# curl

> differential operator describing the rotation at a point in a 3D vector field

**Wikidata**: [Q206310](https://www.wikidata.org/wiki/Q206310)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Curl_(mathematics))  
**Source**: https://4ort.xyz/entity/curl-q206310-2


## References

1. Freebase Data Dumps. 2013
2. International Electrotechnical Vocabulary
3. ISO 80000-2:2019 Quantities and units — Part 2: Mathematics