# Caustic

> envelope of rays either reflected or refracted by a manifold

**Wikidata**: [Q3492725](https://www.wikidata.org/wiki/Q3492725)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Caustic_(mathematics))  
**Source**: https://4ort.xyz/entity/caustic-q3492725


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)