why loop missing or extra characters

w0=ones(4000,1)
A=readmatrix('matrix.txt')
count1=0
count2=0
while

Invalid expression. Check for missing or extra characters.

Error in connector.internal.fevalMatlab

Error in connector.internal.fevalJSON

    time1=tic
    [lam,i]=powereig(A,w0,1)
    fprintf('With the tolerance set to 1, the estimated eigenvalue is:%f',i)
    count1=count1+1
    fprintf('Iteration count:%d',count1)
    break
end

while
    time1=tic
    [lam,i]=powereig(A,w0,10^-5)
    fprintf('With the tolerance set to 1, the estimated eigenvalue is:%f',i)
    count2=count2+1
    fprintf('Iteration count:%d',count2)
    ftime2=toc
    fprintf('powereig() Time Elapsed:%d',ftime2)
    break
end

Error: File: Lab3_B_505863264.m Line: 5 Column: 6

Invalid expression. Check for missing or extra characters.

Answer 1

[Image Analyst]

You need to have a condition for the while statement that tells it when to continue or quit the loop. You have just a bare while with no condition at all after it!

[Craig Johnson]

oh right thanks

[Image Analyst]

If that solves your problem, can you click the "Accept this answer" link 🙂,

or else tell me what is still not working.