text: Returns Normal of a matrix of size n x n
code: def findNormal ( mat , n ) : NEW_LINE INDENT sum = 0 ; NEW_LINE for i in range ( n ) : NEW_LINE INDENT for j in range ( n ) : NEW_LINE INDENT sum += mat [ i ] [ j ] * mat [ i ] [ j ] ; NEW_LINE DEDENT DEDENT return math . floor ( math . sqrt ( sum ) ) ; NEW_LINE DEDENT