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Member of the linear systems class.

Syntax

c = polyscale(a, b)

Description

Scales the roots of a polynomial.

Details

Examples

Inputs

Name	Description
a	Specifies a polynomial.
b	Specifies the scaling rate.

Outputs

Name	Description
c	Returns the scaled polynomial.

Details

In c = polyscale(a, b), LabVIEW replaces the polynomial a[1]*z^n+...+a[n-1]*z+a[n] with the new polynomial c[1]*z^n+...+c[n-1]*z+c[n], where c[1] = a[1], ..., c[n-1] = a[n-1]*b^(n-2), c[n] = a[n]*b^(n-1).

Examples

a = rand(1, 6);
b = polyscale(a, 2);
ra = roots(a);
rb = roots(b);
plot(real(ra), imag(ra), 'ro', real(rb), imag(rb), 'b*')

Related Topics

poly
polystab
roots