Problem in using 'break' and 'while'

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Jalali 2012-10-5

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/50002-problem-in-using-break-and-while

I have problem in the while loop below. Looks like the break doesn't work, because sometimes R<=0.3 and s becomes one or bigger. What I need is that when R<=0.3 the loop should stop, and when R>0.3 a new x should be generated.

x= rand(); a=0; s=0;
while x>0.1
    R=rand();
    if R<= 0.3
        a=a+1;
        break
    else
        s=s+1;
        x=rand();
    end
end

Thanks,

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回答（1 个）

Matt Fig 2012-10-5

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/50002-problem-in-using-break-and-while#answer_61048

编辑：Matt Fig 2012-10-5

在 MATLAB Online 中打开

This will prove to you that the break statement does work:

x= rand(); 
a=0; 
s=0;
while 1  % Infinite loop? If break doesn't work then yes!
    R=rand();
    if R<= 0.3
        a=a+1;
        break  % The only way out of the loop...
    else
        s=s+1;
        x=rand();
    end
end