# PCB spacing requirement comparison
# Scope: Comparison against user-supplied clearance requirement; no standards lookup.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

available = 2 mm
required = 1 mm

margin := available-required [mm]

check supplied clearance requirement: margin >= 0 mm

scenario alternative: available = 1.6 mm