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Finite Element Analysis Toolbox
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ex_poisson1.m File Reference


EX_POISSON1 1D Poisson equation example.

[ FEA, OUT ] = EX_POISSON1( VARARGIN ) Poisson equation on a line with a constant source term equal to 1, homogenous boundary conditions, and exact solution (-x^2+x)/2. Accepts the following property/value pairs.

Input       Value/{Default}        Description
hmax        scalar {1/10}          Grid cell size
sfun        string {sflag1}        Finite element shape function
iphys       scalar 0/{1}           Use physics mode to define problem    (=1)
                                   or directly define fea.eqn/bdr fields (=0)
                                   or use core assembly functions        (<0)
iplot       scalar 0/{1}           Plot solution (=1)
Output      Value/(Size)           Description
fea         struct                 Problem definition struct
out         struct                 Output stuct
Generated fields of fea:
Generated fields of out: