如何用matlab编写一个函数计算行列式的值，但是不用det？ 为什么我用MATLAB软件，算行列式的值，det(A)算出的...
\u4e3a\u4ec0\u4e48\u6211\u7528MATLAB\u7b97\u884c\u5217\u5f0f\u7684\u503c\uff0c\u7b97\u51fa\u7684\u4e0d\u662f\u4e00\u4e2a\u6570\u5b57\uff0c\u8fd8\u662f\u4e00\u4e2a\u884c\u5217\u5f0f\uff1fdet(A)?\u90a3\u662f\u4e0d\u5e94\u8be5\u7684\u554a
\u5728MATLAB\u91cc
det( ) \u662f\u6c42\u884c\u5217\u5f0f\u7684\u51fd\u6570
\u628a\u884c\u5217\u5f0fD\u8f93\u5165\u8fdb\u53bb\u4e4b\u540e
\u5f97\u5230\u7684\u7ed3\u679c\u5c31\u662f\u884c\u5217\u5f0f\u503c
\u4f60\u53ef\u4ee5\u53bb\u770b\u770b\u767e\u5ea6\u7ecf\u9a8c\u91cc\u7684\u4ecb\u7ecd
\u7f51\u9875\u94fe\u63a5
\u7b26\u53f7\u8ba1\u7b97\uff0c\u7406\u8bba\u4e0a\u53ef\u4ee5\u505a\u4efb\u610f\u5927\u5c0f\u7684\u6570\u7684\u8fd0\u7b97\uff0c\u5f53\u7136\u591a\u534a\u8fd0\u884c\u65f6\u95f4\u7206\u70b8\u3002
\u77e9\u9635\u9884\u5904\u7406
\u6bd4\u5982\u5229\u7528det(A)=a^b*det(A/a)\uff0c\u7b97\u51fa\u6765\u4ee5\u540e\u81ea\u5df1\u6362\u7b97\u3002\u5176\u4e2db\u4e3a\u65b9\u9635\u9636\u6b21\u3002
function d=det1(A)
[n,m]=size(A);
if n==m
if n==1; d=A;
elseif n==2, d=A(1,1)*A(2,2)-A(1,2)*A(2,1);
else, d=0; A1=A; A1(1,:)=[];
for i=1:n
A2=A1; A2(:,i)=[]; d=d+A(1,i)*(-1)^(1+i)*det1(A2);
end, end
else, error('A rectangular matrix cannot be handled.'); end
使用方法：
A=[16,2,3,13;5,11,10,8;9,7,6,12;4,,14,15,1];
det1(A)
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