MathGroup Archive 2004

[Date Index] [Thread Index] [Author Index]

Search the Archive

newbie question DSolve


Hello all

I am trying to use DSolve to solve a ode with discontinuity in it (wave 
equation with a viscous damper injected at a location d)

This is what i am using

DSolve[{y''[x]-lamda^2*y[x]==DiracDelta[x-d]*y[x],y[0]==0,y[L]==
=0},y[x],x]

the problem I am facing is that

y[x] on the right hand side (next the delta function) varies w.r.t to 
the location

y[x]==y[x]&& 0<=x<=d
y[x]==y[L-x]&&d<=x<=L

I can solve the above equation without the y[x] coupled to the delta 
function

Please advise and thanks in advance,


Pratik Desai


ps: This is my third attempt at posting my query, I hope this time it 
makes it to the list :)




  • Prev by Date: BlockDiagonal
  • Next by Date: Re:A NIntegrate question
  • Previous by thread: BlockDiagonal
  • Next by thread: Re: newbie question DSolve