MATLAB: Why i get error

matlab function

i=i

MO=1;

fi=-pi:pi/100:pi;

y=(MO*(exp(fi*i))*(2*exp(fi*i)+1))/(EI*(8*exp(fi*i)+2*exp(2*fi*i)+2))

—

i got:

??? Error using ==> mtimes Inner matrix dimensions must agree.

Error in ==> rrrr at 10 y=(MO*(exp(fi*i))*(2*exp(fi*i)+1))/(EI*(8*exp(fi*i)+2*exp(2*fi*i)+2))

Best Answer

It would help if you told us what EI is. I just made it equal to 1 here. Is this what you are looking for?

And why do i=i????

 MO=1;
 fi=-pi:pi/100:pi;
 EI = 1;
 y=(MO*(exp(fi*1i)).*(2*exp(fi*1i)+1))./(EI*(8*exp(fi*1i)+2*exp(2*fi*1i)+2));

Related Solutions

MATLAB: Code for plot figure

lamda=0.2;
mu=1-lamda;
P1=mu^2/(mu+lamda)^2;
P2=2*lamda*mu/(mu+lamda)^2;
P3=lamda^2/(mu+lamda)^2;
display(P1);
display(P2);
display(P3);
t = 1:5:100 ;
P11 = zeros(size(t)) ; 
P22 = zeros(size(t)) ; 
P33 = zeros(size(t)) ; 
for i = 1:length(t)    
    P11(i)=((mu+lamda)^2)-( 2*lamda)*((mu-lamda)*exp(-(mu-lamda)*t(i))-mu+(lamda*exp(-2*(mu+lamda)*t(i))))-(lamda^2)*(2*exp(-mu*t(i))-2*exp(-(mu+lamda)*t(i))+1-exp(-2*(mu+lamda)*t(i)));
    P22(i)=((-2*lamda)*(mu-lamda)*exp(-(mu+lamda)*t(i))/(lamda+mu)^2)+(2*lamda*mu/(lamda+mu)^2)-2*(lamda)^2*exp(-2*(mu+lamda)*t(i));
    P33(i)=(lamda^2)/(lamda+mu)*((2*exp(-2*mu*t(i)))-(2*exp(-(mu+lamda)*t(i)))-exp(-2*(mu+lamda)*t(i))+1);
end
A=P11;
B=P33;
C=P22;
plot(t,A,t,B,t,C)
legend({'A','B','C'})

MATLAB: Why i get error

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.

Best Answer

Related Solutions

MATLAB: Code for plot figure

MATLAB: Why i get error

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