function  y=compute(x)%COMPUTE Summary of this function goes here%  Detailed explanation goes herey1=sqrt(abs(x(1,1)+x(2,1))^2+abs(x(1,2)+x(2,2))^2);y2=sqrt(abs(x(1,1)-x(2,1))^2+abs(x(1,2)-x(2,2))^2);y=cat(2,y1,y2);