*lambda),imag(tau*lambda),</span><span class="S7">'.'</span><span class="S0">), hold </span><span class="S7">on</span></span></div></div><div class = 'inlineWrapper'><div class = "S4 lineNode"><span class = "S5"><span class="S6">end</span></span></div></div><div class = 'inlineWrapper'><div class = "S4 lineNode"><span class = "S5"><span class="S0">axis </span><span class="S7">equal</span><span class="S0">,  grid </span><span class="S7">on</span><span class="S0">    </span><span class="S8">% ignore this line