Function: matbasistoalg
Section: number_fields
C-Name: matbasistoalg
Prototype: GG
Help: matbasistoalg(nf,x): nfbasistoalg applied to every element of the
 matrix or vector x.
Doc: $\var{nf}$ being a number field in \kbd{nfinit} format, and $x$ a
 (row or column) vector or matrix, apply \tet{nfbasistoalg} to each entry
 of $x$.
