Reading up on BigDecimal
2 deep · digging since jun 29
- Fintech Engineering Handbook
Hacker News commenters debate whether monetary values must always be stored as integers, with quants arguing floats suffice for risk modeling but transfers require exact integer precision.
- Fintech Engineering Handbook
The handbook catalogs patterns for representing, recording, and executing money movements—precision handling, double-entry ledgers, immutability, and invariants—to prevent data loss or invention in fintech systems.