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finding roots of equation in matlab

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qudsia Bashir
qudsia Bashir on 21 Nov 2019
Commented: Vladimir Sovkov on 21 Nov 2019
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.

Answers (1)

Nicolas B.
Nicolas B. on 21 Nov 2019
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.
  1 Comment
Vladimir Sovkov
Vladimir Sovkov on 21 Nov 2019
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

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