# complex number

> number that can be put in the form a + bi, where a and b are real numbers and i is called the imaginary unit

**Wikidata**: [Q11567](https://www.wikidata.org/wiki/Q11567)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Complex_number)  
**Source**: https://4ort.xyz/entity/complex-number


## References

1. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
2. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=6845)
3. Nuovo soggettario
4. Freebase Data Dumps. 2013
5. YSO-Wikidata mapping project
6. BabelNet
7. National Library of Israel
8. KBpedia