MATLAB: While loop with a boolean expression

while loop

why my boolean expression is not working , is there any syntax error. here is my code :

v=false;

while ((i < N)&&(v==false)) if (condition) v=true; i=i+1; else i=i+1; end end

Best Answer

Don't even use v. Just break:

while (i < N) 
    if (condition) 
       break;
    end 
    i=i+1;
end

Related Solutions

MATLAB: Repeat a condition from the first iteration of for loop

Hamed - if your for loop is something like

 for k=1:n

then you can replace it with a while loop and allow the looping to continue from the first iteration whenever your condition is true

 k = 1;
 while k<=n
     if condition is true
         % do something
         % reset k to repeat loop from first iteration
         k = 1;
     else
         k = k + 1;
     end
 end

The only trick is making sure that you don't get stuck in this loop. When would the condition be false for all iterations that would finally cause the code to exit the loop?

MATLAB: While Loop, question how to implement it

n=100;
x=rand(1,n);
k=1;
while k<n && x(k) <= 0.95
   k=k+1;
end
disp([num2str(k), ‘ is the index of the first element in x that is greater than 0.95’]);

Why are you not permitting the k == n case? What do you want to do if none of the elements are greater than 0.95 ?

Best Answer

Related Solutions

MATLAB: Repeat a condition from the first iteration of for loop

MATLAB: While Loop, question how to implement it

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