error:inner matrix dimensions must agree

hi.i'm getting this error.can you help me please? i attached the m-file

Answer 1

[Wayne King]

The initial problem is coming from line 36:

Lm=((kc.^2).*(L1+L2)+sqrt((k2^4).*((L1+L2).^2)+4*(kc.^4)*(1-(kc.^2)).*L1.*L2))/(2.*(1-(kc.^2)));

in this part of the calculation:

4*(kc.^4)*(1-(kc.^2))

kc is 1x11 so you can multiply kc*kc, you have to multiply them element by element

   Lm=((kc.^2).*(L1+L2)+sqrt((k2^4).*((L1+L2).^2)+4*(kc.^4).*(1-(kc.^2)).*L1.*L2))/(2.*(1-(kc.^2)));

You have similar problems in the next line though.

Answer 2

[cagri]

thanks a lot but i couldn't fix the problem.can you help a little more please?

[Wayne King]

are you saying you did not understand how to fix the line I showed you, or you could not fix the error in the next line (where I indicated there was an error)

[cagri]

i did not understand how to fix it,sir.if it is possible.can you show or send me the fixed code?thanks again for your interest..