# Fourier transform

> mathematical transform that expresses a function of time as a function of frequency

**Wikidata**: [Q6520159](https://www.wikidata.org/wiki/Q6520159)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Fourier_transform)  
**Source**: https://4ort.xyz/entity/fourier-transform


## References

1. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=19577)
2. Nuovo soggettario
3. Freebase Data Dumps. 2013
4. Integrated Authority File
5. ISO 80000-2:2019 Quantities and units — Part 2: Mathematics
6. National Library of Israel
7. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)
8. [Source](https://www.wikidata.org/wiki/Wikidata:Property_proposal/Digital_Library_of_Mathematical_Functions_ID)