poly

Syntax

R = poly(A)

R = poly(V)

Inputs

A

A square matrix.

Dimension: matrix

V

A vector.

Dimension: vector

Outputs

R

Vector.

Examples

Vector input:

R = poly([1,2,3;2,3,4;3,4,6])

R = [Matrix] 1 x 4
1.00000  -10.00000  -2.00000  1.00000

R = poly([1,3,5])

R = [Matrix] 1 x 4
1  -9  23  -15

Comments

For a square n x n matrix A, R contains the characteristic polynomial of A.

For a vector V, R contains the polynomial whose roots are the elements of x.