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22 Jun 2010
matlab生成螺旋矩阵
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n=5;
a=rand(1,n);
b=a(bsxfun(@(i,j)i+j-1-n*(i+j>n+1),1:n,(1:n)'))
产生一个螺旋型n*n矩阵,如:n=5时:
1 2 3 4 5
16 17 18 19 6
15 24 25 20 7
14 23 22 21 8
13 12 11 10 9
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