MATLAB: How to get rid of zeros in vector ans

functionhomeworkvectorwhile loop

function y = realvalue3(x)
n=1;
while n<= length(x)
 if abs(x(n))>=10^-12
         y(n)=x(n);
         n=n+1;
         continue
 end
n=n+1;
end
 realvalue3([1 -5 2 3 0 10^-13 3 -10^-14])
ans =
     1    -5     2     3     0     0     3
How do i make the answer show no zeros? it should show [1 -5 2 3 3]

Best Answer

One approach:
    function y = realvalue3(x)
    n=1;
    while n<= length(x)
        if abs(x(n))>=10^-12
            y(n)=x(n);
            n=n+1;
            continue
        end
        n=n+1;
    end
    y = y(abs(y)>0);                    % <— ADD THIS LINE
    end
EDIT — You can set the threshold to be whatever you want, for example:
y = y(abs(y)>=1);
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