fact: Definition Coefs (n i : nat) : tF := Const (match n with | 0 => (i == 0%N)%:R | 1 => [:: 2%:R^-1; 2%:R^-1; 0]`_i | n => coefs _ n i end).
imports: mathcomp.ssreflect.ssreflect mathcomp(ssrfun ssrbool eqtype ssrnat seq choice fintype) mathcomp(finfun path matrix) mathcomp(bigop order ssralg poly polydiv ssrnum zmodp div ssrint) mathcomp(polyorder polyrcf interval polyXY) mathcomp(qe_rcf_th ordered_qelim mxtens)