function[z2]=subz2(zs2,zr2,zl2,m,p) z2=zeros(6); z2(1,1)=zs2; z2(2,2)=zr2; z2(3,3)=zl2*m; z2(4,4)=zl2; z2(5,5)=zl2*(1-p); z2(6,6)=zl2*(p-m);