fact: Definition rcs' (R : idomainType) n (x : 'rV[R]_n.+1) := \row_(i < n.+1) (if i == ord0 then x ord0 (inord n) else x ord0 (inord i.-1)).
imports: mathcomp(all_ssreflect ssralg poly polydiv fingroup perm) mathcomp(finalg zmodp matrix mxalgebra mxpoly polydiv vector) ssralg_ext poly_ext f2 hamming linearcode dft