s = "S4 lineNode"><span class = "S5"><span class="S0">tau = 0.1;</span></span></div></div><div class = 'inlineWrapper'><div class = "S4 lineNode"><span class = "S5"><span class="S6">for </span><span class="S0">ep = [0.001 0.01 0.05]</span></span></div></div><div class = 'inlineWrapper'><div class = "S4 lineNode"><span class = "S5"><span class="S0">  lambda = eig(-Dx + ep*Dxx);</span></span></div></div><div class = 'inlineWrapper'><div class = "S4 lineNode"><span class = "S5"><span class="S0">  plot(real(tau