Poisson_problem_solver/f.m at main · benoitk29/Poisson_problem_solver · GitHub

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function val = f(x,y)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% f :
% Evaluation de la fonction second membre.
%
% SYNOPSIS val = f(x,y)
%
% INPUT * x,y : les 2 coordonnees du point ou on veut evaluer la fonction.
%
% OUTPUT - val: valeur de la fonction sur ce point.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%A COMPLETER
% Xn=size(x,1);
% val =ones(Xn,1);
val= (1 + 5*pi^2) * cos(pi * x) .* cos(2 * pi * y);
end

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                     fin de la fonction
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%24