how to get out infinite loop

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OLUBUKOLA ogunsola 2016-6-24

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https://ww2.mathworks.cn/matlabcentral/answers/292147-how-to-get-out-infinite-loop

评论： jgg 2016-6-24

this code required to calculate the smallest multiple with uint64 format bit gets stuck on argument 45. it only displays busy . can someone explain why?

function answer = smallest_multiple (N)
limit =1e15;
for i = N:N:limit
      for j = N:-1:1
      if mod(i,j) ~= 0
          break
      end
      end
      if j == 1 
           answer =uint64(i);
          break
      end 
   end

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OLUBUKOLA ogunsola 2016-6-24

anything smaller than that comes back with the result ' output argument "answer" ( and maybe others) not assigned during call to "smallest_multiple" . but it doesn't do that with output argument up to 30. then it gives the error

jgg 2016-6-24

You break out of your loop if i is not divisible by j at any point; this means answer is not assigned in many loop iterations. This is probably not what you want to do here.

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