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Creating Loop using while

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James
James 2013-9-30
关闭： MATLAB Answer Bot 2021-8-20
function [r] = func(~)
r = 10000;
m = 3;
while (m ~=0);
r = (10^(-m)*r);
m = m - 1;
end
I keep getting an error stating that m is undefined and not sure why

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回答（1 个）

Wayne King
Wayne King 2013-9-30
I have no trouble saving the M-file func.m in a folder on the MATLAB path, then executing
>> r = func
which returns 0.01
You don't need the ~ by the way
function r = func
r = 10000;
m = 3;
while (m ~=0);
r = (10^(-m)*r);
m = m - 1;
end
How are you trying to call the function?
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Wayne King
Wayne King 2013-9-30
That can't be what the above returns, the above returns 10000. In the code above you have m=1, then you have while m~=1 so the while loop never executes and the answer is simply what you have declared r to be which is 10^4.
James
James 2013-9-30
I dont know now its not running. Is there something i need to add

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