code: @Pure
  	@Inline(value = "new Vector2ifx(Math.cos($1), Math.sin($1))", imported = {Vector2ifx.class})
  	public static Vector2ifx toOrientationVector(double angle) {
  		return new Vector2ifx(Math.cos(angle), Math.sin(angle));
  	}
docs: Replies the orientation vector, which is corresponding
  to the given angle on a trigonometric circle.
  
  @param angle is the angle in radians to translate.
  @return the orientation vector which is corresponding to the given angle.