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| polyder | Examples See Also |
Syntax
k = polyder(p) k = polyder(a,b) [q,d] = polyder(b,a)
Description
Thepolyder function calculates the derivative of polynomials, polynomial products, and polynomial quotients. The operands a, b, and p are vectors whose elements are the coefficients of a polynomial in descending powers.
k = polyder(p)
returns the derivative of the polynomial p.
k = polyder(a,b)
returns the derivative of the product of the polynomials a and b.
[q,d] = polyder(b,a)
returns the numerator q and denominator d of the derivative of the polynomial quotient b/a.
Examples
The derivative of the product
a = [3 6 9];
b = [1 2 0];
k = polyder(a,b)
k =
12 36 42 18
This result represents the polynomial 
See Also
conv, deconv