# functional

> mapping from a mathematical space to the real or complex numbers

**Wikidata**: [Q579600](https://www.wikidata.org/wiki/Q579600)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Functional_(mathematics))  
**Source**: https://4ort.xyz/entity/functional


## References

1. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=12463)
2. Freebase Data Dumps. 2013
3. Integrated Authority File
4. National Library of Israel