% % [V,n,p,res,niter] = DDGOXnlpoisson (mesh,Dsides,Sinodes,Vin,nin,pin,... % Fnin,Fpin,D,l2,l2ox,toll,maxit,verbose) % % solves $$ -\lambda^2 V'' + (n(V,Fn,Tn) - p(V,Fp,Tp) -D) = 0$$ %