main/src/georegression/struct/GeoTuple_F64.java
public double normSq() {
		double total = 0;
		int N = getDimension();
		for( int i = 0; i < N; i++ ) {
			double a = getIdx( i );
			total += a * a;
		}

		return total;
	}
public double normSq() {
		double total = 0;
		int N = getDimension();
		for( int i = 0; i < N; i++ ) {
			double a = getIdx( i );
			total += a * a;
		}

		return total;
	}
Computes the square of the Euclidean norm.

@return norm squared.