why i get error?

M_0=1;
EI=1;
fi=-pi:pi/300:pi;
C5=M_0/(2*EI);
gama=exp(i*fi);
delta_0=4+2*cos(fi);
C_2= [0 ;
  -C5*L*gama./delta_0;
   C5*(2*gama+1)./delta_0;
  -C5*(gama+1)./(L*delta_0)];

I GET:

??? Error using ==> vertcat
CAT arguments dimensions are not consistent.
Error in ==> intgration_for_v_for_loop_chek at 47
C_2= [0 ;

Answer 1

[Wayne King]

Is this what you want?

   M_0=1;
   L = 1;  
   EI=1;  
   fi=-pi:pi/300:pi;
   C5=M_0/(2*EI);
   gama=exp(i*fi);
   delta_0=4+2*cos(fi);
   C_2= [zeros(size(delta_0)) ;
        -C5*L*gama./delta_0;
       C5*(2*gama+1)./delta_0;
      -C5*(gama+1)./(L*delta_0)];

You did not tell us what L was, so I just used 1.

Answer 2

[Image Analyst]

In the first row you have only a single zero 0. But the second row, -C5*L*gama./delta_0, has as many elements as gama, which has as many elements as fi, which is 601. You can't have 1 element in row 1 and 601 elements in rows 2, 3, and 4. To fix, use as many elements in row 1 as the other rows, like Wayne showed you.