Question

define square matrix and diagonal matrix​

Answer 1

Step-by-step explanation:

A square matrix is diagonal if and only if it istriangular and normal. Any square diagonal matrix is also a symmetric matrix. A symmetric diagonal matrix can be defined as a matrix that is both upper- and lower-triangular. The identity matrix In and anysquare zero matrix are diagonal.

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Answer 2

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$\sf \: Square \: Matrix \downarrow$

A square matrix is an n × n matrix; that is, a matrix having the same number of rows as columns.

$\sf \: Diagnoal \: Matrix \downarrow$

A matrix having non-zero elements only in the diagonal running from the upper left to the lower right.