clear close all format compact set(groot,'defaulttextinterpreter','latex'); set(groot, 'defaultAxesTickLabelInterpreter','latex'); set(groot, 'defaultLegendInterpreter','latex'); poisson_neumann_2D_data; x = positions(1, :); y = positions(2, :); scatter(x, y, 10, solution, 'filled'); title('$u(x,y)$'); xlabel('$x$') ylabel('$y$') axis('equal') xlim([0 1]) ylim([0 1]) colorbar colormap jet