/sci/ - Science & Math » Thread #13428987

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Anonymous Sat 24 Jul 00:46:59 2021 No.13428987 View Reply Original Report

Quoted By: >>13428989 >>13428993 >>13429006 >>13429018 >>13429320 >>13429492 >>13430444

Just started learning about ordinary differential equations, anything important I should know about? Also, why aren't the science and math boards separate

Anonymous

Anonymous Sat 24 Jul 2021 00:48:10 No.13428989 Report

Quoted By: >>13428995 >>13429009

>>13428987
Don't. It was invented so some "professors" could sell textbooks

Anonymous

Anonymous Sat 24 Jul 2021 00:50:05 No.13428993 Report

Quoted By:

>>13428987
https://en.wikipedia.org/wiki/Annihilator_method#Annihilator_table

Anonymous

Anonymous Sat 24 Jul 2021 00:50:27 No.13428995 Report

Quoted By:

>>13428989
i need it to graduate so it's not really a choice for me. plus the professor is really based (all info compiled into free pdfs and video lectures)

Anonymous

Anonymous Sat 24 Jul 2021 00:56:42 No.13429006 Report

Quoted By: >>13429029

>>13428987
> $f' = f$
then $f'f$ is some kind of $e^x$
> $f'' = f$
then $f$ is some kind of $e^x$ or $\sin x$ or both

and so on and so on

Anonymous

Anonymous Sat 24 Jul 2021 00:57:42 No.13429009 Report

Quoted By: >>13429026

>>13428989
Literally retarded

Anonymous

Anonymous Sat 24 Jul 2021 01:00:15 No.13429018 Report

Quoted By: >>13429028

>>13428987
You should have a solid grasp of harmonic analysis, real analysis, functional analysis, analysis on manifolds and differential geometry before tackling this subject, frogposter.
You can find the necessary textbooks on libgen.

Anonymous

Anonymous Sat 24 Jul 2021 01:04:01 No.13429026 Report

Quoted By: >>13429422

>>13429009
Nice argument

Anonymous

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Anonymous Sat 24 Jul 2021 01:04:15 No.13429028 Report

Quoted By: >>13429315

>>13429018
>mfw i have no idea what the fuck any of those is

Anonymous

Anonymous Sat 24 Jul 2021 01:04:20 No.13429029 Report

Quoted By:

>>13429006
Truth

Anonymous

Anonymous Sat 24 Jul 2021 01:35:53 No.13429122 Report

Quoted By:

sorry, forgot about everything despite learning 2 years ago with good grade.

Anonymous

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Anonymous Sat 24 Jul 2021 02:47:34 No.13429315 Report

Quoted By:

Anonymous

Anonymous Sat 24 Jul 2021 02:50:06 No.13429320 Report

Quoted By:

>>13428987
paul's online notes
professor leonard on youtube

Anonymous

Anonymous Sat 24 Jul 2021 03:13:13 No.13429422 Report

Quoted By: >>13429469

>>13429026
Saying "ordinary differential equations are made up by professors to sell books, don't learn them" isn't an argument in the first place and doesn't require one in response.

Anonymous

Anonymous Sat 24 Jul 2021 03:25:23 No.13429469 Report

Quoted By: >>13429664 >>13429673 >>13429910 >>13429924

>>13429422
Name ONE real world scenario where a problem is solved by solving an ODE. I'll wait.

Anonymous

Anonymous Sat 24 Jul 2021 03:31:47 No.13429492 Report

Quoted By:

>>13428987
the general solution to ode's is quite literally guessing what the form of equation looks like and plugging it in to get information about it
hence you plug in e^rx to get the homogenous equation which depending on the roots tells you what type of solution you have

Anonymous

Anonymous Sat 24 Jul 2021 04:38:45 No.13429664 Report

Quoted By:

>>13429469
You are Catholic, two local bishops are claiming the right to execute canon law in your diocese. You need to determine how the bishops are related.

Anonymous

Anonymous Sat 24 Jul 2021 04:41:28 No.13429673 Report

Quoted By: >>13429678

>>13429469
Calculate the rate of change of a mans cum going into ur mouth

Anonymous

Anonymous Sat 24 Jul 2021 04:47:31 No.13429678 Report

Quoted By: >>13429686

>>13429673
So only semenslurpers use ODE?

Anonymous

Anonymous Sat 24 Jul 2021 04:51:57 No.13429686 Report

Quoted By:

>>13429678
I believe they are also employed by cumguzzlers.

Anonymous

Anonymous Sat 24 Jul 2021 06:42:11 No.13429910 Report

Quoted By:

>>13429469
calculating the trajectory of a particle or a rigid body in a force field (e.g. the earth revolving around the sun)

Anonymous

Anonymous Sat 24 Jul 2021 06:51:26 No.13429924 Report

Quoted By:

>>13429469
damped harmonic oscillator
there are many, many more
physics is virtually nothing but 1st and 2nd order odes, and pdes

Anonymous

Anonymous Sat 24 Jul 2021 12:26:59 No.13430444 Report

Quoted By: >>13430547

>>13428987
>why aren't the science and math boards separate

Mathematics is the part of physics where experiments are cheap.
- V.I. Arnold

Anonymous

Anonymous Sat 24 Jul 2021 13:07:51 No.13430547 Report

Quoted By:

>>13430444
Meanwhile physics before math was discovered:
>ugghhh this shiny dot in night sky pretty :)

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