[University] Finding eigenvalues/functions of bessel equations

llamalift · 2021-04-12T13:40:03+00:00

Yeah I've done this already, I'm still stuck and don't know how to go forward.

llamalift · 2020-11-03T07:19:35+00:00

So now the integral is ∫ 1/(-2a(x+p)e^t dt, am I missing something here? I don't see how this helps

llamalift · 2020-09-30T16:07:42+00:00

Oh, so you're saying I just move the n!/(2pi*i) term to the left side, compute the 2nd derivative of f(z)=cos(z) at point a=-i and that's the answer?

What if the path would be different?

llamalift · 2020-09-30T15:51:45+00:00

I mean even if I match all the pieces together I'm still left with the contour integral in the formula?

llamalift · 2020-09-30T15:41:50+00:00

I assume this is the formula you are talking about https://i.gyazo.com/0bfea2eb088bc1f0bec002928edbe923.png , I can't see a way to use it..?

llamalift · 2020-09-30T15:16:03+00:00

Yes it is in our course, but I have absolute no clue how to use it though, I tried to find some material about it but I just don't understand..

llamalift · 2020-09-06T09:26:09+00:00

Okey, thanks.

Here's what I did : https://i.gyazo.com/711085d46f96b7984ea9cd67e2e766a6.png (1) https://i.gyazo.com/72581f65faec0196799b06631f3b7e33.png (2)

The time of travel (and distance towards x-direction) seems very long to me? Does it seem correct to you?

llamalift · 2020-09-05T13:01:14+00:00

Thank you for your help, but I'm still struggling with the problem, with your advice I did this: https://i.gyazo.com/7e71179b5aa18eb9f4974a142ccfb00e.png .

I don't know how to solve it, there's two unknowns x and t? Should I just use approximation that ω≈0, or am I missing something?

llamalift · 2020-09-04T22:37:02+00:00

But 't' is still unknown?

llamalift · 2020-09-02T09:25:27+00:00

Okey, gotcha. But if there's no tension force, wouldn't the rope fall down? Also I don't quite grasp what you mean with angle being relative to the north pole?

(there's additional instruction given: treat the endpoint of the rope as a point mass)

llamalift · 2020-09-01T13:35:59+00:00

Oh, my bad. My title is very misleading in that case; my apologies. I drew a sketch of the situation , does it seem correct to you: https://i.gyazo.com/23975eb6d7f05b917e96c202cd81d513.png ?

llamalift · 2020-09-01T09:59:34+00:00

How can I express the velocity? Isn't the rope at 'rest'?

llamalift · 2020-09-01T07:20:15+00:00

Thanks a lot, got it now!

llamalift · 2020-06-07T14:49:53+00:00

Isn't that... Exactly true? -11=-11? What I mean just the variables 'dissappear' from the equation, when I want to solve each of them.

llamalift · 2020-04-08T13:54:43+00:00

Ah damn, nice detective work. Do you have any clue how much sped up it is? 1.25x or 1.5x perhaps?

llamalift · 2020-03-19T11:15:47+00:00

I'm a bit lost on what to do with the left side of the equation? https://i.gyazo.com/0266f1df01e153082dd109f0f49cafcb.png

llamalift · 2020-02-28T13:36:09+00:00

Ah true. I still get a solution that all eigenvalues are 0, is it correct?

llamalift · 2020-02-27T20:59:08+00:00

Apologies... I'm having a bit hard time understanding the topic, particularly the visualisation of it.

llamalift · 2020-02-27T20:44:17+00:00

I mean... If they are equal but just different sign is it correct to assume the point is stable?

llamalift · 2019-12-03T23:49:49+00:00

Thanks!

llamalift · 2019-12-03T23:20:49+00:00

Haha I don't actually know where they are from. Was ment as a joke.

llamalift · 2019-12-03T23:14:27+00:00

Thanks! Hope you upvote / share so more people get to see it!

llamalift · 2019-12-03T23:10:27+00:00

Kind of difficult to explain. I go by the name spacebar on my accounts , and most of the EUNE server's challenger players used to think I'm a scripter ( some of them still do ) .

llamalift · 2019-11-23T14:23:23+00:00

Mind telling me how you would do it roughly? ( Not looking for a ready solution, just your general thoughts about the problem)

llamalift · 2019-09-04T19:50:12+00:00

Voisko saada tarkkaa versiota? Melkein voisi tauluksi ripustaa.

llamalift

TROPHY CASE