code: @Pure
  	public static Point2d L93_EL2(double x, double y) {
  		final Point2d ntfLambdaPhi = NTFLambert_NTFLambdaPhi(x, y,
  				LAMBERT_93_N,
  				LAMBERT_93_C,
  				LAMBERT_93_XS,
  				LAMBERT_93_YS);
  		return NTFLambdaPhi_NTFLambert(
  				ntfLambdaPhi.getX(), ntfLambdaPhi.getY(),
  				LAMBERT_2E_N,
  				LAMBERT_2E_C,
  				LAMBERT_2E_XS,
  				LAMBERT_2E_YS);
  	}
docs: This function convert France Lambert 93 coordinate to
  extended France Lambert II coordinate.
  
  @param x is the coordinate in France Lambert 93
  @param y is the coordinate in France Lambert 93
  @return the extended France Lambert II coordinate.