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/sci/ - Science & Math

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1945612 No.1945612 [Reply] [Original]

Alright /sci/ I am in need of some help with today's differential equations homework.

Tonight I'm having problems solving an initial value problem with non-constant coefficients using the method of the LaPlace transformation. I feel I've got the system down fairly well with constant coefficients, but the non-cons are killing me.

They problem in question is
tx''+tx'-2x'+x=0 with the initial condition of x(0)=0
*x denotes the function x(t)*

Any ideas?

>> No.1945640

I'll throw in that I'm getting X(s) to be equal to zero, but my intuition tells me that's wrong since my teacher would never put something like that on our homework, and wolfram|alpha has some messed up equation, though I can't put in initial conditions to it or else it gets prissy and just tells me they are the answer, but it wouldn't equal zero for all values of t.

>> No.1945663
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1945663

>todays differential equations homework.

http://www.4chan.org/rules

>Homework threads will be deleted, and the poster banned.

... no homework threads!

>> No.1945668

>today's differential equations homework.

>Sunday

>> No.1945672

>>1945663
I should specify.. it's not required homework.. just suggested problems.

>>1945668
The weekend is for drinking to forget the week, and Sunday is when you do all that you've put off.