Returns the companion matrix to a polynomial.
c = companion(a)Legacy name: compan
Coefficients of a polynomial in descending order of power. The first element in a is the leading coefficient of the polynomial, which is 1 for a monic polynomial. Therefore, an input vector of size n produces a companion matrix of size (n-1)-by-(n-1). a is a vector.
Companion matrix of a. The size of c equals the order of a.
A = [1, 2, 3, 4] C = companion(A)
Where This Node Can Run:
Desktop OS: Windows
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