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Messages - James McVittie

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16
Home Assignment 1 / Re: Problem 5
« on: September 23, 2012, 04:00:49 PM »
I think you're right Jinlong. That was what I meant by my previous post. I could not find any other mention of a Goursat problem in the notes except on the first set of notes of the second week.

17
Home Assignment 1 / Re: Problem 5
« on: September 23, 2012, 12:59:26 PM »
My question was with the Goursat problem, should it be of the form:

$$u_{tt}-c^{2}u_{xx}=0$$

$$u(t=\tau)=g(x)$$

$$u_{t}(t=\tau)=h(x)$$

like the example from class?

18
Home Assignment 1 / Re: Problem 5
« on: September 23, 2012, 10:54:57 AM »
For the initial conditions for Problem 5 (c) should they both be at x = 3t or is it not a typo?
Thanks

19
Technical Questions / Re: Testing Math
« on: September 20, 2012, 10:04:04 PM »
This is just a test to see whether I can copy and paste from LyX:

u(x, t) = \varphi(x-ct)+\phi(x+ct)-\intop_{x-ct}^{x+ct}g(y)dy

20
Home Assignment 1 / Problem 4
« on: September 20, 2012, 06:05:25 PM »
For Part (c) of Problem 4, does it refer to the solution of (5) or (6) or both?

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