<< polyvalm

Polynomials

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roots

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Find polynomial roots.

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Syntax

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r = roots(p)

Input argument

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p

vector: polynomial coefficients

Output argument

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r

roots

Description

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r = roots(c) finds the roots of the polynomial c. r is a column vector.

This function uses the companion matrix of the polynomial to find the roots.

Example

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p = [1 0 0 0 -1];
r = roots(p)

See also

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poly.

History

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Version	Description
1.0.0	initial version

Author

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Allan CORNET