>> n = 3;
>> A1 = 2*eye(n) - diag(ones(n-1,1),1) - diag(ones(n-1,1),-1)
>> A2 = 1./(repmat(1:n, n, 1)+repmat((1:n)', 1, n)-1)
用matlab写一个n阶矩阵
写不出来都无法运行快要写哭了求助!
>> n = 3;
>> A1 = 2*eye(n) - diag(ones(n-1,1),1) - diag(ones(n-1,1),-1)
>> A2 = 1./(repmat(1:n, n, 1)+repmat((1:n)', 1, n)-1)