shiyan.m

采用分支定界算法

function[a,b,c]=shiyan(x,y,z)
%global a;
%if x<=1
%    y=1;
%    a=y;
%    return;
%else
%    y=shiyan(x-1)*x;a=y;
%    %disp(a);
%    %return
%end

if nargin<3  x=0
    if nargin<2 y=0
        if nargin<1 z=0
        end
    end
end
a=x;
b=y;
c=z;