* intervals are [-Inf, 2.0) and [2.0, +Inf]. It appears that the first
* interval should be [1.0, 2.0). However, since all values that are too
* small are mapped to range zero, the first interval is effectively
* intervals are [-Inf, 2.0) and [2.0, +Inf]. It appears that the first
* interval should be [1.0, 2.0). However, since all values that are too
* small are mapped to range zero, the first interval is effectively