Reference

This tab is the lookup half of the TrueCalc documentation.

• Functions — one page per spreadsheet function, generated from the engine's functions.json registry. Do not edit these pages by hand; run npm run gen-docs.
• Error codes — what #N/A, #REF!, #VALUE! and friends mean.
• Dialects — Google Sheets vs Excel behavior differences and why an engine flavor must always be chosen explicitly.
• Workbook JSON schema — the cross-surface workbook contract (v1).