id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
663	Pol2VMat fails sometimes in forward polinomials	Víctor de Buen Remiro	Víctor de Buen Remiro	"In this code, Matrix PolMat works fine but equivalent VMatrix Pol2VMat returns a matrix of zeroes

{{{
//Regular AutoRegressive degree
Real p = IntRand(2,2);
//Regular AutoRegressive polynomial
Polyn ar = RandStationary(p);
//Regular Moving Average degree
Real q = IntRand(3,3);
//Regular Moving Average polynomial
Polyn ma = RandStationary(q);

Polyn psiF = ChangeBF(Expand(ma/ar,Max(p,q)));

Matrix  cov_za_t_ = PolMat  (psiF, p, q);
VMatrix cov_za_t  = Pol2VMat(psiF, p, q);

WriteLn(""cov_za_t_ = ""<<cov_za_t_);
WriteLn(""cov_za_t  = ""<<Matrix VMat2Mat(cov_za_t));
}}}"	defect	closed	highest		Math	1.1.7	blocker	fixed	PolVMat, PolMat