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