%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%                                                                %
%%  Definition av hastighetskonstanten c(x,y) i ekvationen        %
%%                                                                %
%%      -div(a(x,y)*grad(u(x,y))) + c(x,y)*u(x,y) = f(x,y)        %
%%                                                                %
%%  Variabler:  delomradesnummer   heltal                         %
%%              x, y               reella tal                     %
%%              reaktion           reellt tal                     %
%%                                                                %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function reaktion = c_2D(x,y,delomradesnummer)

% Funktionen  c(x,y)
%
% Exempel:  reaktion = 0;

reaktion = 0;
