# Why do I get the error "illegal use of reserved keybord "while""?

21 views (last 30 days)
andres on 28 Mar 2014
Answered: andres on 28 Mar 2014
I need to run the following code, where the function @opt is already defined. When I try to run it, I get the error "illegal use of reserved keybord "while"". Actually, the "end" that is not well located is not recognized by matlab as an end (it appears written in black instead of blue). Why does this happen and how can I fix it? Thanks a lot in advance.
if true
% E3=zeros(50,50,4);
rn=sqrt(2*(1-cos(2*pi/n)));
for k=1:50
k
for j=1:51-k
alfa=k/52;
beta=j/52;
gamma=1-alfa-beta;
alfagorro=alfa/(1-beta);
gammagorro=gamma/(1-beta);
H=1;
Hgorro=H;
F=(n-1-H)/2;
[f,c]=fmincon(@opt,[1 1 1],[],[],[],[],[0 0 0],[],[],options);
costoviaH=pe/(2*f(2))+pv*[2*T0+t*(a*alfa*Y/(H*n*f(2))+b*alfagorro*Y/(H*n*f(2))+a*gamma*Y/(2*n*(n-1)*f(2))+b*gammagorro*Y/(2*n*(n-1)*f(2)))];
costoviaF=pe/(2*f(2))+pv*[F*rn*T0+(2*(F-1)+1/2)*t*(a*gamma*F*Y/(n*(n-1)*f(3))+b*gammagorro*F*Y/(n*(n-1)*f(3)));
while costoviaH<costoviaF && H<n-1
H=H+2;
Hgorro=H;
[f,c]=fmincon(@opt,[1 1 1],[],[],[],[],[0 0 0],[],[],options);
costoviaH=pe/(2*f(2))+pv*[2*T0+t*(a*alfa*Y/(H*n*f(2))+b*alfagorro*Y/(H*n*f(2))+a*gamma*Y/(2*n*(n-1)*f(2))+b*gammagorro*Y/(2*n*(n-1)*f(2)))];
F=(n-1-H)/2;
costoviaF=pe/(2*f(2))+pv*[F*rn*T0+(2*(F-1)+1/2)*t*(a*gamma*F*Y/(n*(n-1)*f(3))+b*gammagorro*F*Y/(n*(n-1)*f(3)));
end
for L=1:3
E3(k,j,L)=f(L);
end
E3(k,j,4)=c;
end
end
end

#### 1 Comment

Image Analyst on 28 Mar 2014
You forgot to paste the error message. "keybord" is not even an English word, and it's not in your code either so I know that's not the real error message. Please paste in ALL the red text, including line numbers, lines of code, everything . Don't snip or paraphrase like you did.

Michael on 28 Mar 2014
Both times you use "costoviaF" (lines 24 and 17) you fail to close the bracket at the end of your line.

andres on 28 Mar 2014
Wow, it was a very simple mistake, thank you very much, now it is working!