function p=mmpadd(a,b)%MMPADD Polynomial Addition.% MMPADD(A,B) adds the polynomials A and B.% D.C. Hanselman, University of Maine, Orono ME 04469% 3/4/95% Copyright (c) 1996 by Prentice Hall, Inc.if nargin<2	error('Not enough input arguments')enda=a(:).';		% make sure inputs are polynomial row vectorsb=b(:).';na=length(a);	% find lengths of a and bnb=length(b);p=[zeros(1,nb-na) a]+[zeros(1,na-nb) b];  % pad with zeros as necessary