# quadratic variation

> quantity defined for a stochastic process; its finiteness ensures that stochastic calculus works properly

**Wikidata**: [Q7268374](https://www.wikidata.org/wiki/Q7268374)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Quadratic_variation)  
**Source**: https://4ort.xyz/entity/quadratic-variation


## References

1. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)