/sci/ - Science & Math » Thread #7618096

I'm really fucking glad I'm not in ODEs anymore. I'll honestly take an ass raping in Analysis over being lost as fuck in what's basically a physics class for math students.

Anonymous

Anonymous Mon 26 Oct 2015 22:24:12 No.7618205 Report Delete

Quoted By:

>>7618127
I have the fundamental set of solutions, and I used undetermined coefficients to get a complete solution of F / ( w_0^2 - w^2 ) + c1 cos (wt) + c2 sin (wt).

I don't understand where any of their answer is coming from- if we use superposition, shouldn't it be a sum? And how is the argument of the sin function ever going to change?

Anonymous

Anonymous Mon 26 Oct 2015 22:26:17 No.7618213 Report Delete

Quoted By: >>7618238

>>7618202
I'm a math/physics double mahor, so I should be good at this tbh, it's just I'm in a honors/regular split lecture and we are barely taught the hard stuff, just left to figure it out on our own on psets that are graded for accuracy

topkek

Anonymous

Anonymous Mon 26 Oct 2015 22:41:44 No.7618238 Report Delete

Quoted By:

>>7618213
My class was similar, except its a small university so there was only one section offered. You had the best kids in the physics department against the best kids in the math department. Most of the physics students kicked our asses

Anonymous

Anonymous Mon 26 Oct 2015 23:31:28 No.7618327 Report Delete

Quoted By:

>>7618111
why solve it when you have the solution?

Anonymous

Anonymous Mon 26 Oct 2015 23:50:19 No.7618369 Report Delete

Quoted By:

>>7618096
do as the hint say and start with u=sum a_n x^n

m sum (n-1)n a_n x^(n-2) +sum ka_n x^n = Fcos(wt)

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