% -*- texinfo -*-
% @deftypefn{Function File} [@var{A}, @var{Jac}, @var{res} ] = @
% ASMbuildsystem (@var{instruct}, @var{x}, @var{t})
%
% Cycles through the circuit description structure @var{instruct}
% to build the system matrices @var{A}, @var{Jac}, @var{res} for
% the current step of the Newton method.
%
% @itemize @minus
% @item @var{x} is the current value of the state variables
% @item @var{t} is the current time point
% @end itemize
%
% see the @cite{IFF file format specifications} for details about
% the output matrices.
%
% @seealso{ASMinitsystem}
%
% @end deftypefn