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 Author Comment/Response Martin Wijaya 12/12/12 10:27am Dear All I have a PDE as a the following: u is a function of z(depth) and t(time) and C is just a constant du/dt=(d^2u/dz^2)*C I try to solve it by writing it like this NDSolve[{D[u[y, t], t] == D[u[y, t], {y, 2}], u[0, 0] == 100, u[2, 0] == 0, D[u[2, 0]] == 0, D[u[0, 0] == 0]}, u, {{y, 0, 2}, {t, 0, 10}}] however, this is the result that I got NDSolve::dsvar: {y,0,2} cannot be used as a variable. >> The attachment is a notebook that I used Please help Regards Martin Wijaya Attachment: NDSsolve practice.nb, URL: ,

 Subject (listing for 'PDE with two variable') Author Date Posted PDE with two variable Martin Wijaya 12/12/12 10:27am Re: PDE with two variable Bill Simpson 12/12/12 12:02pm Re: Re: PDE with two variable Martin Wijaya 12/13/12 09:33am Re: Re: Re: PDE with two variable Bill Simpson 12/13/12 11:02am Re: Re: Re: Re: PDE with two variable Martin Wijaya 12/15/12 09:42am Re: Re: Re: Re: Re: PDE with two variable Bill Simpson 12/16/12 1:46pm Re: Re: Re: Re: Re: Re: PDE with two variable Martin Wijaya 12/17/12 11:28am Re: PDE with two variable Martin Wijaya 12/17/12 00:18am Re: Re: PDE with two variable Bill Simpson 12/17/12 10:59am
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