Orcad / Matlab: How to plot the roots of a polynomial

Posted by Tom on Stack Overflow See other posts from Stack Overflow or by Tom
Published on 2010-03-14T04:42:34Z Indexed on 2010/03/14 4:45 UTC
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matlab

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octave

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Hi everyone,

Im trying to plot the roots of a polynomial, and i just cant get it.

First i create my polynomial

p5 = [1 0 0 0 0 -1] %x^5 - 1
r5 = roots(p5)
stem (p5)

Im using the stem function, but I would like to remove the stems, and just get the circle around the roots.

Is this possible, is stem the right command?

Thanks in advance,

PS: This is not homework, but very close, will tag it if requested.

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