main/src/georegression/geometry/UtilCurves_F64.java
public static ParabolaGeneral_F64 convert(ConicGeneral_F64 src , ParabolaGeneral_F64 dst ) {
		if( dst == null )
			dst = new ParabolaGeneral_F64();

		// NOTE haven't put much through if this is the correct way to handle negative values of A or C
		dst.A = Math.signum(src.A) * Math.sqrt(Math.abs(src.A));
		dst.C = Math.signum(src.C) * Math.sqrt(Math.abs(src.C));
		dst.D = src.D;
		dst.E = src.E;
		dst.F = src.F;

		return dst;
	}
public static ParabolaGeneral_F64 convert(ConicGeneral_F64 src , ParabolaGeneral_F64 dst ) {
		if( dst == null )
			dst = new ParabolaGeneral_F64();

		// NOTE haven't put much through if this is the correct way to handle negative values of A or C
		dst.A = Math.signum(src.A) * Math.sqrt(Math.abs(src.A));
		dst.C = Math.signum(src.C) * Math.sqrt(Math.abs(src.C));
		dst.D = src.D;
		dst.E = src.E;
		dst.F = src.F;

		return dst;
	}
Converts the conic into a parabola. If the conic isn't a parabola then it is converted into one
by adjusting the value of B.

@param src (Input) Conic
@param dst (Output) Optional storage for converted parabola
@return Parabola