Question

Any matrix A is called real if all
aij are​

Answer 1

Answer:

An n × 1 matrix is called a column vector, and a 1 × m matrix, a row vector. An n × n matrix is called square. An n × n matrix A = (aij) is called diagonal if aij = 0 for i = j.

Answer 2

Answer:

An n × 1 matrix is called a column vector, and a 1 × m matrix, a row vector. An n × n matrix is called square. An n × n matrix A = (aij) is called diagonal if aij = 0 for i = j.

Step-by-step explanation:

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