k = polyder(p)
k = polyder(a,b)
[q,d] = polyder(b,a)
k = polyder(p)
, where p
is a vector whose elements are the coefficients of a polynomial in descending powers, returns the derivative of that polynomial. k
is a vector containing the coefficients of the derivative in descending powers.
k = polyder(a,b)
returns the derivative of the product of the polynomials a
and b
.
[q,d] = polyder(b,a)
returns the derivative of the polynomial quotient b/a
, where the derivative is represented by q/d
.
is obtained with
This result represents the polynomiala = [3 6 9];
b = [1 2 0];
k = polyder(a,b)
k =
12 36 42 18
(c) Copyright 1994 by The MathWorks, Inc.