%MAKEPINS subroutine for redundancy routine.
% MAKEPINS(A,L,SUPPORTS) creates a submatrix for the redundancy routine.
% Not useful as a stand-alone routine.
% Details are to be found in Mastering Mechanics I, Douglas W. Hull,
% Prentice Hall, 1998
% Douglas W. Hull, 1998
% Copyright (c) 1998-99 by Prentice Hall
% Version 1.00
if ROW<= COL