MATLAB: Can someone tell me what is wrong with this

doesn't workhelpMATLABpleasewhile loop

x1=5;
tau=0.1;
k=1;
while x(k)-x(k+1)>0.01
    k=k+1;
    x(k+1)=x(k)-tau*(2*x(k)-2);
end
figure(1)
plot(x,'b*-.');
grid;

Best Answer

Thanks for effort, i mixed up + with -. :/ Correct:
%Value of step coefficient tau=0.1
x(1)=5;
k=1;
tau=0.1;
while x(k)>1.01
k=k+1;
x(k+1)=x(k)-tau*(2*x(k)-2);
end
plot(x,'b*-');
grid;
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