polyadd.m

《MATLAB在控制系统中的应用》实例程序

% ------  polyadd.m ------
% 求两个多项式之和 
function[poly] = polyadd(poly1,poly2)
if length(poly1) < length(poly2)
    short = poly1;
    long = poly2;
else
    short = poly2;
    long = poly1;
end
mz = length(long)-length(short);
if mz > 0
    poly = [zeros(1,mz),short] + long;
else
    poly = long + short;
end
% ------ end ------