# functional derivative

> concept in calculus of variation

**Wikidata**: [Q2621220](https://www.wikidata.org/wiki/Q2621220)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Functional_derivative)  
**Source**: https://4ort.xyz/entity/functional-derivative


## References

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