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eye drops


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考题 将矩阵A对角线元素加30的命令是()。A.A+30*eye(size(A))B.A+30*eye(A)C.A+30*ones(size(A))D.A+30*eye(4)

考题 将矩阵A对角线元素加30的命令是()A.A+30*eye(size(A))B.A+30*eye(A)C.A+30*ones(size(A))D.A+30*eye(4)

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考题 3、将矩阵A对角线元素加30的命令是()。A.A+30*eye(size(A))B.A+30*eye(A)C.A+30*ones(size(A))D.A+30*eye(4)

考题 将矩阵A对角线元素加50的命令是()。A.A+50*eye(size(A))B.A+50*eye(A)C.A+50*ones(size(A))D.A+50*eye(4)