main/src/georegression/struct/line/LineGeneral2D_F64.java
public void normalize() {
		double d = Math.sqrt(A*A + B*B);
		A /= d;
		B /= d;
		C /= d;
	}
public void normalize() {
		double d = Math.sqrt(A*A + B*B);
		A /= d;
		B /= d;
		C /= d;
	}
Ensures that A*A + B*B == 1