/** * Returns the unit in the last place (ULP) of this {@code BigDecimal} * instance. An ULP is the distance to the nearest big decimal with the same * precision. * <p> * The amount of a rounding error in the evaluation of a floating-point * operation is often expressed in ULPs. An error of 1 ULP is often seen as * a tolerable error. * <p> * For class {@code BigDecimal}, the ULP of a number is simply 10^(-scale). * <p> * For example, {@code new BigDecimal(0.1).ulp()} returns {@code 1E-55}. * * @return unit in the last place (ULP) of this {@code BigDecimal} instance. */ public static BigDecimal Ulp(BigDecimal value) { return(BigDecimal.Create(1, value.Scale)); }