code: public static DoubleBinding toRadians(final ObservableDoubleValue angdeg) {
          return createDoubleBinding(() -> Math.toRadians(angdeg.get()), angdeg);
      }
docs: Binding for {@link java.lang.Math#toRadians(double)}
  
  @param   angdeg   an angle, in degrees
  @return  the measurement of the angle {@code angdeg}
  in radians.