/sci/ - Science & Math » Thread #13489089

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Anonymous Sun 08 Aug 12:39:49 2021 No.13489089 View Reply Original Report

Quoted By: >>13489124 >>13489286 >>13491586

When the fuck does one give up and just use perturbation theory on these motherfuckers?

Anonymous

Anonymous Sun 08 Aug 2021 12:53:47 No.13489124 Report

Quoted By:

>>13489089
that's a linear differential equation, there should be no trouble here

Anonymous

Anonymous Sun 08 Aug 2021 12:56:23 No.13489133 Report

Quoted By: >>13489260

>When the fuck does one give up and just use perturbation theory on these motherfuckers?
When they're too smoothbrain to find an analytic solution.

Anonymous

Anonymous Sun 08 Aug 2021 13:34:46 No.13489260 Report

Quoted By: >>13489266

>>13489133
people who believe in real numbers be like
>let f be a solution of the equation
>therefore f is a solution
how do you know what f actually looks like when we need to use it?
>we can just compute it to any precision we like lmao what's wrong with you

Anonymous

Anonymous Sun 08 Aug 2021 13:36:12 No.13489266 Report

Quoted By: >>13489301

>>13489260
Take your meds.

Anonymous

Anonymous Sun 08 Aug 2021 13:43:05 No.13489286 Report

Quoted By:

>>13489089
Use perturbation theory when you have weak nonlinearities, this one you can use a laplace transform to solve, as an algebraic equation in the frequency domain, as it's linear.

Anonymous

Anonymous Sun 08 Aug 2021 13:45:01 No.13489301 Report

Quoted By:

>>13489266
>t. 1st year undergrad

Anonymous

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Anonymous Sun 08 Aug 2021 22:03:34 No.13491586 Report

Quoted By:

>>13489089
>just use perturbation theory
I know I am outing myself as a pseud, but can you recommend a good introduction to perturbation theory? In my course it was barely covered and never really understood it.

Anonymous

Anonymous Sun 08 Aug 2021 22:05:00 No.13491594 Report

Quoted By:

>nooo you can't just make me use green's functions
Kek get filtered.

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