可以用循环做,试试下面的代码
m = 7; n = 7;
a=rand(1,n); % 代替
A =zeros(m,n);
A(1,:) = a;
for i = 2:m
A(i,i+1:end) = a(1:n-i);
end
format short
A
结果是随机的
A =
0.4387 0.3816 0.7655 0.7952 0.1869 0.4898 0.4456
0 0 0.4387 0.3816 0.7655 0.7952 0.1869
0 0 0 0.4387 0.3816 0.7655 0.7952
0 0 0 0 0.4387 0.3816 0.7655
0 0 0 0 0 0.4387 0.3816
0 0 0 0 0 0 0.4387
0 0 0 0 0 0 0