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polyder


Polynomial differentiation.


Syntax


k = polyder(p)
k = polyder(a, b)
[q, d] = polyder(a, b)

Input argument


p

vector: polynomial coefficients

a

row vector: polynomial coefficients

b

row vector: polynomial coefficients

Output argument


k

row vector: differentiated polynomial coefficients

q

row vector: numerator polynomial

d

row vector: denominator polynomial

Description


k = polyder(p) return the coefficients of the derivative of the polynomial whose coefficients are given by the vector p.

k = polyder(a, b) returns the derivative of the product of the polynomials a and b.

[q, d] = polyder(a, b) returns the derivative of the quotient of the polynomials a and b.

Example


p = [30 0 -20 0 10 50];
q = polyder(p)

See also


polyval, poly.

History


Version Description
1.0.0 initial version

Author


Allan CORNET

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