/sci/ - Science & Math

[Anonymous No.12728126]

>mech engineer senior
>getting filtered by any math more advanced than calc 2

[Anonymous No.12728274]

>electrical engineer senior
>PDEs and vector calculus are the bread and butter of my courses

[Anonymous No.12728291]

>>12728126
>chemical engineer junior
>all analytic solutions to retarded differential equations are given in tables so we don't have to waste time doing separation of variables

[Anonymous No.12728302]

>>12728126
>lawda
>lassan

[Anonymous No.12728324]

>>12728274
Why?
I'm in my last year of masters and I've never used those for anything
Are you in RF?

[Anonymous No.12728327]

>>12728126
>electrical engineer junior
>transform all problems into the frequency domain so I don't have to use any math more advanced than calc 2

[Anonymous No.12728531]

>>12728324
>I'm in my last year of masters and I've never used those for anything
Stop taking our jobs, pajeet.
>>12728327
based

[Anonymous No.12728723]

>Retarded
>Wtf is a derivitive

[Anonymous No.12728812]

>>12728327
hot map
can i see more? (pussy, ..)

[Anonymous No.12729030]

>>12728291
that's what you do in physics too. Some bloke solved this shit way before you, so why bother? They even name series solutions after them. Laguerre, Legendre, Chebyshev, etc etc.

[Anonymous No.12729080]

>>12729030
brainlet take. they will never be something named after you. sad!

[Anonymous No.12729092]

>>12728324
>Are you in RF?
Yes

[Anonymous No.12729112]

>>12729080
>hey will never be something named after you
couldn't care less. I enjoy doing what I do. That's all that matters to me. Also I'm not a mathematician. Rather than solving some weird diffeq I'd go to an expert in the field who knows far more about it than me. My job is to interpret how it applies to nature.

[Anonymous No.12729199]

>>12728291
please post tables or give link

> t. retard

[Anonymous No.12729849]

>>12728274
>PDEs and vector calculus are hard
lmao
most of engineering that uses PDEs just lifts results from mathematical physics, where they actually analyze PDEs.

[Anonymous No.12729905]

>>12729112
>ather than solving some weird diffeq I'd go to an expert in the field who knows far more about it than me. My job is to interpret how it applies to nature.
You fool, the people who solved the equations are usually among the people who understand how to interpret how it applies to nature.
People here aren't making fun of you for using tables. People here are making fun of you for using tables and suggesting that you have a deeper understanding of its use.

You're the type of person to think nameless mathematicians have nameless results useful in physics but fail to realize that mathematicians like Joel Lebowitz are the reason why we understand so much about phase transition and plasmas

[Anonymous No.12730030]

>>12729905
>You fool, the people who solved the equations are usually among the people who understand how to interpret how it applies to nature.
We're not in the 19th century anymore. You can't be a polymath today. There are professional mathematicians and professional physicists. Mathematical physicists are basically applied mathematicians and theoretical physicists and have no pure math field they specialize in. And reinventing the bicycle is what I call foolish.
>People here are making fun of you for using tables and suggesting that you have a deeper understanding of its use.
I'm not that guy and I don't pretend I know post-grad level differential equations theory unlike the profs in the math department.

[Anonymous No.12730316]

>>12730030
He will never understand anything if he can't derive it.

[Anonymous No.12730528]

>>12730316
Very nice, what's that book called

[Anonymous No.12730542]

>>12728126
Why do so many people have difficulty with math? 99% of the time even in college all you have to do is recognize patterns and apply an algorithm, shit you can just learn from doing a bunch of practice questions.

[Anonymous No.12730578]

I took an engineering course where the prerequisites were PDEs. They lied. You probably needed only the first few weeks of multivariable calculus at most, not anything involving Fourier series or separation of variables.

[Anonymous No.12730886]

>>12730030
>There are professional mathematicians and professional physicists. Mathematical physicists are basically applied mathematicians and theoretical physicists and have no pure math field they specialize in.
Lmao what, this isn’t true. Many mathematical physicists are functional analysts or algebraists who use physics as a motivator for problems. Of course there are those that are more on the physics side, but they absolutely have their expertise.
Nobody is asking to reinvent the wheel or to do the tedious calculation. But knowing where it comes from, how, and being able to do it is important. The stratification between fields isn’t nearly that important in the face of research that needs different perspectives to tackle effectively.
All I’m saying is the attitude of “ugh, that’s just something my local mathematician can do, since I worry about the physics” is bad. Even working with the mathematician, you ought to appreciate and internalize what you didn’t specialize in - it reaps a lot of practical benefits. Learning more about how physicists “bastardize” differential geometry actually helped me pave a rigorous and (in my opinion) useful result in the field. I’ve heard similar stories for physicists learning from mathematicians.

[Anonymous No.12730904]

>>12730578
I'm taking CFD1, apparently no math prerequisites, and I'm getting fucked rn

[Anonymous No.12731990]

>>12728274
You're pulling shit out of your ass. I haven't even seen anything represented by vectors outside of special projects after calc 3. PDEs tho...

[Anonymous No.12731992]

>>12728327
Never really touched matlab until then. Boy what a lifesaver