The Poisson Class

The Poisson class provides an easy way to define and solve the Poisson equation

$\displaystyle -u\hackscore{,ii}=f\; .$ (81)

with homogeneous boundary conditions

$\displaystyle n\hackscore{i}u\hackscore{,i}=0$ (82)

and homogeneous constraints

$\displaystyle u=0$    where $\displaystyle q>0$ (83)

$ f$ has to be a scalar Data object in the general FunctionSpace and $ q$ must be a scalar Data object in the solution FunctionSpace.


\begin{classdesc}{Poisson}{domain}
opens a Poisson equation on the \class{Domain...
...class{Poisson}\xspace is derived from \class{LinearPDE}\xspace .
\end{classdesc}

\begin{methoddesc}[Poisson]{setValue}{f=escript.Data(),q=escript.Data()}
assigns new values to \var{f} and \var{q}.
\end{methoddesc}

esys@esscc.uq.edu.au