What is the way to break a loop in Matlab when a number is repeated?

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To break a loop in Matlab when a number is repeated, you can use the 'break' statement. Here is an example code:

a = [1 2 3 4 5 6 7 7 8 9];
for i=1:length(a)-1
    if a(i)==a(i+1)
        disp('Number repeated!');
        break;
    end
    disp(['a(', num2str(i), ') = ', num2str(a(i))]);
end

In this code, the 'for' loop goes through all elements of the array 'a'. When two consecutive elements are equal, the 'if' statement is true and the 'break' statement is executed, ending the loop. Otherwise, the loop continues and the message is displayed with the value of each element of 'a'.