code: public static DoubleBinding scalb(final ObservableDoubleValue d, final ObservableIntegerValue scaleFactor) {
          return createDoubleBinding(()->Math.scalb(d.get(), scaleFactor.get()), d, scaleFactor);
      }
docs: Binding for {@link java.lang.Math#scalb(double, int)}
  
  @param d number to be scaled by a power of two.
  @param scaleFactor power of 2 used to scale {@code d}
  @return {@code d} &times; 2<sup>{@code scaleFactor}</sup>