APM346-2012 > Home Assignment 2

Problem4

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Vitaly Shemet:
Are we allowed in part "a" to use initial wave equation for equality proof? ([d^2u/dt^2-d^2u/dx^2=0] in de/dt=dp/dx and de/dx=dp/dt (partials) )

Victor Ivrii:

--- Quote from: VitalyShemet on September 30, 2012, 11:33:01 AM ---Are we allowed in part "a" to use initial wave equation for equality proof? ([d^2u/dt^2-d^2u/dx^2=0] in de/dt=dp/dx and de/dx=dp/dt (partials) )

--- End quote ---

Please use \partial instead of d

Yes, you are allowed

Bowei Xiao:
And I believe that's the only condition u have  8),Are u sure u are not gonna use it? ;D :D

Vitaly Shemet:

--- Quote ---And I believe that's the only condition u have  ,
--- End quote ---
Not only. u(x,t) must be continuous and have partials up to 3rd degree

Bowei Xiao:
well..yes,that's true, I always assume the Utt exisits otherwise the equation doesn't make sense though

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