# Thread: wave equation pde problem

1. ## wave equation pde problem

Hi everyone,

I'm having a bit of trouble with this pde problem:

i get the answer to be u(x,t)=0 but i am guessing thats not right.

is the general solution to this problem: u(x,t) = f(x+ct) + g(x-ct) ??

thanks

sarah

2. nm, got it!

3. Originally Posted by sarahisme
Hi everyone,

I'm having a bit of trouble with this pde problem:

i get the answer to be u(x,t)=0 but i am guessing thats not right.

is the general solution to this problem: u(x,t) = f(x+ct) + g(x-ct) ??

thanks

sarah
Duhamel's principle.

4. Originally Posted by hpe
right , yep i see now, thanks