text: Program to check if a matrix is symmetric | Returns true if mat [ N ] [ N ] is symmetric , else false ; Driver code
code: def isSymmetric ( mat , N ) : NEW_LINE INDENT for i in range ( N ) : NEW_LINE INDENT for j in range ( N ) : NEW_LINE INDENT if ( mat [ i ] [ j ] != mat [ j ] [ i ] ) : NEW_LINE INDENT return False NEW_LINE DEDENT DEDENT DEDENT return True NEW_LINE DEDENT mat = [ [ 1 , 3 , 5 ] , [ 3 , 2 , 4 ] , [ 5 , 4 , 1 ] ] NEW_LINE if ( isSymmetric ( mat , 3 ) ) : NEW_LINE INDENT print " Yes " NEW_LINE DEDENT else : NEW_LINE INDENT print " No " NEW_LINE DEDENT