Answer:
The transpose of a row matrix is a column matrix. And the transpose of a column matrix is a row matrix.
The transpose of a row matrix is a column matrix. And the transpose of a column matrix is a row matrix.
A symmetric matrix is equal to its transpose: AT = A.
A symmetric matrix must be a square matrix. Here are some symmetric matrices:
 |
 |
 |
In terms of its elements, if a matrix is symmetric, then aij = aji.
Is the zero matrix symmetric?