Creating Loop using while

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

Answer 1

[Wayne King]

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?

[James]

I think i got something but i dont think this is the answer

function[m] = func(~)

r = 10000;

m = 1;

while m ~= 1

    r = (10^(-m)*r);
    m = m - 1;

end

The answer im getting is 1

[Wayne King]

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]

I dont know now its not running. Is there something i need to add