main/src/georegression/struct/curve/ParabolaGeneral_F64.java
public boolean isEquivalent( ParabolaGeneral_F64 parabola , double tol ) {
		double scale = relativeScale(parabola);

		if( Math.abs(A*scale-parabola.A) > tol )
			return false;
		if( Math.abs(C*scale-parabola.C) > tol )
			return false;
		if( Math.abs(D*scale-parabola.D) > tol )
			return false;
		if( Math.abs(E*scale-parabola.E) > tol )
			return false;
		if( Math.abs(F*scale-parabola.F) > tol )
			return false;

		return true;
	}
public boolean isEquivalent( ParabolaGeneral_F64 parabola , double tol ) {
		double scale = relativeScale(parabola);

		if( Math.abs(A*scale-parabola.A) > tol )
			return false;
		if( Math.abs(C*scale-parabola.C) > tol )
			return false;
		if( Math.abs(D*scale-parabola.D) > tol )
			return false;
		if( Math.abs(E*scale-parabola.E) > tol )
			return false;
		if( Math.abs(F*scale-parabola.F) > tol )
			return false;

		return true;
	}
Determines if they are equivalent up to a scale factor