MATLAB: Issue with vectors being the same length

linspaceplotvectorvector length

My code seems to be having a problem with plotting. I've even tried using linspace to 'fix' xx and Vz1 but that didn't seem to work. Any suggestions would be much appreciated
Error message:
Error using plot
Vectors must be the same length.
Error in Example2 (line 244)
plot(xx,Vz1,'b-','LineWidth',2);
Lines of code to fix:
Defining xx: 
               xa = 0;
                xb = 20;   
                xc = 40;    
                x1 = linspace(xa,xb,nn)';   
                x2 = linspace(xb,xc,nn)';    
                xx=[x1;x2];
Defining Vz1:
            Vz1 = 0*ones(nn,1);
            Vz2 = 0*ones(nn,1);
            Vz=[Vz1;Vz2];

Best Answer

                x1 = linspace(xa,xb,nn)';   
                x2 = linspace(xb,xc,nn)';    
                xx=[x1;x2];
so xx is going to be (nn x 1) + (nn x 1) = 2*nn x 1.
                Vz1 = 0*ones(nn,1);
so Vz1 is going to be nn x 1
            plot(xx,Vz1,'b-','LineWidth',2);
xx is 2*nn x 1, Vz1 is nn x 1. Different sizes.
Related Question