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Show that for any square matrix, the matrix A + ( A )^t is symmetric.
My attempt. I know that A square matrix has the property that asub (ij). Where i=1,..., m and j=1,..,n.
M=n(same number of rows and columns).
I know that a transpose of a matrix means to interchange the rows with columns.
What I do not understand what it means for a matrix to be symmetric?
My attempt. I know that A square matrix has the property that asub (ij). Where i=1,..., m and j=1,..,n.
M=n(same number of rows and columns).
I know that a transpose of a matrix means to interchange the rows with columns.
What I do not understand what it means for a matrix to be symmetric?