y,z) [/math] - w-what? is th--...is this real?
[math] f(x,y,z,w) [/math] - christ on the shitter! oh god...I--I need a moment

>> No.15233808

We were given two months to finish Single-variable-calc course (calc 1 + calc 2) without any formula sheet or calculator. As soon as that course had ended, Linear Algebra course started and lasted two months and then multivariable calculus for two months. I failed all three courses twice. The pace was too fucking quick to handle, literally had to finish 4 chapters in one week per course followed by weekly midterm, fuck my life.

I was so fucking jealous of my cousin who was studying engineering in Canada, lucky motherfucker literally had Calc 1 entire first semester from fall to winter, followed by Calc 2 and Linear Algebra the entire second semester from winter to summer with fucking formula sheet and he aced both courses, despite me having to help him on assignments. I hate my life.

>> No.15233812

>>15230244
Lmao.

>> No.15233831

>>15233808
You are a dumbfuck. Single and Multivariable calculus is a matter of a weekend

>> No.15233841

>>15233831
Yeah keep bragging unless you studied math, physics, E-physics, E-Chem, E-math or EE.

>but-but I studied data science statistics
nigga stfu u studied math.

>> No.15233878

>>15233831
I assume you’re Canadian or American, single-variable and multivariable calc exams is no joke in European technical universities. The questions are more focused on proofs rather than “Solve this”, and sometimes require you to have solid understanding in basic real analysis theories without going through it thoroughly, it is expected that “you just know it”, and there are no multiple choice questions allowed let alone calculators and formula sheets. The hardest question on an engineering level Calculus exam in the US is not even close to being on par with the easiest question on a Calculus exam at least in technical universities in Scandinavia, where the exams are made to make sure that 70% of exam-takers fail since only limited number of students are allowed to pass or get higher grades. Grading is a lot stricter in European universities than in top US universities as well. An A grade in Europe corrsponds to 97% or more being correct. We have no + or - grades and it’s on a 5.0 scale with E grade being least passable grade.

t. Norwegian EE student who transferred to Stanford.

>> No.15233883

>>15233878
Well the elite American schools used to care. That's why you have classic books like Apostol's Calculus which is really calculus and intro analysis. Nowadays in North America, an engineer might never even see analysis, unless he's at a very elite school.

>> No.15233898

>>15228804
basically anything, lmao
multivariable calculus is literally right after basic calculus, which can be taught in high school already
multi-variable calculus is not that much more difficult than basic calculus

>> No.15235535

bump

>> No.15236158

>>15230244
Lol

>> No.15236202

>>15230244
Good joke.

>> No.15236228

>>15230244
Kekked and checked

>> No.15236874

>>15226279
>>15224575
Did I also mention that he had tenure? Yeah, he had tenure.

>> No.15237051

>>15228804
https://www.kurims.kyoto-u.ac.jp/~motizuki/Inter-universal%20Teichmuller%20Theory%20I.pdf

>> No.15237059

>>15237051
>>15224575
This is easier than arithmetic dude real arithmetic is harder.

>> No.15237082

>>15230244
I don't get it.

>> No.15237102

>>15237082
X-Japan is a band, anon

>> No.15237114
File: 28 KB, 656x527, 9e1.png [View same] [iqdb] [saucenao] [google]
15237114

>>15237102
Well that seems like kind of an obscure joke.

>> No.15237137

>>15237114
its a meme you sperg, don't you frequent other places on the internet?

>> No.15238421

>>15228889
kek

>> No.15238667

>>15224583
low-mid IQ here
I got an A- in my retarded "Mathematics for the Social Sciences" version of multivariable calculus. Did not work hard, had a B going into the final, so I studied the "practice test" for a day, and that was enough. Anyone who can read and follow a cook book can do well in a college multivariable calc class.

>> No.15239831

>>15233878
>where the exams are made to make sure that 70% of exam-takers fail since only limited number of students are allowed to pass or get higher grades
Why would you want to go to a school where every class is a weedout class?

>> No.15240081

>>15230190
>>>15228961 (You)
>From: https://en.wikipedia.org/wiki/Academic_grading_in_Germany
>The grades of 1.3 and 1.7 translate into A- and B+ respectively.
Thanks.

>> No.15240088

>>15239831
>>where the exams are made to make sure that 70% of exam-takers fail since only limited number of students are allowed to pass or get higher grades
>Why would you want to go to a school where every class is a weedout class?

This.

>> No.15240188

>>15238667
I guess these classes are just a joke then. Are all the good multivariable calculus books written long ago? My favourite is Fleming's Functions of Several Variables (several in this case meaning R^n).

>> No.15240233

>>15224575
Wait until you find differential geometry and topology

>> No.15240418

>>15230190
>>15240081
That’s German High School grading, in University level everyone uses ECTS.

>> No.15240425

>>15239831
>>15240088
Those classes are mandatory. There’s a strict policy against letting all students to pass the course, it is expected that those mandatory classes will filter out students such that only few who can handle and manage the coursework can graduate. Thus saving money so since oublic uni in Europe is 100% tax funded with few if any private endowment.

>> No.15242327

bump

>> No.15242950

>>15240425
>There’s a strict policy against letting all students to pass the course

Europe: Free college for all!
Also Europe: Except most of the people, plus other fine print.
Germany: Use most subjective and destructive form of grading, the curve; all but guaranteed to shut out genius, block teamwork, and produce conformists.


Compare US: New College of Florida, open admission, NO grades, free tuition paid by lottery.
Also New College: More Fields medals and other math awards proportionate to number of students than any college or university.

>> No.15243808

Currently reading apostol vol 1 , should I read vol 2 for multivariable calc? Or pick some other book?

>> No.15243814

>>15243808
desu Apostol is very advanced i wouldn't recommewnd it as a first read but if you already worked through Vol 1 then get Vol 2

>> No.15243828

>>15243814
I am working problems out of calculus made easy by silvanus thompson. Almost at the end of the integration section in apostol. Skipping problems in apostol for now.

Which book do you recommend for multivariable calc ?

I can't grasp the multi variable definition of a limit, a jacobian magically pops up out of nowhere!

I still don't get it.

>> No.15243845

>>15243828
an easy multivariable book is casper goffman "calculus of several variables" but its an older book and out of print, but should be on libgen, but i'd suggest getting Vol 2 of Apostol anyway