number-roll
A number whose digits roll to their new value. Each digit is a reel behind a soft-edged window: it rolls the way the number moved, streaks while it is fast, and digits fold in and out when the number changes length.
number-roll
A number whose digits roll to their new value. Each digit is a reel behind a soft-edged window: it rolls the way the number moved, streaks while it is fast, and digits fold in and out when the number changes length.