绘图
 

x1=linspace(-0.0316,-0.0128);
y1=0.0001*x1+0.000247*x1./(x1+0.012716)+0.001385*x1./(x1+0.031736)+0.001222*x1./(x1+0.115473)+0.002645*x1./(x1+0.310559)+0.000832*x1./(x1+1.396648)+0.000169*x1./(x1+3.875969);
x2=linspace(-0.1154,-0.0318);
y2=0.0001*x2+0.000247*x2./(x2+0.012716)+0.001385*x2./(x2+0.031736)+0.001222*x2./(x2+0.115473)+0.002645*x2./(x2+0.310559)+0.000832*x2./(x2+1.396648)+0.000169*x2./(x2+3.875969);
x3=linspace(-0.3105,-0.1156);
y3=0.0001*x3+0.000247*x3./(x3+0.012716)+0.001385*x3./(x3+0.031736)+0.001222*x3./(x3+0.115473)+0.002645*x3./(x3+0.310559)+0.000832*x3./(x3+1.396648)+0.000169*x3./(x3+3.875969);
x4=linspace(-1.3965,-0.3107);
y4=0.0001*x4+0.000247*x4./(x4+0.012716)+0.001385*x4./(x4+0.031736)+0.001222*x4./(x4+0.115473)+0.002645*x4./(x4+0.310559)+0.000832*x4./(x4+1.396648)+0.000169*x4./(x4+3.875969);
x5=linspace(-3.8759,-1.3967);
y5=0.0001*x5+0.000247*x5./(x5+0.012716)+0.001385*x5./(x5+0.031736)+0.001222*x5./(x5+0.115473)+0.002645*x5./(x5+0.310559)+0.000832*x5./(x5+1.396648)+0.000169*x5./(x5+3.875969);
x6=linspace(-5,-3.8761);
y6=0.0001*x6+0.000247*x6./(x6+0.012716)+0.001385*x6./(x6+0.031736)+0.001222*x6./(x6+0.115473)+0.002645*x6./(x6+0.310559)+0.000832*x6./(x6+1.396648)+0.000169*x6./(x6+3.875969);
要求绘制如图