gusucode.com > 《精通matlab 7》包括配套光盘 > 配套光盘里的程序附件/Ex-30/testclass/@polynom/polyval.m

    function y = polyval(p,x)
% POLYNOM/POLYVAL  POLYVAL(p,x) evaluates p at the points x.
y = 0;
for a = p.c
   y = y.*x + a;
end