frobeniusNorm method

double frobeniusNorm()

Computes the frobenius norm. It's the squareroot of the sum of all squared matrix elements.

Implementation

double frobeniusNorm() {
	final e = elements;
	double norm = 0;

	for ( int i = 0; i < 9; i ++ ) {
		norm += e[ i ] * e[ i ];
	}

	return math.sqrt( norm );
}