The GetInfo(P, subject) command returns information about the hypergeometric polynomial P that depends on the value of subject.

hypergeom: hypergeometric functional equation satisfied by P and the normalization coefficient of the Rodrigues formula.

recurrence: three-term recurrence for P.

derivative: derivative of P.

structural: structural relation(s). If the optional equation root=val is specified, GetInfo returns the partial structural relation with respect to val. This is available for only continuous hypergeometric polynomials.

derivative_representation: derivative representation for P. If the optional equation root=val is specified, GetInfo returns the partial derivative representation with respect to val. This is available for only continuous hypergeometric polynomials.