finding roots of equation in matlab

I want to find roots of an equation using roots command.My code is

p=[1 0.45 0 -0.0133 -0.08 0 0.016]

r=roots(p)

but when i run it matlab gives error

Error=Attempt to execute SCRIPT roots as a function

Someone kindly help me to remove this error i willbe very thankful to u.

Answer 1

[Nicolas B.]

I would be you, I would check whether you don't have any home-made script named roots in your MATLAB path.

If you have no idea where it could be, maybe run it first once with:

roots;

Then, maybe, the output of the script would give you some hints.

[Vladimir Sovkov]

This may be the case indeed. The in-built Matlab "roots" works perfectly

p=[1 0.45 0 -0.0133 -0.08 0 0.016];
>> roots(p)

ans =

        -0.0941615598738199 +     0.564658612501628i
        -0.0941615598738199 -     0.564658612501628i
         -0.576214580558998 +                     0i
         -0.474450496188147 +                     0i
          0.394494098247393 +     0.151545050491967i
          0.394494098247393 -     0.151545050491967i