function u0 = InitialCondition(X)

nPt = size(X,1);
%u0 = zeros(nPt,1); 


% sigma = 0.2; xref = 1/6; 
% xdim = ( X(:,1) - xref) / sigma; 
% ydim = ( X(:,2) - xref) / sigma; 
% ind = find( (xdim.^2 + ydim.^2)<=1 ); 
% u0(ind) = 0.25*(1 + cos(pi*xdim(ind))).*(1 + cos(pi*ydim(ind)));



 u0=0.5*(2-X(:,1));
 
 
end




