roots

Find polynomial roots.

Syntax

• r = roots(p)

Input argument

• p - vector: polynomial coefficients

Output argument

• r - roots

Description

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

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

See also

poly.

History

Version	Description
1.0.0	initial version

Author

Allan CORNET