y = polyval(p,S)
y
=
polyval(p,S)
, where p
is a vector whose elements are the coefficients of a polynomial in descending powers, is the value of the polynomial evaluated at S
. If S
is a matrix or vector, the polynomial is evaluated at each of the elements.
polyvalm(p,S)
, with S
a matrix, evaluates the polynomial in a matrix sense. See polyvalm
for more information.
is evaluated at s = 5 with
which results inp = [3 2 1];
polyval(p,5)
For another example, seeans =
86
polyfit.
conv
,poly
,polyfit
,polyvalm
,residue
,roots
(c) Copyright 1994 by The MathWorks, Inc.