Matches a value against [min, max) bands in a reference table and brings the matched band across. Tiered commission, tax brackets, aging buckets.
- Compares in decimal – no float drift on a rate boundary.
- Overlapping bands raise a loud error, never an arbitrary pick.
- A value outside every band is null or an error – your choice, declared up front.
- Each result cell records the input value and the matched band's min, max, and value.
23 testsbuilt by Assertionversion pinned per run
