there is a problem about these code in Matlab

code is as below:

     function [y1,y2]=test(x1,x2)
if nargin==1
    y1=x1;
    if nargout==2
        y2=x1;
    end
else
    if nargout==1
        y1=x1+x2;
    else
        y1=x1;
        y2=x2
    end
end

after that, I execute the command as below: [x,y]=test(3,6)

then I get the result as below: y2=6 x=3 y=6

But my expect result shoud be: x=3 y=6

why does y2 come out here?

Answer 1

[Carlos]

Try

function [y1,y2]=test(x1,x2)
if nargin==1
    y1=x1;
    if nargout==2
        y2=x1;
    end
else
    if nargout==1
        y1=x1+x2;
    else
        y1=x1;
        y2=x2;
    end
end

[Carlos]

y2=x2; instead of y2=x2

[vx2008]

exactly，thanks