Spreadsheet Circular Reference Finder — illustrative example

INPUT
A1 contains =B1+1 and B1 contains =A1+1.

RESULT
Dependency cycle: A1 → B1 → A1. Clarify the intended inputs before changing either formula.

REVIEW
Circular references require the dependency relationships, not just the displayed values. Distinguish intentional iterative models from accidental cycles.

This is a teaching example, not a live execution record.