why i get error?

Question

razzz 2014-1-1

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/111188-why-i-get-error

回答： Image Analyst 2014-1-1

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 ;

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Answer 1

Wayne King 2014-1-1

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https://ww2.mathworks.cn/matlabcentral/answers/111188-why-i-get-error#answer_119842

编辑：Wayne King 2014-1-1

在 MATLAB Online 中打开

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.

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Answer 2

Image Analyst 2014-1-1

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/111188-why-i-get-error#answer_119844

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.